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  • Fisheries  (376)
  • LUNAR AND PLANETARY EXPLORATION
  • Inorganic Chemistry
  • Iranian Fisheries Science Research Institute  (193)
  • Marine Fisheries Research Department, Southeast Asian Fisheries Development Center  (183)
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  • 1
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    Chrysiptera unimaculata Cuvier, 1830 (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21041 | 17408 | 2017-04-27 05:58:40 | 21041 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Chrysiptera unimaculata, an algivorous species also living on the coral reef flat and being territorial but not considered as a strict farmer in this location. Maximum length is 8 cm in Persian Gulf. It is living in close association with macrophytes. Adults are found solitarily or in small groups among coastal algal reefs, rubble or over open beach-rock of reef flats exposed to moderate surge and feeds mainly on benthic algae. C. unimaculata is oviparous, distinct pairing during breeding. Eggs are demersal and adhere to the substrate. Males guard and aerate the eggs.
    Keywords: Biology ; Fisheries ; Chrysiptera unimaculata
    Repository Name: AquaDocs
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  • 2
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    Torpedo sinuspersici  Olfers, 1831 (2021)
    Iranian Fisheries Science Research Institute | Iran
    In:  http://aquaticcommons.org/id/eprint/21038 | 17408 | 2017-05-09 10:38:24 | 21038 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Electric rays, thought to be the most primitive of the skates and rays, have stout tails but have rather expansive disc. This group is distinguished by the presence of powerful electric organs, derived from branchial muscles in head region. Torpedo sinuspersici found inshore in sandy bottoms, and well offshore from the surf zone down to 200 m. Also on or near coral reefs (like Kish Island in Persian Gulf). Common in shallow sandy areas. Occasionally hooked by anglers, more often seen by divers; can deliver a strong shock. Flesh is edible. T. sinuspersici can survive for hours after being stranded on the beach. Little is known of the life history of the Gulf torpedo. It is a sluggish predator of bony fishes. At night it actively hunts for food, sculling slowly through the water about a meter above the bottom; during the day it usually rests on the bottom and opportunistically ambushes unwary prey. It uses its broad pectoral fins to envelop the target fish before delivering an electric shock to stun it. Usually solitary, they may form groups during the mating season. Reproduction is a placental viviparous, with the developing embryos initially surviving on their yolk sacs, and then on enriched uterine fluid produced by the mother. Litters of 9-22 young are birthed in the summer. Newborns measure about 10 cm wide; males mature at a disc width of 39 cm and females at 45 cm.
    Keywords: Biology ; Fisheries ; Torpedo sinuspersici
    Repository Name: AquaDocs
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  • 3
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    Boloceroides spp. (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21044 | 17408 | 2017-04-27 06:00:37 | 21044 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Boloceroides spp. are looking like an untidy mop, this anemone is sometimes seen in sea grass areas on many of our shores. It is possibly seasonal. Sometimes, large numbers are seen (up to 10-20 animals in a trip) and then none at all.  Tiny swimming anemones may sometimes be confused with Sea grass anemones which have translucent tentacles with tiny spots. The swimming anemone harbors symbiotic single-celled algae (zooxanthellae). The algae undergo photosynthesis to produce food from sunlight. The food produced is shared with the sea anemone, which in return provides the algae with shelter and minerals. The oral disk and tentacle muscles are used to obtain, retain, and ingest prey; in Boloceroides spp. tentacles can autotomize if it is needed to evade a predator. Tentacles can control body form by use of their endodermal muscles. Retractors are longitudinal muscles that will aid in withdrawing tentacles and the oral disk if they are exposed to the open air.  This hypothesis is furthered because in comparison to other sea anemones, Boloceroides is loosely attached to its respective substrate, thus allowing the pedal disk to detach quickly resulting in a rapid swimming response. Boloceroides can reproduce both sexually and asexually. As Anthozoans, Boloceroides produce sexually by bypassing the medusa life cycle stage; this allows Boloceroides (and all Anthozoans) to release their egg and sperm creating planula a bilaterally symmetrical, flattened, ciliated, motile larva.
    Keywords: Biology ; Fisheries ; Boloceroides
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  • 4
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    Koumansetta hectori  Smith, 1957 (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21042 | 17408 | 2017-04-27 03:56:54 | 21042 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Many aquarists know this fish as Ambylgobius hectori but accepted name is actually Koumansetta hectori. K. hectori, Hector's goby, is a species of goby native to the Indian Ocean (including the Red Sea), first record from Persian Gulf (Kish Island, Iran) to the islands of Micronesia in the western Pacific Ocean. It can be found on sheltered coral reefs at depths of from 3 to 30 meters (though usually between 5 to 20 meters). This species reaches a length of 8.5 centimeters (3.3 in) SL. This attractive little fish measures only 2” at maturity and spends its time hovering over rocks and substrates out in the open water column. Known for their bold yellow stripes, peaceful disposition, the diminutive Hector’s Goby is a nano reef favorite. It can also be found in the aquarium trade.
    Keywords: Biology ; Fisheries ; Koumansetta hectori
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  • 5
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    Pempheris vanicolensis (Cuvier, 1831) (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21051 | 17408 | 2017-04-27 03:54:11 | 21051 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Pempheris vanicolensis has reported for the first time from Persian Gulf (Kish Island). Various aspects of the biology of P. vanicolensis Cuvier & Valenciennes, a recent Lessepsian (Suez Canal) immigrant into the Mediterranean, are given. Red Sea and Mediterranean populations were compared, and the results indicate that the spawning season is shortened in the Mediterranean, continuing from April to September, as opposed to year-round in the Red Sea. Descriptions of a ripe ovary and post-larva from the Mediterranean are given. Individuals reach a mean size of 10.8 cm in their first year, and 14.4 cm in the second year. Little change has occurred in the diet of the immigrant population, and both populations feed nocturnally, chiefly on larval and adult stages of planktonic crustaceans. Direct underwater observations on the diurnal behavior of the species show that the fish leave their daytime cave shelter at sunset, congregate at a nearby site and then migrate inshore and disperse into small groups to feed. Before dawn, they reassemble at the cave's entrance, and finally enter it at sunrise, after the school has built up. Observations on Persian Gulf sweepers show that the fish are segregated into size groups, ranging 15–18 cm adults at depths of 3 m.
    Keywords: Biology ; Fisheries ; Pempheris vanicolensis
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  • 6
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    An investigation of some biological aspects of three species: tiger toothed croaker, Otolithes ruber, Javelin grunter, Pomadasys kaakan and black pomfret, Parastromateus niger in the Oman Sea for optimizing fishing season (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25105 | 18721 | 2018-08-23 05:49:02 | 25105 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: During the years 1382-83, some biological aspects of three species Tiger-toothed Croaker, Otolithes ruber, Javelin grunter, Pomadasys kaakan, Black Pomfret, Parastromateus niger, have been investigated in the Oman Sea along Sistan-O-Baluchistan province. Based on the frequency of developed maturity stages (IV, V), a prologed spawning activity extending from August to March was determined for O.ruber, and the Gonadosomatic Index (GSI) suggests two peaks:the minor one in October and the major one in March-April. Comparison of Hepatosomatic Index (HI) and Condition factor (Kn) with the peak spawning indicated a reverse relationship. According to length at first maturity (Lm50%= 40cm) and exploitation of fish at length 42cm above, the stretched optimum mesh size of nets was calculated to be 100mm. On analysis of stomach food item, fish group dominated (80%), which of them Anchovy accounted for 40% of the total frequency. Comparison of mean length between the years 1374-75 and 1382-83 showed 4cm in decrees. Population dynamics parameters were determined through length based modals and the exploitation rate was estimated to be E=0.6, suggesting high level exploitation. The usal streched mesh size of nets(constructed from multifilament webbing) for capturing O.ruber were less than the proposed optimum mesh size of nets, indicating 78% of the total landings were smaller than Lm50%. Total landings in 1381 have increased up to 15% when compared to those of the year 1376. Despite the decrease of total efforts (Panel.day) by 37%, the mean value CPUE has increased up to 82%. Regarding Pomadasys kaakan species, a year-round spawning activity has been observed, with two peaks: A major one in April and an aminor one in September. As those of O.ruber species, there was an inverse relationship between HI and Kn with the peak spawning activity. Based on the length at first maturity (Lm50% = 44cm) and capturing fish of the length at 46cm and above, the stretched optimum mesh size of nets was calculated to be 149.6mm. According to analysis of stomach contents, fish group accounted for 35% of the groups studied, which of them , Largehead hairtail, Trichiurus lepturus linnaeus, constituted 52% of the total frequency. In addition to estimation of population dynamics, the exploitation rate was estimated to be E= 0.49. Majority of the species catch was made by mesh size of nets used for O.ruber of which 133mm mesh size accounted for the level (30%). Information on length distribution showed that 60% of the total fish landed was below Lm50%. Total landings in 1381 decreased to 10% in comparison to 1376.Total fishing efforts and CPUE also decreased to 33% and 24% respectively. For parastromateus Niger, There was a long period spawning activity from March to December, with two peaks: A major one in August and a minor one in March. According to Lm50% (39cm) and catching of fish 39cm above, the stretched optimum mesh size of nets was calculated as 167.7mm. Based on stomach contents, ring-shaped worms and larval shrimp equally made 29% of the total frequency showing the highest contribution. Comparison of mean length indicated 3cm in decrease in 1382-83 when compared to 1374-75. Population dynamics parameters were estimated and the exploitation rate was estimated to be E = 0.54. The usual stretched mesh size of nets for P. niger was 146mm and 81% of the total fish landed were smaller than Lm50%.In 1381,total catch of the species increased four and a half-fold in comparison to 1376, while total efforts decreased up to 28% and CPUE increased two and a half-fold.
    Keywords: Biology ; Fisheries ; Iran ; Oman Sea ; Investigation ; Biological ; Tiger toothed Croaker ; Otolithes ruber ; Javelin grunter ; Pomadasys kaakan ; Black pomfret ; Parastromateus niger ; Season ; Fishing
    Repository Name: AquaDocs
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  • 7
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    Survey on parasitic infections of Barbus spp. from south-west of Iran (Khouzestan Province) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25108 | 18721 | 2018-08-24 06:17:44 | 25108 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: A survey on parasitic infections on Barboid fishes of South- west of Iran (Khouzestan province) were done during Spring 2002 to Autumn 2004. Altogether 296 specimens from 5 different fish species were examined. The fishes were collected from five stations of Karoun River (Ahwaz-Goulestan, Molasani, Dez Dam), Karkheh River (Hamidia Dam) and Shadgan Lagoon. The fishes transported alive to the laboratory where they measured and weighted. Then they were killed by cutting the spinal cord. According to the results of this study 22 different parasites were revealed, 15 of then detected to the species level and 7 of them to the genus level. The metazoans are as follows: The monogenea, are Dactylogyrus onchoratus, D.persicus. Two digeneans: Diplostomum spathaceum, Asymphilodora sp. Five nematods: Rhabdochona denudata, Philometra karuensis, Philometra sp., Psudocapilaria tomentosa Contracecum larvae sp. and only one acanthocephalus, Neoechinorhynchus. Three protozoans are: Ichtyophthirius multifiliis, Trichodina sp., Goussia sp., Balantidium sp. And Myxozoans: Myxobolus persicus M. karuni M. nodulointestinalis, M iranicus, M.mesopotamia, M. pfief eri, Myxobolus sp., Myxidium rhodei, Myxidium pfiefferi. Histopathological investigation of some parasites was done as well. Pathologacal potential of M. nodulointestinalis and M. pfiefferi were revealed. According the results of this study three new parasites and eleven new hosts for Iranian freshwater fishes and three new host for three Myzoxoans were introduced.
    Keywords: Biology ; Ecology ; Fisheries ; Iran ; Khouzestan Province ; Barbus fishes ; Parasites ; Protozoa ; Metazoa ; Dactylogyrus onchoratus ; Rhabdochona denudata ; Philometra karuensis ; Species ; Fish
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  • 8
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    Identification of native fishes of western Azarbaijan province - phase 1: northern water source (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25116 | 18721 | 2018-08-24 06:19:54 | 25116 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The aim of this research was to identify fish species distributed in the water resources located at West- Azarbaijan province. Sampling was done seasonally, from 14 sampling sites in main branches of different rivers including Aras, Zangmar, and Ghator. Fish samples caught with different tools, fixed in 10 % formalin, and finally transferred to the laboratory for biological investigations. The identified fish were 25 species belonging to 8 fish family comprising of Cyprinidae, Balitoridae, Cobitidae, Siluridae, percidae, poecilliidae, Gobiidae, Salmonidae. Among them, cyprinidae family had the highest percentage of diversity. There were 2 species from Balitoridae and 1 species from the rest of other family.
    Keywords: Biology ; Fisheries ; Iran ; Western Azarbaijan province ; Identification ; Native fishes ; Water
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  • 9
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    Study on propagation and breeding of Hamoun fish (shizothoraxzarudnyi) to one gram weight in earthen pond (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25322 | 18721 | 2018-09-12 09:50:04 | 25322 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Hamoun fish, Schizothorax zarudnyi, is an indigenous species of the eastern waters of Iran, which is exclusively found in this region. However recently drought occurrence in the Chahnimeh reservoirs (a semi natural water body) making them vulnerable to extinction. As an appropriate action to address this problem and according to the 3 side contract between Italian Government – UNDP - Islamic republic of Iran Government and the Italian government financial support to reduce poverty in the Province of Sistan-Baluchestan through the reinforcement and dissemination of aquaculture activities the project was developed at the Hamoun Research Unit by the Chahbahar Fisheries Research Center to record the breeding normative of 1 g weight larvae for restocking and other researching purposes. 331 broodstocks of the indigenous species Shizothorax zarudnyi weighing 800-2450 g were collected from the Chahnimeh reservoirs in early autumn, 2006. From 5/3/2007 (the project is supported and communicated on 2010) , Ovulation was stimulated with three stimulators; pituitary extract (3-6 mg kg-1 body weight), GnRH-A (20-30 mg kg-1 body weight) and anti dopamine (10-15 mg kg-1 body weight) that was given in 2-3 doses to breeders. Of 169 injected breeders , some were injected On mid March of 2007 (12-13 ºC water temperature) responded to the injection 25% ,while the rest were injected On April of 2008 (14-16 ºC water temperature) responded to the injection 65%. In the present project of 167 breeders 82 were female and 87 male. Totally 30 female breeders released their eggs in different stages. 20 female breeders released their eggs completely, 3 breeders released half of their eggs and 7 released 1/3 of their eggs. The male breeders just injected in the final dose of hormontrapy and all were ready for releasing sperms however the ovulation in female breeders occurs between 353-428 h ºC and after the final dose of injection. Ripe eggs were stripped from the females and fertilization was done by the dry method. Fertilized eggs were transferred to veis incubators and troughs. Incubation period for eggs differs and larvae hatch out after about 910 days at an average water temperature of 12.5 °C. Maintained at 13-14 °C, complete absorption of yolk sac in Shizothorax zarudnyi larvae occurred after 5-8 days. Larvae were fed with a mixture of powdered milk and egg yolk in this stage followed by decapsulated Artemia cysts and nauplii of Artemia and then on formulated starter diets used for carps. Because the ponds were not ready, larvae were maintained in troughs for about ten days before they were transferred to two 1200 m2 earthen ponds where they reached a body weight of about 1 g. They were then handed over to the Iranian Fisheries department in the region. Larvae were fed with the starter feed SFCO in the earthen ponds. About 350 thousand larvae were stocked in two earthen ponds. Based on the results of present study and other studies we may conclude that artificial breeding in Schizothorax can be successfully achieved at 14-16 ºC in flow through systems using hormone therapy (combination of GnRha and anti dopamine) and larvae could be easily cultured in earthen ponds. However this species exhibits lower growth rates as compared to carps its high expenses could have an important role in economical feasible.
    Keywords: Aquaculture ; Iran ; Sistan and Baluchestan province ; Chahnimeh reservoirs ; Chahbahar ; Hamoun fish ; Schizothorax zarudnyi ; Breeding ; Species ; Aquaculture ; Temperature ; Female ; Eggs ; Hormontrapy ; Sperm ; Ovulation ; Larvae ; Fisheries ; Earthen ponds
    Repository Name: AquaDocs
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  • 10
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    Efficiency of shrimp trawl nets polyamide and polyethylene with standard mesh in the coastal waters of Bushehr Province (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25346 | 18721 | 2018-09-14 07:15:47 | 25346 | Iranian Fisheries Science Research Institute
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    Publication Date: 2021-07-16
    Description: This study was carried out in August – september 2009 in Bushehr province waters. Two different shrimp bottom trawls were used in which were woven by Poly Amid and Poly Ethylene with mesh sizes (stretched) of 50 mm and sack with 35 mm. Also 2 different vessels of two dhows and one steel ship each with 26 and 30 hauls were used and taken in to comparison from point of obtained results. Total catch of PA and PE trawels were 4592 and 5535 kg of which the ratio of shrimp catch and by catch for PA trawl was 32.4 and 67.6 % respectively; and for PE trawl was 34.2 and 65.8%. Total catch of PA and PE trawls of steel trawler ( ship ) were estimated 3158.0 and 4784.7 kg, respectively, of which the shrimp/ bycatch ratio was 6.6 : 93.4%. There was a higher amount of bycatch for PE comparing to PA trawl (p〈0.05). on the other hand the decrease of shrimp and bycatch for PA comparing to PE dhow trawlers were 21.3 and 15.0% and for ship were 34.6 and 34.0% respectively. The weight ratio is 1:15 i.e . in PE ship trawl, in proportion to on kg shrimp, 15 kg bycatch was harvested. it is proposed to standardize the mesh size and also to do obligtory the instal of squared mesh size panel .
    Keywords: Fisheries ; Iran ; Bushehr Province ; Shrimp ; Poly Amid ; Poly Ethylene ; Weight ratio ; Mesh size ; Obligtory ; Trawling
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  • 11
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    Rearing of Indian craps fries to 1g weight in earthen ponds (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25351 | 18721 | 2018-09-13 12:58:15 | 25351 | Iranian Fisheries Science Research Institute
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    Publication Date: 2021-07-16
    Description: 30000 juvenile Indian majour carps (Labeo Rohita,Cirhinus merigala, Catla catla) imported (2007 and 2008) and transferred to the earthen ponds in Astaneh Fisheries Research Station (Gilan) and Sheiban Resaerch center (Khozestan), In order to assess the viability of rearing fry up to 1 gram fingerlings under the climatic condition of north and south part of Iran . Growth parameters from the larval stage to 1 g were studied also. The fry with 300 mg weight, were released in to 3ponds.specimens were separated to tree experimental categories. fishes were fed with artificial food and also with the natural products of the ponds which were enriched with organic fertilizers, after being equally stocked in the ponds .During the experiment, oxygen level ,PH, turbidity, and temperature were measured . Monthly fry samples were taken, for weight and length biometrical analysis and also determination of the weight gain percentage, average daily growth rate, specific growth rate. Results have indicated adaptations and considerable growth in this species, with an increase from the initial weight of 300 mg to an average of 13.5±1.6 mg in 50 days period until the end of November for fingerlings.Catla was gain 1 g. during 15 day while Roho and Merigal were gain 1 g. during 14 and 10 days respectively. Results revealed that the Indian majour carps compatibility with the condition in Gilan province was succesfull and the combination of species and optimization of their compatibility specialy in other provinces like Sistan and Baluchestan were remind for futhre studies.
    Keywords: Aquaculture ; Iran ; Guilan Province ; Astaneh ; Indian carp ; Growth ; Labeo Rohita ; Cirhinus merigala ; Catla catla ; Juvenile ; Earthen ponds ; Fisheries ; Fry ; Fingerlings ; Artificial food ; Oxygen level ; Turbidity ; Fertilizers
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  • 12
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    Development and storage stability of fish strudel (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25360 | 18721 | 2018-09-14 07:17:12 | 25360 | Iranian Fisheries Science Research Institute
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    Publication Date: 2021-07-16
    Description: Awareness of health and nutrition of fish has led the food industry to development of fishery-based ready-to-eat products. In this study seven filling materials based on 60-70 - 80% fish mince from 7 local fish species ‘i.e.’ Talang Queen fish (Scomberoides commersonnianus), oriental sole (Brachirus orientalis), Barred sickle fish (Drepane longimana), Big eye Croaker (Pennahia anea), Japanese threadfin bream (Nemipterus japonicas), javelin grunter (pomadasys kaakan) and Indian mackerel (Rastrelliger kanagurta) were formulated and applied for developing fish strudels. A 9-point hedonic scale ranging from 1 (extremely dislike) to 9 (extremely like) was used for screening the acceptance of the prototypes. A 3-component D-optimal Mixture Design was also applied to optimize the fish strudel formulation. Preliminary experiments were done to identify the high-impact ingredients, which had a high effect on the sensory quality when their levels (%) were changed. The results indicated that fish strudel containing 60% Talang Queen fish (Scomberoides commersonnianus) mince in the filling materials had significantly higher liking in odor, flavor, and overall acceptability than the other prototypes. So it was selected for quality changes study. Product's characteristics and stability were studied during 6-month storage at -18 °C. The fish strudel packed in a polyethylene sealed bag was stable during the storage period. The peroxide and TVBN values remained low. The results in this paper provide important information for companies planning to develop convenience food from low value fish. Furthermore, development of strudel filled with fish mince/ flesh could be an effective way to enhance nutritional and functional value of such products. The products could be used as a nutritious snack especially for kids which could be a means of increasing fish consumption.
    Keywords: Fisheries ; Iran ; Low value fish ; Fish strudel ; Fish mince ; Acceptance test ; Quality changes ; Scomberoides commersonnianus ; Talang Queen fish ; Pennahia anea ; Rastrelliger kanagurta ; Nemipterus japonicas
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  • 13
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    Feasibility study on semiintensive polyculture of chainess and Indian carps in I.R.IRAN (Guilan province) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25352 | 18721 | 2018-09-14 06:57:48 | 25352 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: 15000 juvenile Indian majour carps (Labeo Rohita,Cirhinus merigala, Catla catla) imported (200 ) and transferred to the earthen ponds in Astaneh Fisheries Research Station , In order to assess the viability of rearing under the climatic condition of north part of Iran and also achieve some growth parameters from the larval stage to market size.The fry with 300 mg weight, were released in to 12 ponds. Specimens were separated to tree experimental categories: 1= (30%indian carp and 70% chinees carp) , 2= (50%indian carp and 50% chinees carp) , 3= (70%indian carp and 30% chinees carp) .single chinees carp production were used as control . fishes were fed with artificial food and also with the natural products of the ponds which were enriched with organic fertilizers, after being equally stocked in the ponds .During the experiment, oxygen level ,PH, turbidity, and temperature were measured. Monthly fry samples were taken, for weight and length biometrical analysis and also determination of the weight gain percentage, average daily growth rate, specific growth rate. Results have indicated adaptations and considerable growth in this species, with an increase from the initial weight of 300 mg to an average of 13.5±1.6 mg in 50 days period until the end of November for fingerlings. Also the average weight of growing phase (second year of production ) was 647g for Labeo Rohita ,420 g. for Cirhinus merigala and 734g for Catla catla. The special growth rate (SGR)in Roho was 4.51 %.and 3.9 % for merigal and6.2 % for Catla while for Chinees carps SGR was 4.9, 6.7, 7.6 and 5.8 for silver carp,grass carp, common carp and big head respectively. Results revealed that the Indian majour carps compatibility with the condition in Gilan province was succesfull and the combination of species and optimization of their compatibility were remind for futhre studies.
    Keywords: Aquaculture ; Iran ; Guilan Province ; Astaneh ; Indian carp ; Growth ; Labeo Rohita ; Cirhinus merigala ; Catla catla ; Polyculture ; Juvenile ; Earthen ponds ; Fisheries ; Rearing ; Larval stage ; Fry ; Specimens ; Artificial food ; Fertilizers ; pH ; Turbidity ; Temperature
    Repository Name: AquaDocs
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    The study on possibility of fish soup powder production from different fish species in Sistan O blochestan Province, Chabahar (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25361 | 18721 | 2018-09-14 07:10:40 | 25361 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Fish soup powder is produced from three kinds of fish in Chabahar catched in Oman sea white flesh of many low value fish like threadfin bream, perches etc. can be used to prepare instant fish soup powder. This product has a high consumer acceptability in many countries in this research project we used 4 low value fishes with local name of Sarm, Chaman, Aroos and Talal belonging to families Carangidea, Lethrinidea, Drepanidae and Scombroidea. soup powder packed in laminated pouches and the shelf life of it is one year in ambient temperatures. The quality used to be good up to 6 month but after this time the quality decreases gradually. The experiment on fish soup showed that the percentage of protein was 32 percent, fat 11 percent and humidity 12 percent and ash 4 percent. The experiment conducted on fish soup powder was peroxide, total microbial count, organoleptic test for 6 month.
    Keywords: Fisheries ; Iran ; Oman sea ; Sistanblochestan province ; Chabahar ; Fish Soup Powder ; Species ; Fish ; Threadfin bream ; Carangidea ; Lethrinidea ; Drepanidae ; Scombroidea ; Temperature ; Protein ; Microbial count
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  • 15
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    Biomass estimation of demersal resources in the Persian Gulf and Oman Sea by swept area method (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25383 | 18721 | 2018-09-14 07:42:31 | 25383 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Regarding to monitor of demersal resources in the Persian Gulf and Oman Sea, and also biomass and CPUA estimation of them, eleven research cruises were carried out by using R/V Ferdows-1 equipped with bottom trawl, covering the area from 49º 00´ E in the west (borderline with Kuwait) to 61º 25´E in the east (borderline with Pakistan) from 2009 to 2011. The study area was stratified into 17 strata (A to Q) of which 10 strata (A to J) were in the Persian Gulf and 7 strata (K to Q) were in the Oman Sea, covering the depths of 10-50 m in the Persian Gulf and 10-100 m in the Oman Sea. A total of 316 stations were randomly selected and the biomass and CPUA were estimated by swept area method. In 2009, due to the bloom of jellyfish, there was some problem for sampling and therefore made some bias in our estimation. Therefore, the biomass of jellyfish was excluded from all calculations. The comparison between two regions indicated that the percentage of density of demersal fishes in the Persian Gulf during years 2009, 2010 and 2011 were 1.5, 3.7 and 1.7 times more than the Oman Sea and totally 60-80% of total biomass was found for the Persian Gulf. Also a comparison among 17 strata the highest biomass was found for K region (Sirik to Jask) in the Oman Sea in 2009 & 2011; and C & D regions (Genaveh to Dayyer) in 2010 in the Persian Gulf. The same comparison was done for CPUA of commercial, non-commercial and total in both water bodies and it was found that in years 2009 and 2011 the regions of L (Jask to Meidani) and K (Sirik to Jask) in the Oman ; and 2010 the G region (Mogham to Farour) in the Persian Gulf had the highest value of this parameter. It can be concluded that the north-west of the Oman Sea has the best condition of biomass and CPUA of commercial and non-commercial demersal fishes; and on the contrary the low values were estimated for A region (north-west of the Persian Gulf) and P region (Konarak to Ramin) in the Oman Sea. With review the mean CPUA in defferent depth layers for years 2009, 2010 and 2011, it was concluded that with increasing the depth, the mean CPUA is decreased and the lowest CPUA belongs to depths of 50-100 m. The comparison between commercial and non-commercial groups in both ecosystems, it concluded that the density of commercial species were higher than non-commercial ones; and for years 2009, 2010 and 2011 the commercial species consist of 52.2, 57.1 and 59.7 % of total biomass. In all years the Persian Gulf indicated higher values than the Oman Sea. The most abundant fishes were Rays, Catfishes, Grunts, Japanese threadfin bream, Carangids, Hair tail, Barracuda and Lizardfish for both Persian Gulf and Oman Sea.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Oman Sea ; Sirik ; Jask ; Bandar Genaveh ; Commercial fishes ; Non-commercial fishes ; Biomass ; Catch per unit of area ; CPUA ; Sampling ; Density ; Species ; Catfishes ; Grunts ; Japanese threadfin bream ; Carangids ; Hair tail ; Barracuda ; Lizardfish
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  • 16
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    Recognition of fishes in rivers and basin of Qom (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25143 | 18721 | 2018-08-26 16:50:02 | 25143 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This study was carried out on rivers, basins & qanat of Qom region during the 1376-1378and Fish samples were taken from 2 permanent rivers (Qomrood ,Ghara_chag)& from some seasonal ones (Tagharood, Zavarian, Vesva, Biraghan). Also local fishes was followed in 100 qanats in the region and Random fish sampling was done in permanent river extension out of province. This study aimed to recognize different fish species in the province water reservoir and estimating the fisheries potential in the province. For fish sampling nets such as mashk, salik, hook and hand tailored were used. Electroshoker was not used at all. Results of fish recognition showed that fish samples belong to 12 species & 4 family of "cyprinidae", "Balitoridae", "cyprinodontidae" and "poecilidae".The qanat fishes of the montain (kahak, Khagestan) and pastora area (Ghanavat,jafarabad) included by two families of "cyprinid", "Balitoridea".In some qanat which were connected to rivers more species of fish and anotherAquatic animal were observed & sampled.At the and map of geographical distribution of local fishes was planned.
    Keywords: Biology ; Iran ; Qom province ; Qomrood ; Ghara_chag ; Tagharood ; Fish ; Samples ; Species ; Fisheries ; Electroshoker ; Cyprinidae ; Balitoridae ; Cyprinodontidae ; Poecilidae ; Aquatic ; Recognation
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  • 17
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    Potential estimation and exploitation of large pelagics in the Persian Gulf and Oman Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25137 | 18721 | 2018-08-26 16:54:02 | 25137 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In order to come up with the responsible fishing pattern, there was a need to identify some of the biological characteristics and population dynamic parameters of yellowfin tuna, skipjack and longtail tuna in the Persian Gulf and Oman Sea. Occurrence of empty stomach was high in all the specimens obtained from the gill net fisheries. Purple back flying squid was the most dominant prey species observed in the yellowfin tuna study (61% in males and 57% in females). The length of maturity (Lm50%) for yellowfin tuna was estimated 76 cm, 62.5 cm skipjack and 62.5 cm longtail tuna. Length range of skipjack was from 31-100 cm and bony fishes were the most dominant prey species observed in the skipjack. The monthly gonad somatic index was driven higher values after June which could be indicated as spawning period. The catch per unit of effort of three purse seiners (Azadegan 1, 2, 3) was compared in 1998- 2000. The species composition was 47% yellowfin tuna, 51% long tail tuna and 2% skipjack.
    Keywords: Biology ; Iran ; Persian Gulf ; Oman Sea ; Pelagics ; Biological characteristics ; Population ; Yellowfin tuna ; Skipjack ; Longtail tuna ; Specimens ; Gill Net ; Fisheries ; Purple back flying squid ; Species ; Maturity ; Length ; Gonad Somatic Index ; Spawning ; Estimation ; Potential
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  • 18
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    The use of modified atmosphere packaging for improvement shelf life of fresh Oncorhynchus mykiss (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25168 | 18721 | 2018-08-26 17:35:37 | 25168 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this study, influence of modified atmosphere packaging on shelf life of trout (Oncorhynchus mykiss) (whole fish without visceral and without head and tail fish) stored in 4 to 6ºc was examined. Fish stored in MAP condition and control samples, in different time, were tested for spoilage chemical factors (TVN, PV and pH), microbial parameters (total viable count, clostridium botulinum) and sensory factors too. Mixed gases including co2 (30-50%), N2 (40-65%) and o2 (0 to 20%) were used for trout (without head and tail =6 treatments) and (whole fish without visceral and control = 2 treatments) statistical the analysis results showed that examined factors were significant difference during storage (P〈0.001). Mixed gases haven t had inhibitory effect on spoilage factors (chemical and microbial parameters). However spoilage process was delayed. Increasing of chemical and microbial changes in control samples was higher than treatment samples especially TVN. The results also showed that shelf life of control samples stored 4-6ºc were between 6-12 days but in MAP samples were 19 days. Mixed gases including CO2 (40%), N2 (55%) and O2 (5%) were the best formula and the shelf life of fish (without head and tail) was 16 days where it was 19 days in whole fish (Lack of visceral). The results showed that storage of trout in MAP condition facilities storage and increasing of fish shelf life too.
    Keywords: Fisheries ; Iran ; Oncorhynchus mykiss ; Modified Atmosphere Packaging ; Shelflife ; Rainbow trout ; Samples ; pH ; Microbial parameters ; CO2 ; N2 ; O2
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  • 19
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    Research on determining of mesh size standard for beach seine fishery cooperatives to boost sustainable bony-fish fishery in southern Caspian Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25169 | 18721 | 2018-08-26 17:43:57 | 25169 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Bony fish stocks are being legally utilized by 134 fishing cooperatives in the Iranian side of the Caspian Sea mainly through beach seine. This fishing method has been invariantly used over the past. Fifty years with actually no alteration or technical modifications in the fishing nets despite the substantial changes in the quality & quantity of bony fish resources. Based on the data obtained from the stock assessment project for bony fish, the amount of premature or young fish (substandard size) caught during the past decade has been far greater than those of authorized fish size and even the figures for certain species suggest heavy over fishing to such an extent that in the case of frisii kutum, there has been a reduction by 50% in the overall kutum landings. Thus in order to modify the technical design of the fishing with a view to alleviate the catch of non-standard fish and whereby prevent over fishing by beach seine, it seems imperative therefore to launch a biometric study on bony fish stocks particularly the two intended fish species namely Rutilus frisii kutum and mullet which would involve identification of their standard weight and length using pertinent mathematical equations as well as determining proper mesh size of the code-end and other parts of the nets & consequently the H. R, d/a coefficients. The operations related to project were carried out in the "Inland Aquaculture Research Institute" net mating plant and beach seine site in Anzali during 2005-7 which aimed at designing and constructing standardized beach seines and comparing the fishing performance & yields with those of ordinary beach seine nets under equal conditions with a ratio of 3:1. The results concerning the quality and quantity of fish caught during a whole fishing cycle were recorded in the related data forms. The statistical analysis consisting the comparison of the quality of fishing performance in both the experimental and control beach seine nets was made using T. student and excel, spss 12 software packages. The results indicated that the reduction in the amount of non-standard fish caught in standardized beach seine net (the experimental net) was meaningfully different from that of the ordinary (control) net showing the superior fishing performance of the former. The catch level of non-standard R.frisii kutum decreased from 67.1% in the control beach seine net down to 7.1% in the standardized beach seine net and these figures for mullet were 29.98% and 1.1% respectively. Based on the results obtained and considering the apparent superiority of the experimental net in catching greater number of mature fish and less number of premature or non-standard sized fish, the use of this modified beach seine net can be proposed to Iranian fisheries organization as a viable alternative to the traditional beach seine nets.
    Keywords: Fisheries ; Iran ; Caspian Sea ; Anzali ; Beach seine net ; Rutilus frisii kutum ; Mullet ; Standard sized fish ; Non-standard sized fish ; Bony fish ; Fishing ; Stock assessment ; R.frisii kutum
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  • 20
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    Study and research on the fishing gears in northern waters of Persian Gulf (Khuzestan Province Coastal Waters) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25485 | 18721 | 2018-10-05 07:01:40 | 25485 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Study and research on the fishing gears in northern waters of Persian Gulf (Khuzestan Province Coastal Waters) was carried out from March 2009 to February 2010. Sampling was done for trawl in summer and autumn, for purse seine in autumn and for gillnet and trap in all seasons. The average of total catch was in trawl 167.9 1.06 kg. The rate of bycatch in ± 207.89 and trap 1.66 ±270.17, gillnet 275.86 ± 48.4, purse seine 1795.6 ± trawl net was 87 percent, purse seine net 30.49 percent, gill net 70 percent and trap 6.19 percent. In this study, the number of bycatch species in trawl net are 38 species, gill net 36 species, trap 10 species and purse seine net 4 species. The result of two way ANOVA test in trawl net between bycatch and time, and between bycatch and place showed non-significant differences (p〉0.05, f=0.3) (p〉0.05, f=0.9). The result of two way ANOVA test in gillnet between bycatch and time, showed significant (p〈0.05, f=14.7), and between bycatch and place showed non-significant (p〉0.05, f=1.8). The result of two way ANOVA test in trap between bycatch and time and between bycatch and place was non-significant (p〉0.05, f=0.5). According to the result, rate of bycatch of trawl net is higher than other gear, so control and manage of bycatch in trawl is most important.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Khuzestan Province ; Bycatch ; Fishing gear ; Net ; Trawl ; Gillnet ; Purse seine ; Trap ; CPUE ; Coastal waters
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  • 21
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    Investigation on seafood business in Islamic Republic of Iran (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25506 | 18721 | 2018-10-05 07:29:35 | 25506 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Seafood business is one of the important subjects in fishery activation. It is covered a wide range of fishery activation from the fishing to the table. The fishery production success is depending to the many factors. Without considering the market conditions and suitable trading the fishery activations are not commercial. Therefore considering to the different subjects is necessary. This project is one of the road map seafood processing plans. The aim of this project was to study of the world fishery production, world fish processing, marketing and fish production and treading in Iran by using current different information.
    Keywords: Fisheries ; Iran ; Fishery ; Road map ; Seafood
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  • 22
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    Comparing evaluation of pin bone machinery in the Silver Carp fillet (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25178 | 18721 | 2018-09-03 14:20:19 | 25178 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Pin bone removing is a new equipment for pin-bone removal increase customer satisfaction and revenue even further the bones were pulled out at good speed. Pin boning especially is very often done manually which causes lots of global transports to low cost countries for processing new technique will help make processing operations more efficient and profitable The new generation pin bone removing equipment is mainly for trout and is not suitable for carp fishes the new pin bone remover which works with air of compressor and hand. has proved to work in almost twenty different fish species, including Great silver smelt, Pike Perch, Coho, Sockeye salmon, Atlantic Salmon, Sea Trout, Saithe, Haddock, Herring, Whitefish, Chinook, Salmon, Perch, Rainbow Trout, Char, Mackerel and Hake. Therefore it will be suitable for carp fishes too. After a day’s work all vital parts can be removed by hand without any tools, for effective cleaning to the fish and gives nice looking filets and is determined to help processors by offering state of the art bone-removing equipment which will increase speed, yield and efficiency. But pin bone removing done manually does not give a nice looking fillet also has a considerable waste of fish.
    Keywords: Fisheries ; Iran ; Silver Carp ; Fillet ; Bone ; Generation ; Species ; Pike Perch ; Coho ; Sockeye salmon ; Atlantic salmon ; Whitefish ; Rainbow Trout ; Evaluation ; Great silver smelt
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  • 23
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    Production of oil enriched fish sausage by using emulsion technology and additives to adapt taste, colour and texture (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25188 | 18721 | 2018-09-03 17:21:36 | 25188 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Fish sausages were made from minced fish meat and additives using dehydrogenated vegetable oil and fish oil. Four experimental groups were studied; Group 1 with 65% minced fish meat and 12% soybean oil, Group 2 with 65% minced fish meat and 12% olive oil, Group 3 with 65% minced fish meat and a mixture of 6% fish oil and 6% soybean oil, and Group 4 with 65% minced fish meat and 11.3% corn oil and 0.7% cod liver oil. In all the experimental groups the fish was first headed, the entrails removed and then washed and cut into small pieces. The fish pieces were then put in the meat extractor where the skin and bones were separated from the meat. The minced fish meat was rinsed with clean water and the water was let to drain. The additives for each experimental group were then blended with the minced meat and the mixture was filled in the sausage casings. The stuffed sausage casings were then placed in containers and put in a room to cook. After cooking the sausages were packed and stored in the refrigerator. The quality of the product was tested (chemical, microbial and organoleptic) from phase zero through the entire experimental period which lasted 30 days. Based on the results obtained it was evident that sausages in the experimental Group 1 showed better taste and flavor as compared to those in the other groups.
    Keywords: Fisheries ; Iran ; Minced fish meat ; Sausage ; Vegetable oil ; Fish oil ; Additives ; Microbial ; Organoleptic ; Emulsion ; Colour ; Texture
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  • 24
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    A survey on health status of marine fish in Bandar-e-Imam station (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25189 | 18721 | 2018-09-03 17:16:20 | 25189 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Mariculture is one of the most important sub sector fisheries industry in Asia-pacific region. There are over 40 marine fish species commonly cultured, such as groupers (Epinephlus spp.), snappers (Lutjanus spp.) and Asian sea bass (Lattes calcarifer). But this industry in Southeast Asia experienced serious disease problem since the late 1980s. Khouzestan province has a coastal line about 200 km with many Creek and suitable area for Mariculture. Marine fish culture in Khouzestan province in floating net cages was successfully initiated in Ghazaleh Creek following development of Epinephlus coioides artificial seed production in the 1372. This study has been conducted since 1384 to 1387 in Bandar-e-Imam station. The aim of this research project was to determine the health management status in cage and hatchery, identification of marine fish pathogens (Bacteria, Fungi and parasite), examination of heavy metal in cages sediment and test the physico chemical factors of water in cages and hatchery. Different parts of broodstocks body and fingerlings including intestine, gills and body surface were examined. In this study, 18 Genus and species of bacteria such as Vibrio alginolyticus, Vibrio anguillarum, Vibrio splendidus, Vibrio vulnificus, Plesiomonas shigelloides, Aeromonas hydrophila, Aeromonas caviae, Pseudomonas sp. were diagnosed. Also 7 Genus and species of fungi such as: Aspergillus Niger, Aspergillus flavus, Aspergillus fumigatus, Penicillium sp. And Fusarium sp. Were isolated. In this survey following of disease appearance parasites such as; protozoans Amyloodinium sp. And Trichodina sp. In E.coioides and Acanthopagrus latus and Sparidentex hasta, monogean such as Benedenia sp. In E.coioides and S. hasta, isopoda probably Nerocila sp. In nasal cavity of E.coioides and copepods such as: Caligus sp. And Lernanthropus sp. In A.latus and S.hasta were identified. In this study, microorganisms (bacteria, fungi and parasites) isolated from three different marine fishes species, were reported for the first time in Iran. The range of the physico-chemical parameters of water in cages were: DO (5.42-10.24 ppm), BOD5 (1.51-10.24 ppm), No_2 (0.0197-0.89 ppm), No_3 (3.53-11.93 ppm), Po_4 (0.965-6.05 ppm), turbidity (4-58 NTU) and ammonia (0.0008-0.03 ppm). According to the results parameters such as nitrate, nitrite and turbidity were found more than standard levels. Heavy metals: Ni and Pb relatively high observed.
    Keywords: Biology ; Iran ; Khouzestan province ; Bandar-e-imam ; Mariculture ; Fisheries ; Species ; Epinephlus spp. ; Lutjanus spp. ; Lattes calcarifer ; Bacteria ; Fungi ; Parasite ; Aspergillus niger ; Aspergillus flavus ; Aspergillus fumigatus ; Penicillium sp. ; Fusarium sp. ; Vibrio alginolyticus ; Vibrio anguillarum ; Vibrio splendidus ; Vibrio vulnificus ; Plesiomonas shigelloides ; Aeromonas hydrophila ; Aeromonas caviae ; Pseudomonas sp. ; Grouper ; Snapper ; Sea bass
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  • 25
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    Stock assessment of the bony fishes in Iranian coastal waters of the Caspian Sea (2005-2007) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25192 | 18721 | 2018-09-05 16:01:12 | 25192 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Exploitation of bony fishes resources started on 12 October 2005 and finished on 9 April 2006 in 2005-2006. 142 beach seines caught about 14333.4 tons of bony fishes by 47101 hauling. The total catch was estimated 21844.7 tones (Includes illegal fishery). Kutum, mullets and common carp comprised more than 97 percent of total catch. Length classes 39-40, 31-32 and 40-41 cm predominated for kutum, golden grey mullet and common carp, respectively. Age groups 3 to 5 year comprised 84.2, 74.8 and 83.7 percent for Kutum, golden grey mullet and common carp, respectively and age group 4 year was dominant with 42.0, 35.9 and 43.0 percent, respectively. K value and L_∞ calculated 0.26 (/year) and 58.3 cm for Kutum and 0.15 (/year) and 61.5 cm for golden grey mullet, respectively. The total biomass and MSY estimated about 24733.7 and 8550.4 tones for kutum and about 16948.0 and 4999.0 tones for golden grey mullet, respectively. Exploitation rate (E) calculated 0.71 and 0.70 for Kutum and golden grey mullet, respectively. In 2006-2007, the exploitation of bony fishes resources started on 12 October 2006 and finished on 7 April 2007 in 2006-2007. 134 beach seines caught about 14120.0 tons of bony fishes by 48470 hauling. The total catch was estimated 23801.8 tones (Includes illegal fishery). Kutum, mullets and common carp comprised more than 98.5 percent of total catch. Length classes 39-40 and 38-39 cm predominated for kutum and common carp, respectively and length classes 27-28 and 29-30 cm predominated for golden grey mullet. Age groups 3 to 5 year comprised 80.2 and 71.8 percent for kutum and golden grey mullet, respectively and age groups 4 to 6 year comprised 71.8 percent for common carp. Age group 3, 4 and 5 year was dominant with 35.5, 32.1 and 27.1 percent for kutum, golden grey mullet and common carp respectively. K value and L∞ calculated 0.27 (/year) and 60.7 cm for Kutum, 0.2 (/year) and 58.4 cm for golden grey mullet and 0.19 (/year) and 66.7 cm for common carp, respectively. The total biomass and MSY estimated about 46654.9 and 14801.4 tones for Kutum, about 19549.0 and 5748.4 tones for golden grey mullet and about 10584.3 and 2186.0 tones for common carp, respectively. Exploitation rate (E) calculated 0.69, 0.53 and 0.52 for kutum, golden grey mullet and common carp, respectively.
    Keywords: Fisheries ; Iran ; Caspian Sea ; Bony fishes ; Kuttum ; Golden grey mullet ; Growth and mortality parameters ; Biomass ; MSY ; Common carp ; Coastal waters
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  • 26
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    Biological survey on small pelagic fishes (sardine & anchovy) stocks in coastal waters of Hormuzgan province (Qeshm Island & Bandar Lengeh) with emphasis on sea surface temperature, plankton distribution and chlorophyll-a (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25198 | 18721 | 2018-09-05 16:25:43 | 25198 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Investigation on small pelagic fishes in the north of the Persian Gulf (Qeshm Island and Bandar Lengeh) coastal waters during October 2006 to September 2008, illustrated that 6 sardine and 2 anchovy species were locally existed. Sind sardinella (Sardinella sindensis) and Buccaneer anchovy (Encrasicholina punctifer) were dominated in this area. The peak of sexual maturity for Sind sardinella and Buccaneer anchovy occurred in spring and summer respectively. Reproduction period for Sind sardinella was from the middle of winter to late spring, and Buccaneer anchovy encompassed reproduction capacity all the year. The female: male ratio was calculated 1:0.7 and 1:0.9 for Sind sardinella, 1:1.27 and 1:1 for Buccaneer anchovy in Qeshm Island and Bandar lengeh sequentially. The mean of absolute fecundity were estimated 16234 and 16168 for Sind sardinella, 1277 and 1141 for Buccaneer anchovy in Qeshm Island and Bandar Lengeh respectively. L_M50 and L_C50 were calculated and the results showed both species mainly caught before length of maturity, and the mass populations have not sufficient opportunity to reproduction. Both species were planktonivore, theirs food prefect mainly consisted of copepods, naplius and bivalves. Vacuity index indicated both spices were semi-voracious appetite fishes. Based on calculated length-weight relationships in S. sindensis and E. punctifer, they have isometric growth. Growth parameters were estimated, the results illustrated that they were growth fast and short live species, which suggested S. sardinella and E. punctifer have 3 and 2 years maximum life span respectively. The recruitment pattern indicated double recruitment peaks per year in both species. Annually, four cohorts were distinguished in Sind sardinella and 3 cohorts in Buccaneer anchovy. Total mortality (Z), natural mortality (M) and fishing mortality (F) were estimated in both species, and the values of exploitation ratio (0.78 & 0.74) in Sind sardinella and (0.72 & 0.41) in Buccaneer anchovy were reasonable for current fishing effort due their short life span. Analysis of the results showed that CPUE in sardine and anchovy affected by reproduction and feeding processes. Results showed significant correlation between sardine CPUE and Sardine GaSI (P〈0.05, r= 0.499), similarly between anchovy CPUE and anchovy GSI (P〈0.05, r=-0.635). Further, significant correlation between sea surface temperature with sardine CPUE (P〈0.05, r=0.493), phytoplankton distribution (P〈0.01, r=0.560), anchovy GSI (P〈0.05, r=0.526), anchovy GaSI (P〈0.05, r=-0.500) and chlorophyll a (P〈0.01, r=0.780). Phytoplankton distribution with sardine GSI (P〈0.05, r=0.453), zooplankton distribution with anchovy GSI (P〈0.05, r=0.671), and chlorophyll with sardine GSI (P〈0.01, r=0.761) have significant correlation.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Qeshm Island ; Bandar Lengeh ; Sardinella sindensis ; Encrasicholina punctifer ; Reproduction ; Feeding ; Growth and mortality ; Catch per unit effort ; Sea surface temperature ; Chlorophyll a ; Sexual maturity ; Plankton ; Naplius ; CPUE ; GSI ; Sardine ; Anchovy ; Coastal waters ; Surface ; Temperature ; Distribution
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    Biomass estimation, opening and closure of Shrimp (Penaeus semisulcatus) fishery in Bushehr waters (Persian Gulf) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25206 | 18721 | 2018-09-04 08:43:13 | 25206 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: From June 2004 to March 2006, a survey in Iran waters (Bushehr province) has completed. Sampling was accomplished in two area, north and south. In this period 15 cruises achieved in summer and 3 cruises in autumn and winter. In each cruise of north and south area 18 and 30 stations were sampled respectively. Stations row on three depth stratums that is, below 10 m, 10-20 m, and 20-30 m in total area from Bahrekan to Motaf. Some Biological parameters such as sex stages, sex ratio, mean total length, species composition were measured. Duration of shrimp fishing season in years 2004, 2005 and 2006 were 40, 44 and 40 days in summer respectively. In June and august the Catch per Unit Effort (CPUE) in south was more than northern area. CPUE increases in north area especially at the end of summer during fishing season gradually. Computing on Biomass estimation resulted 674, 1024 and 873 ton in years 2004, 2005 and 2006 respectively for all shrimp species (usually tiger shrimp, white shrimp and other). Total commercial landing of shrimp catch in above years were 1602, 1597 and 1110 ton respectively. Percentage of tiger shrimp in commercial landing in above years was 77, 75 and 84 respectively. We found that the least mean length of tiger shrimp was observed in southern area especially from Motaf to Rodmond stations. The schools of prawn penaeus semisulcatus enter to Bushehr waters from southern area that is Motaf region. Other than Motaf; Nakhilu, Rase khan and Rod-mond show same characteristics. Also in this region, density of shrimp increases with depth in most summer cruises. The result from analyses of gonad maturation studies shows the adult and mature females (stages III and IV) of P. semisulcatus accumulate in northern area at the end of autumn. This stock catches in autumn by illegal fishing.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Bushehr province ; Biomass ; Shrimp ; Penaeus semisulcatus ; Fishery ; Green tiger prawn ; Opening season ; Closure season ; Survey ; Sampling ; Sex ratio ; Species ; CPUE ; Illegal fishing ; Parameters
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    Effect of starch utilization on sensory quality of silver carp (Hypophthalmichthys Molitrix) fish ball can (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25217 | 18721 | 2018-09-06 06:02:14 | 25217 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: A variety of products made from fish meat is increasingly being produced in most countries. The availability of low cost ingredients, the use of suitable formulations and modern equipment has made it feasible to produce different products of high nutritious value to satisfy consumer demands. Starch is an ingredient used in most products in the food industry because of its physical characteristics. In the present study fish ball were prepared using starch from two different sources (wheat and potato) either individually or by mixing equal proportions of two sources of starch at a rate of 5, 10 and 15% to 80% ground meat of silver carp. A control group was also tested without adding starch. Results obtained indicate that flavor, odor and texture of the resulting product made with 10% starch were more acceptable as compared to the other trials. Fish ball made with the addition of 15% starch were lighter in color and sticky and loses its strength to form. No significant differences were observed in color, flavor, odor and texture of fish ball in trials containing 10% starch from one individual source (p〉0.05) and the resulting product in these trials were rated higher in organoleptic tests as compared to those containing 5 and 15% starch. Among trials containing two sources of starch, mixed trials with potato and wheat (5% potato + 5% wheat) were rated higher in organoleptic tests as compared to the other trials(p〈0.05).
    Keywords: Fisheries ; Iran ; Silver Carp ; Fish Ball ; Starch ; Sensory quality ; Nutritious ; Hypophthalmichthys Molitrix
    Repository Name: AquaDocs
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    Hygienic monitoring of freshwater crayfish (Astacus leptodactylus) on Aras Lake reservoir (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25615 | 18721 | 2018-10-07 16:19:08 | 25615 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Aras dam reservoir situated in the northwest of Iran, west Azarbaijan province, is the only water resource of Astacus leptodactylus harvest in the country that more than 250tons of this species were exported to different countries all over the world, annually. On the other hand, one of the polices of Iranian Science Fisheries Institute is the release of this species into other water resources in the country and for this purpose, the study of risky diseases such as Crayfish pest (Aphanomysis astasi) and other zoonotic diseases are considered as the research priorities of aquaculture development of the country. This study was carried out to health screening of Astacus leptodactylus at Aras dam reservoir from winter 2013 to fall 2014. In this regard, A total of 394 harvested livefreshwater crayfish Astacus leptodactylus (255males, 139females) weretested. 9 epibionts and parasites peritrich protozoans were identified. From Metazoan parasites group, Branchiobdella kozarovi with incidence rate of (100%) in obtained samples was the only isolated organism from this group that identified up to species level. There was a heavy damage in gills of samples with Aeolosoma hemprichi (Annelid) in winter with90% prevalence. Furthermore, Other Epibiont fouling organisms such as Rotatoria; free living nematods and suctoria were observed in this survey. The fungi study of the lesions and melanized spots of mentioned samples revealed their infection to Penicillium expansum; Aspergillus flavus; Alternaria sp. ; Fusarium sp. and Saprolegnia sp. The results of bacterial study confirmed the presence of pathogen bacteria in Astacus leptodactylus. The most frequency percentage (15.16%) in hepatopancrease were related to Aeromonas hydrophila and the least one (1.37%) were due to Yersinia bacteria. Also, only Aeromonas hydrophila and Staphylococcus aureus were isolated and identified from heamolymph, respectively. The results revealed that the combination of Salmonella typhi, Escherichia coli and Staphylococcus sp. has caused the most infection rate while. Yersinia ruckeri and Salmonella typhi has caused the least infections in Astacus leptodactylus. According to the isolation of 6 bacteria species from hepatopancreas and 2 species from heamplymph , it can be concluded that hepatopancreas enjoyed the higher infection rate compared to haemolymph in the obtained samples.
    Keywords: Ecology ; Iran ; Aras Dam Reservoir ; West Azarbaijan province ; Astacus leptodactylus ; Health screening ; Hygienic ; Freshwater ; Crayfish ; Species ; Fisheries ; Aphanomysis astasi ; Parasites ; Metazoa ; Aeolosoma hemprichi ; Epibiont fouling ; Alternaria sp.
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    Conservation and restoration of Caspian salmon (Salmo trutta caspius) stocks in the southern Caspian (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25617 | 18721 | 2018-10-07 16:24:05 | 25617 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The project is funded by the CASPECO Project which is the Third Phase of the GEF supported project in the Caspian Sea region titled “The Caspian Sea: Restoring Depleted Fisheries and Consolidation of a Permanent Regional Environmental Governance Framework”, and implemented by the Iranian Fisheries Research Organization (IFRO) in partnership with four Coastal Research Centers affiliated to IFRO, Coldwater Fishes Research Centre (CFRC).The project's objective is to improve the conservation and restoration of Caspian Salmon (Salmo trutta caspius) stocks. In accordance with IUCN criteria Caspian Salmon is placed in the red list of endangered fish. In the recent decades the destruction of habitats for juveniles, reduction of genetic diversity and fish immune system were main causes of the Caspian salmon decline. Numbers of public meetings were held with participation of fishing communities’ representatives, experts, relevant local authorities and experts of the IFRO and Iranian Fisheries Organization (IFO), Iran Environment Protection Organization (IEPO), Water Resource Management (Ministry of Energy) and University senior professors, in order to create interaction and understanding of the project objectives. Educational awareness and extension program were conducted with the involvement of fisheries communities, private sector and NGO associations. The results of the project suggests that cross-sectoral coordination for sustainable fisheries can be achieved through building partnerships and enhancing communication between the environment, private, fisheries sectors and academia. Cross-sectoral cooperation through this project improved public awareness on growing risks facing Caspian Salmon from different sources including local sources (illegal fishing and over-fishing, urban wastewater, environment destruction, industrial pollutants, pollution of air and water resources), new emerging and invasive organisms, climate change, implications of the Caspian salmon population decline on economic and social affairs of the people who depend on them for their livelihood and food security and their role in fish stock protection. The project, through its capacity building, extension and educational programs and efforts to link science to management, could translate scientific findings into an action agenda for managers and policy makers that can bring an improvement in the future of the Caspian Sea salmon stock.
    Keywords: Management ; Iran ; Caspian Sea ; Conservation ; Salmo trutta caspius ; Caspian salmon ; Fisheries ; IFRO ; Juvenile ; Genetic diversity ; Immune system ; Illegal fishing ; Pollution
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    The study of feeding, reproduction and biological parameters of kilka fishes in the Iranian waters of the Caspian Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25622 | 18721 | 2018-10-08 05:50:41 | 25622 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The overfishing and changing environmental following the introduction of the comb jelly Mnemiopsis leidyi in the Caspian Sea, the population structure has a strong influence on kilka fishes in the Caspian Sea and therefore to in this investigation which had been done in commercial catch regions (where discharged theirs catch) in three ports Babolsar, Amirabad (in mazandaran) and Anzali (in Guilan), stimated catch and catch per unit effort, the age structur of catch, length- weight relationship, von Bertalanffy growth parameters, condition factor, sex ratios, maturity stags, spawning and feeding. The result shown that catch of kilka in Iranian coastal in 2012 decreased from 24080 ton to 22696 ton in 2013. But CPUE increased was 2.7 ton (Vessel ×Night) and there was no significant changes. Common kilka was the predominant all months of the year, 98.1 and 98.9 percent in 2012 and 2013 respectively. The mean length was 104.4±10.5 and 101.6±11.2 at the same time and range length 92/ 5 – 117/5 mm were the dominant population(about 75%). Relative abundance of fish less than 77.5 mm and more than 127.5 mm is very low. Age abundance during this period have not been substantially changed and always fishes with 3 and 4 year olds had the highest frequency73.6 and 73.5 percent respectively. The parameters of the Von Bertalanffy growth curve were (8.141) 048.1 for common kilka. The instantaneous coefficient of natural mortality (M) was 0.506 yr-1. The instantaneous coefficient of fihing mortality and total mortality were 0.694 yr-1 and 1.2 yr^-1 , respectively. The exploitation rate of common kilka varied during 2012-2013 between 0.41-0.50. The mean condition factor 1.41±0.14 (n=5801) and 1.38±0.16 (n=6754) at the same time respectively. According to statistical analysis Anova oneway were a significant difference between condition factor at the same time . Main prey common kilka was Acartia tonsa accounting for over 80%. It seems Common kilka due to a decrease in the frequency of other zooplankton species depend more than ever on Acartia tonsa and this species is probably a concentration of prey for Common kilka.
    Keywords: Biology ; Fisheries ; Iran ; Caspian Sea ; Mazandaran Province ; Guilan Province ; Anzali ; Babolsar ; Kilka fishes ; Age ; Growth parameters ; Condition factor ; Exploitation rate ; Feeding ; Reproduction ; Overfishing ; Comb jelly ; Mnemiopsis leidyi ; Population ; Sex ratios ; Maturity ; Spawning ; Mortality ; ANOVA ; Acartia tonsa
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    Research of possibility of producing of Ice cream through substituting milk protein with condensed protein (FPC) of silver carp (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25231 | 18721 | 2018-09-06 05:59:12 | 25231 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Fish is a valuable nutritional source witch use of it in daily meal has a beneficial role on nutritional needs supply and also causes mental and physical health especially in people who have protein and food deficiencies. Unfortunately, per capita consumption of sea foods in Iran is 5.5Kg which is very lower than world standards (18 kg). So, study on fish ice cream formulation, by use of fish protein concentrate (FPC) instead of milk protein, had done to make variation in sea foods products and also increase per capita consumption of these kinds of foods. FPC has very high protein concentration and a lot of necessary amino acids like lysine and methionine. Also its protein is very digestible with highly biological value and it's PER in compare with casein PER is high. At first fish protein concentrate type A produced from silver carp in three steps by the extraction with isopropyl alcohol solvent and heat. Microbiological and physicochemical specifications of produced FPC by rules of FDA and FAO were accepted. Finally according to panel test results, substitution of 30 percent of milk with FPC in comparison with 50%, 70% FPC substitution prepared (P〈0/05). Also microbiological and physicochemical specifications of product were tested and results in compare with national standards of Iran were accepted.
    Keywords: Fisheries ; Iran ; Fish ice cream ; Fish Protein Concentrate ; Silver Carp ; Nutritional ; Amino acids
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    Investigation on production frozen minced fish meat and frozen fish ball from Abramis brama (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25239 | 18721 | 2018-09-07 06:54:42 | 25239 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: To study the preparation of frozen minced meat from abramis brama orientalis commonly known as sim from Arras lake and from silver carp cultured in the Azerbaijan province, and later this minced meat converted to fish ball and fish burger, in this process microbial, chemical and organoleptic tests was done on samples for frozen minced meat on Sims fish the TVN was 10.1 in zero phase and 14.1 after three month and peroxide value from 0.9 t0 3.1 at the same duration. But he value was higher when converted to fish ball, TVN ranged from 14 to17.6 and per oxide from 1.1 to 4.7 after three month, the unit for TVN was mg/100gram and peroxide unit meq/1000 gram, the microbial tests was also resulted in an acceptable range, the meat of Sims fish had no significant difference with the silver carp comparatively only the color and the smell of the fish was little different, so we could conclude that we can use Sim fish meat for frozen minced meat product and this can increase the consumption of fish in the region in the future.
    Keywords: Fisheries ; Iran ; Azerbaijan province ; Aras lake ; Minced fish meat ; Frozen fish ball ; Abramis brama ; Silver Carp ; Culture ; Oreganoleptic test ; Samples
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    The effectiveness of artificial reefs for rehabilitation and production of fisheries in Iran (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25250 | 18721 | 2018-09-06 06:29:01 | 25250 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: An artificial Reef is a fabricated, underwater structure, typically built for promoting marine life in areas of generally featureless bottom. Creating artificial reefs began from 2000 in southern provinces in Iran. This study has surveyed about the Bushehr and Khozestan states. The objective is to determine the effectiveness of artificial reefs in attracting and enhancing the production different aquatics through increasing of fish assemblage and fishery. The performance of artificial reefs deployed off the coast of the Persian Gulf in 10 to 15m, was evaluated. The reefs comprised of seven artificial and one control (natural) statistical tests plan in three replicates. Three types of artificial reefs were used in this study. That two were designed reefs and one was not designed or used material. The experimental plan consisted (i) Reef ball (R), designed hemispherical shaped; (ii) Laneh Mahi (L), designed pyramid shaped; (iii) Used material (U); (iv) mixed (RL); (v) mixed (RU); (vi) mixed (LU); (vii) mixed (RLU); and (viii) control site (CS). Trap nets and under-water visual census surveys were adopted for seasonal sampling of fish aggregation. Results of statistical analysis using ANOVA and T-test of the mean Catch per Unit Effort (CPUE) showed significant difference (p〈0.05) in term of computing number of fish for aggregation of fishes. The study has concluded that reef deployments have influenced favorably the fish communities and fish harvests. Therefore, the artificial reefs, especially the mixed RLU, are appropriate tools for future fishing enhancement in the Persian Gulf of Iran.
    Keywords: Aquaculture ; Iran ; Persian Gulf ; Khozestan Province ; Bushehr Province ; Artificial reefs ; Fisheries ; Marine ; Survey ; Hemispherical ; ANOVA ; CPUE ; Underwater structure
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    Feasibility study of Tehran province water resources for fish production – Phase 1: Salehabad Qanat (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25793 | 18721 | 2018-10-13 08:12:04 | 25793 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This feasibility study carried out in response to request of Tehran Province Fisheries Management, in order to Qanat Salehabad water assessment for aquaculture relataed purposes in Tehran Municipality – Regions 19 & 20. During 6 monthes between May – October 2011 in 3 sampling stations by 3 replicates investigations executed. Physic-chemical, Heavy methals, organochloro-organophosphore pesticides and microbial nominated parameters analysed in reference to Iran national and international standards as well, resulted an overall assessment on quality and quantity of Qanat water for aquaculture purposes. Results expressed station 1 in all studied seasons can be develop for fisheries warmwater applications and in cold seasons (September-March) fisheries coldwater relevant activities can be consider. Stations No 2 & 3 known as infeasible for fisheries applications but would be recommend for agriculture rrigation. According to the results, possibility of developing live fish shopping centers (Cold – warmwatetr fishes) between station 1 and before crossing the Qanat flow and Behesht-e-Zahra freeway is considerable, indeed water rights could be negotiate between Tehran Municipality and Tehran province Fisheries Bureo. Also application of feasible anti microbial filters and other minimum limitation parameters control is necessary before leading Qanat water flow into proposed live fish shop. And suitable septic tank is recommended at the outlet of proposed fisheries units. Monitoring of nominated physic-chemical & microbial parameters during operation of fisheries unites highly recommended.
    Keywords: Aquaculture ; Iran ; Tehran province ; Salehabad ; Qanat ; Aquaculture ; Fisheries ; Fish ; Physicochemical ; Heavy metals
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    Regional survey of pesticide residues in fish and fish products: Philippines (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26301 | 23782 | 2019-03-27 05:53:49 | 26301 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Chemistry ; Fisheries ; Philippines ; Pesticides ; Cultured organisms ; Biological sampling ; Fish ; Fishery products ; Quality assurance ; Biochemical analysis ; Lethal limits
    Repository Name: AquaDocs
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    Regional survey of histamine in fish and fish products: Vietnam (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26312 | 23782 | 2019-04-02 01:39:27 | 26312 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Viet Nam ; Histamines ; Fish ; Fishery products ; Biological sampling ; Quality control
    Repository Name: AquaDocs
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    Marine food web dynamics of small-sized pelagic fish in the Caspian Sea (Iranian’s water) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25821 | 18721 | 2018-10-13 10:32:05 | 25821 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: A mass-balance Ecopath model of coastal areas in the Caspian Sea has been constructed for a quantitative description of the trophic structure of the ecosystem. The model is used to estimate the important biological parameters and relationships among the different ecologically important groups. Twenty five species were used in the present analysis. The model is based on the data collected of Kilka fisheries, beach seining (Bony fish fisheries), and set Gillnet (Sturgeon Fisheries) and also dietary information. Total landings along the Iranian portion of southern Caspian coast reached 39647 t, including sturgeon (41 t), kilka (22873 t) and bony fishes (16733 t) in 2014. Two species of kilka (Common kilka and Anchovy) are important commercially in the Caspian Sea, together accounting in the past decade for 〉 60 % of the total catch, as well as being a crucial part of the food chain. The mean average trophic level was estimated at 3.17 by Ecopath software. In this research, the mean level were studied between eight species varied from 2.56 to 4.04, Sander lucioperca occupy the highest and the as vimba vimba was the lowest level. The ranges of total mortality varied from 0.5 to 2.56 per years. The food consumption rate was estimated about 101.56 per year Mixd trophic level index (MTI) showed small pelagic fishes as prey, have crucial role in feeding of pelagic predators population such as invasion of the ctenophore Mnemiopsis leidyi, bream fish and benthic fish such as sturgeon. In general, niche overlap was greater in more species such as Alburnus chalcoides, Rutilus rutilus, Clupeonella cultriventris, Rutilus kutum and M. leidyi who consumed large amounts of plankton. In conclusion small pelagic fish exert a major control on the trophic dynamics of the Caspian Sea ecosystems and constitute midtrophic-level populations.
    Keywords: Ecology ; Fisheries ; Iran ; Caspian Sea ; Trophic level ; Food consumption ; Total mortality ; Interactions ; Marine ; Food ; Food webs ; Pelagic ; Fish
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    A study on fishing status and some reproductive characteristics of Klunzinger’s mullet (Lize klunzingeri) in coastal waters of Khuzestan province (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25845 | 18721 | 2018-10-13 08:35:24 | 25845 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Biological characteristics of Liza klunzingeri were studied in two coastal areas, Sajaphi and Bahrekan, of eastern Khuzestan during March to February 2007. Among total 1880 measured fish specimens, 947 specimens were analyzed. The mean value of Gonado-somatic Index (GSI) for the male and female fish were calculated as 0.96± 1.39 and 3.25 ± 3.26 respectively. The GSI value was highest in November and lowest in July. The mean value of condition factor (K) was 1.25± 0.14 in male and 1.21± 0.15 for female. The highest K value were observed in June and the lowest value in February. The lenght at first maturity regardless of sexuality, was found to be 14.5 cm and the time of spawning based on reproduction pattern were determined in Nov- Dec. The length-weight relationship were calculated as Y=0.024L^2.76 (n=226R2=0.72) for males, Y=0.011L^3.00 (n=444R2= 0.78) for females and Y=0.0208L^2.82 (n=670R2 =0.82) for total fishes and also it’s found significant in level length weight relationship in (P〈0.05). According to biological characteristics and referring to American fisheries society (AFS) indices and Fuzzy logic expert system, Lize klunzingeri is classified as low vulnerable species.
    Keywords: Biology ; Iran ; Khuzestan province ; Sajaphi ; Bahrekan ; Lize klunzinger ; Gonado-somatic Index ; GSI ; Condition factor ; Biological characteristics ; Female ; Male ; Specimens ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 39
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    Analysis of oils: Extraction of lipids (modified Folch's Method) (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26829 | 23782 | 2019-11-19 01:08:33 | 26829 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in lipid extraction from fish using the Modified Folch's Method. Instructions on sample preparation, and the apparatus and reagents needed are presented. Detailed procedures in lipid extraction are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fish inspection ; Fishery industry ; Food technology ; Standards ; Specifications ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-2.1-C-2.2
    Format: 2
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    Analysis of oils: Determination of free fatty acid (FFA) (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26832 | 23782 | 2019-11-19 00:56:39 | 26832 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in determination of free fatty acids (FFA) in fish.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Food technology ; Standards ; Specifications ; Fatty acids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-5.3
    Format: 1
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    Analysis of oils: Preparation of methyl esters by Boron Trifluoride Method (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26838 | 23782 | 2019-11-19 00:36:53 | 26838 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in the preparation of methyl esters by boron trifluoride method in fish. Instructions on sample preparation and the apparatus and reagents needed are presented. Detailed procedures are also provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Food technology ; Standards ; Specifications ; Fish oils ; Fats ; Fatty acids ; Esters ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-11.1-C-11.2
    Format: 2
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    Analysis of oils: Determination of thiobarbituric acid (TBA) number (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26835 | 23782 | 2019-11-19 00:46:29 | 26835 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in the determination of thiobarbituric acid (TBA) number in fish fat. The apparatus and reagents needed are presented. Detailed procedures and calculations are also presented.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Food technology ; Standards ; Specifications ; Fish oils ; Fats ; Fatty acids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-8.1-C-8.3
    Format: 3
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    Analysis of oils: Determination of the degree of lipid oxidation by gas chromatography (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26837 | 23782 | 2019-11-19 00:39:35 | 26837 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in the determination of the degree of lipid oxidation by gas chromatography. Instructions on sample preparation and the detailed procedures and calculation are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Food technology ; Standards ; Specifications ; Lipids ; Fats ; Fatty acids ; Oxidation ; Chromatographic techniques
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-10.1
    Format: 1
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    Analysis of additives: Determination of monosodium L-glutamate (MSG) content in fish jelly products (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26840 | 23782 | 2019-11-15 07:59:29 | 26840 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in lipid determination of monosodium L-glutamate (MSG) content in fish jelly products. Instructions on sample preparation and the reagents needed are presented. Detailed procedures calculation are also provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Additives ; Food additives ; Food
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: D-2.1-D-2.3
    Format: 3
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    Analysis of additives: Determination of sugar (sucrose) by Somogyi's Method (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26841 | 23782 | 2019-11-15 07:56:22 | 26841 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in the determination of sugar (sucrose) in fish product by Somogyi's method. Instructions for sample preparation and the reagents needed are presented. Detailed procedures in the determination of the sugar in a sample are provided.
    Keywords: Chemistry ; Fisheries ; Fishery industry ; Food technology ; Standards ; Specifications ; Saccharides ; Products
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: D-3.1-D-3.4
    Format: 4
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    Microbiological procedure: Aerobic plate count (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26846 | 23782 | 2019-11-15 07:46:46 | 26846 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The aerobic plate count provides an estimate of the number of viable microorganisms in the food according to the medium used and the time and temperature incubation. Presented in the paper is the aerobic plate count procedure using the spread plate method. The culture media, apparatus, sample preparation, and the detailed procedures and the calculation of aerobic plate count are also provided in the paper.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: E-2.1-E-2.3
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    Microbiological procedure: Handling of food samples (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26845 | 23782 | 2019-11-15 07:48:51 | 26845 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Proper handling of samples is presented in the paper. Specifically, the procedures in the proper collection, transport, and storage of samples are presented. Moreover, the procedures of monitoring of the condition of samples in a container, and thawing of frozen samples are also provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Fish handling ; Samples ; Sample contamination ; Sample storage
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: E-1.1
    Format: 1
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    Present status of fish processing activities in Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26858 | 23782 | 2019-11-05 05:19:43 | 26858 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: An account is given of the fish processing industry of Malaysia; products consist of dried fish, fish crackers, shrimp past, fermented fish, fish satay, canned tuna/sardine, frozen prawn/fish/squid, and fish meal. Problems faced by the industry and the role of government, statutory boards and other institutions in upgrading the industry are examined.
    Keywords: Fisheries ; Fishery development ; Food technology ; Fishery industry ; Processing fishery products ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 14-16
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    Analysis of additives: Semi-quantitative analysis of boric acid and borates in meat and meat products (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26844 | 23782 | 2019-11-15 07:51:20 | 26844 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Boric acid and borates were commonly used as preservatives. It acts as an antimicrobial agent; however it is not permitted in the fishery products. The paper provides the methodology in the determination of boric acid and borates in fishery products. Instruction for sample preparation and the reagents needed are presented. Detailed procedures in the determination of boric acid and borates in a sample are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Additives ; Food additives ; Borate minerals
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: D-6.1-D-6.2
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    Microbiological procedure: Staphylococcus aureus (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26849 | 23782 | 2019-11-15 07:41:06 | 26849 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Staphylococcus aureus is a common organism on the skin and in the nasal passages of approximately 50% of the population. Heat-treated seafood may become contaminated with this organism by poor handling, then storage at improper temperatures allows the organism to multiply and produce its toxin. This type of food poisoning may be avoided by practicing strict personal hygiene, thorough cleaning and disinfection of equipment, and storage of susceptible food at temperatures below 10°C or above 60°C. Presented in the paper is the methodology of determining S. aureus in fish and fishery products.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms ; Pathogenic bacteria ; Pathogens ; Health and safety ; Public health ; Microbial contamination ; Staphylococcus aureus
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: E-5.1-E-5.4
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    Problems of post-harvest technology in Southeast Asia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26857 | 23782 | 2019-11-05 05:20:59 | 26857 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Improvement of post-harvest technology in Southeast Asian countries and the various problems involved are discussed, considering the following topics: fresh fish handling; traditional products; fish products for export; utilization of available resources for direct human consumption; and, the role of post-harvest technologies.
    Keywords: Fisheries ; Fish handling ; Food technology ; Quality control ; Fishery products ; South East Asia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 3-8
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    Proceedings of the Twentieth Anniversary Seminar on Development of Fish Products in Southeast Asia, Singapore, 27 - 31 October, 1987 (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26853 | 23782 | 2019-11-05 05:24:40 | 26853 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Abstracts of the various country reports, resource papers and case histories presented at the Seminar are cited individually.
    Keywords: Fisheries ; Food technology ; Fishery products ; Fishery industry ; Fishery technology ; Conferences ; Minced products ; Fermented products ; South East Asia
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 116
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    Development of fish products in Indonesia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26856 | 23782 | 2019-11-05 05:22:21 | 26856 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Details are given of the various processing methods used for fish landed in Indonesia. Data for the period 1983-85 indicate curing to be the most popular method, in particular dry salted and boiled fish. Problems involved in the production of cured products and also frozen and canned products are discussed and the development of new products examined briefly.
    Keywords: Fisheries ; Food technology ; Product development ; Cured products ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 11-13
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    Microbiological procedure: Coliforms and Escherichia coli (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26848 | 23782 | 2019-11-15 07:45:03 | 26848 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Coliforms are Gram-negative, non-sporing, facultatively anaerobic rods which ferment lactose, producing acid and gas within 48 hrs and they belong to the family Enterobacteriaceae. Presented in the paper is the methodology of examining the presence of coliforms and E. coli for fish and fishery products.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms ; Microbial contamination ; Microbiology ; Pathogens ; Escherichia coli
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: E-3.1-E-3.4
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    Microbiological procedure: Faecal streptococci (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26850 | 23782 | 2019-11-15 07:39:11 | 26850 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Streptococci are gram-positive cocci, sometimes coccobacilli, arranged in chains. This group of streptococci resides in the intestine of warm-blooded animals. They are bile resistant and capable of growth at 45°C. Fecal streptococci form part of the microflora of many foods without necessarily indicating poor hygiene. They are found in many fermented foods, such as cheese and raw sausage, and often take part in the fermentation process. However, in meat products which have received a severe heat process, the presence of excess numbers of fecal streptococci indicates unhygienic handling and/or faulty storage. Presented in the paper is the methodology of determining the presence of fecal streptococci in fish and fishery products.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms ; Pathogenic bacteria ; Pathogens ; Health and safety ; Public health ; Microbial contamination
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: E-6.1-E-6.3
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    Microbiological procedure: Salmonellae & Shigella (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26847 | 23782 | 2019-11-15 07:43:06 | 26847 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Salmonella is a gram-negative bacterium of the family Enterobacteriaceae. Salmonella lives in animal and human intestines and is shed through feces, which usually infects humans through contaminated water or food. The paper presents the methodology of determining the presence of Salmonella and Shigella in fish and fishery products.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms ; Pathogenic bacteria ; Pathogens ; Health and safety ; Public health ; Microbial contamination ; Salmonella
    Repository Name: AquaDocs
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    Format: application/pdf
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    The fish processing industry in the Philippines: Status, problems and prospects (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26859 | 23782 | 2019-11-05 05:18:11 | 26859 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: An account is given of the fish processing industry of the Philippines. The various existing post-harvest technologies are described, considering fresh fish handling practices, fish processing technologies, new fish processing methods, and other fishery products and by-products. Problems facing the industry and government programs and projects to help development in the sector are discussed briefly.
    Keywords: Fisheries ; Fishery development ; Food technology ; Fishery industry ; Philippines
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 17-27
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  • 59
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    Fish processing in Singapore (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26860 | 23782 | 2019-11-05 05:15:57 | 26860 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: An account is given of the fish processing industry in Singapore, which produces 4 major groups of fish products, namely frozen fish products, fish jelly products, snack food and seafood delicacies. Problems faced by the industry are examined briefly and government bodies regulating the sector are indicated.
    Keywords: Fisheries ; Fishery development ; Food technology ; Fishery industry ; Processing fishery products ; Singapore
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 28-31
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  • 60
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    Improvement in fisheries post-harvest technology in Thailand (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26861 | 23782 | 2019-11-05 03:32:57 | 26861 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Following a brief account of the fishery industry of Thailand, describing the fishery resources and the utilization of the fish landed, details are given of the fish processing sector. Cold storage and freezing facilities, canneries, processing of traditional products and pre-processing, and fishmeal plants are described. The export of fishery products is also discussed, considering the tuna, cephalopod, shrimp, canned shrimp, canned crabmeat and clam and dried fish. Problems facing the industry include shortage of raw material, quality of fish and fishery products, technology and rejection of Thai fish exports. The role of the government in upgrading the industry and future development prospects are examined briefly.
    Keywords: Fisheries ; Fishery development ; Trade ; Fishery industry ; Processing fishery products ; Thailand
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 32-46
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  • 61
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    Overview of current fish consumption and fish processing in Southeast Asia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26862 | 23782 | 2019-11-05 03:30:34 | 26862 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Following a brief account of the food fish supply in the Southeast Asian region, details are given of per capita fish consumption in the following countries: Brunei, Indonesia, Malaysia, Philippines, Singapore and Thailand. The disposition of the marine fish landed and fish quality improvement are also discussed.
    Keywords: Fisheries ; Fish consumption ; Quality control ; South East Asia
    Repository Name: AquaDocs
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    Format: 59-61
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  • 62
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    General introduction to marine processed products in Japan (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26864 | 23782 | 2019-11-05 03:26:43 | 26864 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The marine fishery catch for Japan in 1984 was over 12 million tonnes; the sardine catch was high, although Alaska pollack showed a decrease. A brief account is given of imports and export, both worldwide and for Japan, examining also factors affecting changes in the Japanese markets for fish and fish products.
    Keywords: Fisheries ; Trade ; Industrial products statistics ; Processed fishery products ; Market research ; Japan
    Repository Name: AquaDocs
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    Format: 63
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    Cryoprotective effects of chemicals on proteins of fish muscle (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26865 | 23782 | 2019-11-05 03:25:17 | 26865 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A review is made of studies conducted on cryoprotectants for use in the frozen storage of processed fishery products, such as surimi. Some 150 compounds were screened for cryoprotective effects on fish actomyosin; the findings of experiments investigating the behaviour of carp actomyosin, and fish myosin, actin and other constituent proteins during frozen storage are described. The mechanism of freeze denaturation and of the effects of cryoprotectants is outlined and the application of cryoprotectants in the development of new fish gel products considered.
    Keywords: Chemistry ; Fisheries ; Food technology ; Product development ; Freezing storage
    Repository Name: AquaDocs
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    Format: 64-67
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    Utilization and post-harvest technology of sardine, in relation to nutrition and health (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26863 | 23782 | 2019-11-05 03:28:23 | 26863 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Fish consumption in Japan is very high compared with other countries; it is approximately 96 g daily per capita and provides a good balance of protein, fats and oils, and carbohydrates. The largest component of the fish catch in Japan is sardine; attempts are being made to produce new products, other than the traditional forms, such as surumi. In fatty sardine fish, the characteristic components include polyunsaturated fatty acids which lower the blood cholesterol levels; in particular eicosapentaenoic acid lowers the incidence of adult diseases such as myocardial infarction.
    Keywords: Fisheries ; Food fish ; Public health ; Japan ; Sardinella
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    A case history of fish jelly product development in Sarawak, Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26866 | 23782 | 2019-11-05 03:20:33 | 26866 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The development of fish jelly processing in Sarawak, Malaysia, a technique first introduced in 1984, is discussed. Socio-economic factors affecting the development of the industry are examined, considering attitudes, preference, and standard of living. The importance of technology transfer in the region as a means of further developing the fish jelly processing industry is stressed.
    Keywords: Fisheries ; Food technology ; Product development ; Sarawak ; Malaysia
    Repository Name: AquaDocs
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    Format: 75-77
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    Effect of trading time on the quality of fish traded at Navotas Fishing Port Complex (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26870 | 23782 | 2019-11-05 03:11:15 | 26870 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The Navotas Fishing Port Complex in Manila Bay, Philippines and its harbour and market operations are described in detail. The findings are presented of an assessment study conducted regarding the fish quality in the trading halls; quality was found to improve with night-time trading as opposed to day-time trading.
    Keywords: Fisheries ; Trade ; Marketing ; Quality control ; Philippines
    Repository Name: AquaDocs
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    Format: 91-94
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    Microbiology in quality control: Cockle depuration in Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26871 | 23782 | 2019-11-05 03:05:49 | 26871 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Development of the cockle industry in Malaysia is discussed, with respect to problems regarding quality control. Activities conducted concerning the establishment of depuration plants to purify the cockles prior to sale are outlined, considering also bacteriological testing to show purification to acceptable limits.
    Keywords: Fisheries ; Self purification ; Seafood ; Quality control ; Cardiidae ; Malaysia
    Repository Name: AquaDocs
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    Format: 95-96
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    Satay fish and other traditional fish products development in Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26869 | 23782 | 2019-11-05 03:14:28 | 26869 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Development activities in the traditional fish processing industry in Malaysia during the past two decades are outlined. Satay fish, keropok, dried/salted fish, and belacan products are detailed.
    Keywords: Fisheries ; Dried products ; Food technology ; Processed fishery products ; Product development ; Malaysia
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    Format: application/pdf
    Format: 87-90
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    Utilization of trawl by-catch for the development of surimi and surimi-based products (1979-1987) (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26867 | 23782 | 2019-11-05 03:18:36 | 26867 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Details are given of research activities conducted by the Marine Fisheries Research Department of Singapore regarding the use of small demersal fish (trawling by-catch) for the production of comminuted products. The production of frozen surimi and fish jelly products are described and technology transfer activities by the Department to the fish processing industry also outlined.
    Keywords: Fisheries ; Minced products ; Food technology ; Product development ; Singapore
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 78-80
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    Inventory of fish products in Southeast Asia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26873 | 23782 | 2019-11-05 03:07:22 | 26873 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The findings are presented of a questionnaire conducted in Southeast Asia regarding fish products available, their quality and constraints to their marketing and promotion. Most quality problems were concentrated in the category of traditional products -- particularly smoked, dried and fermented items. The application of such information is identifying available products and highlighting and overcoming certain problems is considered briefly.
    Keywords: Fisheries ; Quality control ; Processed fishery products ; Market research ; South East Asia
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 99
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    Development of minced fish industry in Thailand (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26868 | 23782 | 2019-11-05 03:16:59 | 26868 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Development in minced fish technology in Thailand has involved the improvement of machinery to replace manpower, the development of new processing techniques and the improved utilization of underutilized species. Socio-economic factors are examined, considering the increase in price of raw material, an increase in employment and consumer benefits. Technology transfer is also outlined.
    Keywords: Fisheries ; Minced products ; Food technology ; Product development ; Thailand
    Repository Name: AquaDocs
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    Format: 81-86
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    Shellfish in Indonesia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26877 | 23782 | 2019-11-05 02:57:47 | 26877 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: An account is given of present shellfish production in Indonesia, indicating the species involved, collection methods, production and value, and utilization.
    Keywords: Fisheries ; Shellfish ; Fishery industry ; Indonesia
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 28-32
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    Occurrences of red tide in Brunei Darussalam and methods of monitoring and surveillance (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26875 | 23782 | 2019-11-05 03:03:18 | 26875 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Details are given of red tides which occurred in Brunei Darussalam, 1976 and 1980. Methods of monitoring are described which included plankton sampling, aerial surveillance and toxicity tests.
    Keywords: Fisheries ; Health ; Toxicity tests ; Food poisoning ; Red tides ; Public health ; Dangerous organisms ; Brunei Darussalam
    Repository Name: AquaDocs
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    Format: 17-24
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    Fermented fish products in Thailand (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26872 | 23782 | 2019-11-05 03:09:43 | 26872 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Details are given of fermentation processes involved in the production of fermented fish in Thailand, considering in particular conditions to speed up the process and also examining factors which play an important role in determining the aroma, flavor and color of the finished product. The quality of the fermented product depends on the species and quality of the fish used and also the techniques used; good quality products result if the proportion of salt to fish is 1:2 and the temperature for incubation 25-30°C.
    Keywords: Fisheries ; Fermented products ; Food technology ; Quality control ; Thailand
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 97-98
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    Toxic red tides and shellfish toxicity in Southeast Asia: Proceedings of a consultative meeting held in Singapore 11-14 September 1984 (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26874 | 23782 | 2019-11-05 02:41:48 | 26874 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The occurrence of toxic red tides and paralytic shellfish poisoning (PSP) have become more frequent in Southeast Asian waters in recent years. A consultative meeting was organized by the Southeast Asian Fisheries Development Center (SEAFDEC) and the International Development Research Centre (IDRC) of Canada on 11-14 September 1984 to review the status of shellfish toxicity in Southeast Asia and discuss ways and means for its improved study and control. It was attended by 28 officials and researchers from Brunei Darussalam, Canada, Indonesia, Japan, Malaysia, Philippines, Singapore, and Thailand, including participants from the International Center for Living Aquatic Resource Management, IDRC and SEAFDEC. This volume resulted from the meeting and provides, for the first time, a review of past problems and current research on the subject. It includes edited papers, recommendations and conclusions of the meeting. The papers describe the background related to PSP and red tide in the region as well as the measures taken to protect consumers. Also included are resource papers outlining conditions in Canada and Japan and the protective measures which have been adopted by the two countries.
    Keywords: Fisheries ; Health ; Conferences ; Fish poisoning ; Red tides ; Shellfish ; Dangerous organisms ; South East Asia
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 133
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    Distribution of dinoflagellates at Jakarta Bay, Taman Jaya, Banten, and Benoa Bay, Bali: A report of an incident of fish poisoning at eastern Nusa Tenggara (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26876 | 23782 | 2019-11-05 03:00:12 | 26876 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A description is given of an incident of fish poisoning in East Nusa Tenggana in November 1983, which resulted from a red tide. Sampling studies were made to investigate the distribution of dinoflagellates in Jakarta Bay, Taman Jaya, Banten, and Benoa Bay, Bali. Four genera were observed: Noctiluca, Ceratium, Dinophysis and Peridinium.
    Keywords: Fisheries ; Health ; Fish kill ; Red tides ; Public health ; Dangerous organisms ; Indonesia
    Repository Name: AquaDocs
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    Format: 25-27
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    Status of shellfish toxicity and related problems in Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26878 | 23782 | 2019-11-05 02:56:01 | 26878 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A brief review is made of the current status regarding shellfish toxicity and red tide occurrence in Malaysia.
    Keywords: Fisheries ; Health ; Toxicity ; Shellfish ; Red tides ; Public health ; Dangerous organisms ; Malaysia
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 33-34
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    Lethal effect of paralytic shellfish poison (PSP) from Perna viridis, with notes on the distribution of Pyrodinium bahamense var. compressa during a red tide in the Philippines (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26880 | 23782 | 2019-11-05 02:52:29 | 26880 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A study was conducted to determine the potency of the dinoflagellate toxin accumulated in green mussels, Perna viridis, in the Philippines. The results are also presented of a plankton survey undertaken in order to study the distribution and abundance of the red tide causing alga, Pyrodinium bahamense var. compressa.
    Keywords: Fisheries ; Health ; Biological poisons ; Shellfish ; Toxicity tests ; Red tides ; Bioaccumulation ; Public health ; Dangerous organisms ; Philippines ; Perna viridis
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 43-51
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    Shellfish poisoning in association with the occurrence of potentially toxic dinoflagellates in the Gulf of Thailand (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26884 | 23782 | 2019-11-05 02:26:02 | 26884 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A study was conducted to detect the causative organisms of paralytic shellfish poisoning in Thailand waters and to observe the occurrence of the toxic bloom and red tides in the toxic shellfish beds.
    Keywords: Fisheries ; Health ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Medicine ; Gulf of Thailand
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 87-89
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    Detoxification of Pyrodinium-generated paralytic shellfish poisoning toxin in Perna viridis from Western Samar, Philippines (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26882 | 23782 | 2019-11-05 02:34:08 | 26882 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The results are presented of procedures for the detoxification of paralytic shellfish poisoning toxin using ozone, chlorine and PVP-iodine. Findings indicate ozone and PVP-iodine to effectively inactivate the toxins isolated from Perna viridis; however, further investigations are recommended.
    Keywords: Fisheries ; Health ; Biological poisons ; Red tides ; Public health ; Philippines ; Pyrodinium ; Perna viridis
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 80-85
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  • 81
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    Indo-Pacific toxic red-tide occurrences, 1972-1984 (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26886 | 23782 | 2019-11-05 02:20:40 | 26886 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A brief review is made of the incidences of red tides and paralytic shellfish poisoning in the Indo-Pacific region during the period 1972-84, indicating the organisms involved in the toxicity.
    Keywords: Fisheries ; Health ; Biological poisons ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Indo Pacific Ocean
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 92-102
    Format: 11
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  • 82
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    Shellfish poisoning in Japanese waters (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26887 | 23782 | 2019-11-05 02:16:53 | 26887 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Under the supervision of the Fisheries Agency, each prefectural government has the responsibility of carrying out monitoring programs. Although some problems exist, monitoring operations have been proceeding successfully. Investigations concerning various aspects of shellfish poisoning are being conducted by 6 national institutions, 15 universities, and about 30 fisheries laboratories. Because shellfish poisoning is a kind of natural phenomenon, the only defense is the establishment of precise monitoring techniques to reduce damages. Efforts to improve monitoring, however, need to be carried out through fundamental research.
    Keywords: Fisheries ; Health ; Monitoring ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Japan
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 105-109
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    A summary of paralytic shellfish poisoning in Canada (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26888 | 23782 | 2019-11-05 02:16:11 | 26888 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Paralytic shellfish poisoning occurs along both the east and west coasts of Canada. Since 1973 there have been more than 300 documented cases of paralytic shellfish poisoning, resulting in about 35 deaths. Causative dinoflagellates include Gonyaulax catenella, G. acatenella and G. excavata. Details are given of shellfish contamination, toxic blooms patterns, toxicity monitoring, impact on shellfish industry and detoxification.
    Keywords: Fisheries ; Health ; Historical account ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Canada ; Gonyaulax
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 110-113
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    Status of shellfish toxicity in Singapore (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26883 | 23782 | 2019-11-05 02:28:34 | 26883 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: No incidence of shellfish toxicity related to red tides has been recorded in Singapore to date. Only one species of dinoflagellate, Cochlodinium catenatum, has been found dominant in some of the phytoplankton blooms reported. Monitoring is regularly carried out in the waters along Johore Strait for paralytic shellfish poisoning on a fortnightly basis.
    Keywords: Fisheries ; Health ; Shellfish ; Quality assurance ; Red tides ; Singapore
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    Thalassoma lunare (Linnaeus, 1758) (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21097 | 17408 | 2017-04-27 06:20:06 | 21097 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-14
    Description: Thalassoma lunare is also named the Moon Wrasse because of its yellow caudal fin shapes like crescent moon with long upper and lower lobes. It is an inhabitant of coral reefs and surrounding areas at depths from 1 to 20. T. lunare is the most abundant wrasse species in the Persian Gulf. This species can reach 16 cm in total length in Iran, Persian Gulf, Kish Island. Moon wrasses are active fish, said to be moving all day long. They are also territorial, nipping, chasing, and otherwise harassing fish that get in their way. Being diurnal, wrasses have strong vision, although they also have a decent sense of smell. At night, they rest in niches often under rocks or other such structures. If needed, a moon wrasse may dig out a space under a rock by repeatedly swimming through it until it fits without struggle. They are protogynous hermaphrodites, all starting off as females and changing to males, a process which, for the moon wrasse, takes only 10 days. Some moon wrasses live in groups consisted of a dominant male, and a "harem" of about a dozen other wrasses, some female and some male. The alpha male is more brightly colored, and at every low tide hour, changes from green to blue, and goes into a show of attacking and nipping all the other wrasses. This is his way of showing his dominance to the rest of the males and keeping the females in check. During breeding season and before high tide, the alpha male turns completely blue, gathers up every single female, and the spawning frenzy begins.
    Keywords: Biology ; Ecology ; Fisheries ; Thalassoma lunare
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    Megalomma vesiculosum (Montagu, 1815) (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21105 | 17408 | 2017-04-27 07:28:58 | 21105 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-14
    Description: Megalomma vesiculosum (Giant Feather Duster Worm) has reported for the first time from Persian Gulf (Iran, Kish Island). M. vesiculosum is a polychaete worm that reaches up to 12 cm in length. It has relatively few (about 50) tentacles, each with a large eyespot at the free end. It creates a long and tough tube, which is mostly encrusted untidily with large shell fragments and small stones. The tube protudes no more than 40-50 mm (in Iran, Kish Island) from coarse sand or muddy gravel at low water and below. The body and crown vary in color from yellowish to a reddish-purple brown and is usually spotted. The Giant Feather Duster Worm is a relative of the garden earthworm. It uses its colorful tentacles to filter the water for food, which includes phytoplankton and bacteria. M. vesiculosum requires a high density of phytoplankton and dissolved particulates to survive in a marine ecosystem. The worm generally buries its tube in the sand and the crown protrudes above to strain the water. If this worm sheds its tentacle crown, it is not getting enough food. It will usually regrow another, smaller than the previous. If this cycle continues, the worm will starve. Members of the class Polychaeta are mostly gonochoric (sexual). Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as ‘epitoky’, wherein a pelagic, reproductive individual, ‘epitoke’, is formed from a benthic, non reproductive individual, ‘atoke’). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.
    Keywords: Biology ; Fisheries ; Megalomma vesiculosum
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    Sabellastarte spectabilis (Grube, 1878) (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21106 | 17408 | 2017-04-27 06:38:05 | 21106 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-14
    Description: Sabellastarte spectabilis is commonly known as the feather duster worm, feather duster or fan worm. It has reported for the first time from Iranian waters (Kish Island) and finding in the intertidal and subtidal reefs. Especially common in sites where phytoplankton is abundant. The worm's body occupies a flexible mucus tube formed by adhesion of silt from the water column. Polychaetes, or marine bristle worms, have elongated bodies divided into many segments. Each segment may bear setae (bristles) and parapodia (paddle-like appendages). Some species live freely, either swimming, crawling or burrowing, and these are known as "errant". Others live permanently in tubes, either calcareous or parchment-like, and these are known as "sedentary". This large worm can reach 80 millimeters in length and 10–12 millimeters in width. It is buff in color with purple specks. It lives in a tough, leathery tube covered with fine mud. The tentacles are striped in dark and pale brown bands and bear neither stylodes nor eye spots. There are two long, slender palps and a four-lobed collar. Cilia on the tentacles cause currents in the water and organic particles are caught as they float past. They are channelled along mucus-filled grooves to the mouth. Larger non-food particles are used for building the tube. The tentacles are also used as gills for gas exchange. This worm can reproduce asexually by fragmentation, and can regenerate body parts after being damaged. Reproduction can also be by sexual means. Most worms are either male or female and the gametes mature in the coelom before being released into the water column. Some specimens, particularly larger ones, have both male and female gametes and a study concluded that this was consistent with sequential hermaphroditism. Fertilization is external, and after a short time in the plankton, the trochophore larvae settle out and grow into adult worms.
    Keywords: Biology ; Fisheries ; Sabellastarte spectabilis
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    Pseudoceros prudhoei (Newman & Cannon, 1994) (2021)
    Iranian Fisheries Science Research Institute
    In:  http://aquaticcommons.org/id/eprint/21107 | 17408 | 2017-04-27 06:39:06 | 21107 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-14
    Description: Pseudoceros prudhoei is usually found on rocky or reef habitats, swimming in open waters or under coral rubble plates, where they find their prey, the ascidians. Maximum length is 5 cm in Persian Gulf (Iran, Kish Island). While some of the free-living flatworms tend to hide under rocks escaping from the sunlight, colorful polyclads usually demonstrate a very conspicuous behavior, swimming through the water column next to coral reefs. These animals actually do not need to avoid predators, because their bright color pattern works as a warning sign about their distastefulness and toxicity. None of the animals had a negative response to the presence of light. When the flashlight was turned on, they started swimming around and exploring the environment and none of the worms hid under the rocks searching for cover. In fact, the light didn’t seem to bother them at all, as some would swim toward it, swim back and settle down at any spot. P. prudhoei is not negatively phototactic and reinforce the function of aposematic coloration in pseudocerotids. P. prudhoei is hermaphrodites with both male and female reproductive systems functional at the same time, and reproduce by internal fertilization.
    Keywords: Biology ; Fisheries ; Pseudoceros prudhoei
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    Stock assessment of the bonyfishes in Mazandaran (2003-2004) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25083 | 18721 | 2018-08-22 07:15:57 | 25083 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Mullet and other bony fishes are caught by beach seine in Iranian waters in Golestan, Mazandaran and Guilan provinces. In this investigation which had conducted in commercial regions during 2003-2004, we estimated catch and CPUE, species composition, length, weight, age of two species of mullet and Salmo trutta caspius; von Bertalanffy growth parameters, mortality, biomass and MSY of Liza aurata. The total recorded catch of mullet was 3870 mt and L. auratapre dominated (98.5% of total catch of mullet). CPUE of two species of mullet; L. aurata and L. salienswere 69.6 and 1.1 mt purse seine, respectively. The catch of Salmo trutta caspius was negligible (about 3.6 mt). Biomass and MSY (maximum sustainable yield) of L. aurata were estimated to be 11019.8 and 3322.6 mt, respectively.
    Keywords: Fisheries ; Iran ; Golestan Province ; Mazandaran Province ; Guilan Province ; Mullet ; Bony Fish ; CPUE ; Species ; Length ; Weight ; Age ; Salmo trutta caspius ; Von Bertalanffy ; Mortality ; Biomass ; Liza aurata ; L.aurata
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    Stock assessment of the bony fishes in Iranian coastal waters of the Caspian Sea (2007-2010) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25316 | 18721 | 2018-09-08 16:49:32 | 25316 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In the years 2007-2007, 2008-2009 and 2009-2010 the exploitation of bony fishes resources (by 131 beach seines) started on 12 October but finished on 9 April, 9 April and 13 April, respectively. During these periods the total catch of bony fishes were 23537.8, 20045.5 and 18664.8 tonnes, respevtively. During these periods, kutum predominated and represented the highest proportion of total catch at 73.1, 74.0 and 66.9% , followed by golden grey mullet at 18.3, 13.9 and 18.7%, respectively. K values calculated 0.22, 0.15 and 0.14 year-1 and L∞ were 66.0, 62.7 and 70.0 cm for kuttum, golden grey mullet and common carp, respectively. The instantaneous coefficient natural mortality were estimated as 0.386 and 0.35 year-1 for kutum and golden grey mullet, respectively. During three periods, the exploitation rates were 0.789, 0.584 and 0.614 for kutum and 0.71, 0.75 and 0.61 for golden grey mullet, respectively. In the years 2007-2007, 2008-2009 and 2009-2010, the total biomass, from the biomass-based cohort analysis were 56600, 62090 and 61590 tonnes for kutum and and MSY estimated about 24733.7 and 8550.4 tones for kuttum and 11040, 11900 and 14460 tonnes for golden grey mullet, respectively. The ABC (acceptable biological catch) were estimated as 8000 and 2200 tonnes.
    Keywords: Fisheries ; Iran ; Bony fishes ; Growth ; Mortality ; Biomass ; Acceptable biological catch ; Kutum ; Golden grey mullet ; Common carp ; Coastal waters
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    Cold pasteurization of rainbow trout fillet (Oncorhynchus mykiss) with gamma rays and shelf life assessment at refrigerated condition (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25320 | 18721 | 2018-09-12 09:47:39 | 25320 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The present study was conducted to evaluate the effect of different doses of gamma rays on shelf life and fatty acids composition of Rainbow trout fillet (Oncorhynchus mykiss) during refrigerating condition. Quality and shelf life of non-irradiated and irradiated (0, 0.75, 1.5, 2.25, 3, 3.75 and 4.5 kGy) Rainbow trout stored at +4 C was investigated by measurement of microbiological, chemical and sensory analysis .Irradiation of fillets was performed by gamma rays from a Co60 source. Microbial counts for non-irradiated trout fillet samples were higher than respective irradiated fish. Total volatile base nitrogen (TVB-N) values was increased from 7 mg/100 g for non-irradiated to 52.7 mg/100 g after 15 days storage at refrigerator, whereas for irradiated fish lower values of 39.4, 37.6, 28.7, 25.6, 24.8 and 23.2 mg/100 g were recorded at 0.75, 1.5, 2.25, 3, 3.75 and 4.5 kGy, respectively (day 15).initial amount of peroxide value in non irradiated sampleswas 0.8 meq/kg and was increased to 7 meq/kg (7 day).Highest amount of peroxide after irradiation process was belonged to samples irradiated by 4.5 kGy (1.5 meq/kg). Also, total viable count of irradiated samples were decreased significantly (p〈0.05). On nutritional aspect, results showed that total saturated fatty acid concentrations increased significantly (p〈0.001) with increasing irradiation dose , so that the control sample and fish muscles that irradiated with 4.5 kGy had the lowest and highest amounts of total saturated fatty acids (20.454 ± 0.011% and 19.228 ± 0.040% , respectively). The amount of total polyunsaturated fatty acids (PUFAs) in irradiated samples were significantly lower than control sample (p〈0.001) and amounts of total monounsaturated (MUFAs) were significantly higher than control samples (p〈0.001). The results were indicated that the highest content of MUFAs and PUFAs were in samples irradiated with 3.75kGy (37.783± 0.092 %) and control samples (37.677± 0.104 %), respectively .The lowest level of MUFAs and PUFAs were in control samples (36.596 ± 0.024%) and 4.5 kGy (36.459 ± 0.047%), respectively. Altogether, results of this study were determined that irradiation treatment changes significantly the fatty acid composition especially polyunsaturated fatty acids in rainbow trout muscle (P〈0.001). Overall, irradiation of fillet by 3.75 kGy had best results on increasing shelf life of fillet at refrigerator (between 11-15 days) and had no advers effect on fatty acid composition of Rainbo trout fillet.
    Keywords: Aquaculture ; Fisheries ; Iran ; Irradiation ; Rainbow trout ; Fillet ; Shelf Life ; Fatty acid ; Refrigerator ; Pasteurization ; Oncorhynchus mykiss ; Gamma Rays ; Samples
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    Planning and establishment of the laboratory information database system for Iranian fisheries research organization (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25328 | 18721 | 2018-09-12 09:49:43 | 25328 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Due to lack of access to comprehensive and up-to-date information regarding equipment, personnel, laboratory services tariffs and chemicals in the laboratories of Iran Fisheries Research Institute and felt the necessity of having this information for optimal management of the laboratories, it was decided with regard to all information needs in this area and using previous experiences in this regard as well as the experiences of other institutions and related organizations at the national (and even international) level, the system would be designed. The main purpose of implementing this plan was to establish and implement a software system based on web technology to create a comprehensive database of the Fisheries Research Institute's laboratories, so that in addition to organizing information, using periodic reports on various related areas a more appropriate monitoring and management system could be applied. Fortunately, after the design and implementation stages, the system in early January 2011 was fully applicable. The main parts of this system include portal; database; advanced data entry, search and reporting capabilities; direct tests order system and discussion forums.
    Keywords: Information Management ; Iran ; Laboratories ; Information Database System ; Fisheries ; Chemical ; Portal ; Iranian Fisheries Research Organization
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    The study of annual cycle of gonads developments and sex steroids of gray mullet, Mugil cephalus in Golestan Province (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25319 | 18721 | 2018-09-11 09:09:09 | 25319 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Grey mullet, Mugil cephalus is one of the most famous and valuable fish on the fisheries and aquaculture industry. This species is the most suitable to introducing the southern, northern and central regions of our country due to high resistant to large variation of water salinity and temperature. On the monthly sampling period biometric data including total length and total weight recorded and length and weight classes for every sex were determined. To understanding of physiological functions and sexual development of reproductive organs, this investigation carried out with Grey mullet imported from Hong Kong by 1993. Findings of this research can be used for management of artificial breeding of this species. Daily variation of pond water temperature was recorded. Sex steroid hormones and other plasma metabolites such as Ca^2+, cholesterol, triglycerides and total proteins were measured by blood sampling. Gonad samples were prepared in order to histological studies. Oocyte growth was studied by measurement of egg diameters. Measured values of cholesterol, triglycerides of blood plasma revealed that these metabolites have seasonal variation and severely deposited on the summer and mobilized on the spawning seasons. Findings of this research suggested that egg diameters, values of sex steroid hormones (estradiol and progesterone) and Calcium concentrations of fish blood plasma shortening increased a long with day length shortening.
    Keywords: Aquaculture ; Iran ; Golestan province ; Mugil cephalus ; Sex steroid hormones ; Plasma metabolites ; Gonads ; Gray mullet ; Mugil cephalus ; Fisheries ; Aquaculture ; Species ; Salinity ; Temperature ; Sampling ; Estradiol ; Progesterone ; Calcium
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    Propagation and stock enhancement of silver pomfret (Pamus argenteus) in the north west of Persian Gulf (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25359 | 18721 | 2018-09-14 07:37:31 | 25359 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This study was conducted in the Persian Gulf (Coastal waters of Khuzestan province) from March 2009 to April 2010. The 237 specimen of Silver pomfert P. argenteus collected. Maximum of mature brooders at Jun and maximum of hatched eggs obtained at same month. Artificial fertilization was successful. Absolut fecundity was between 19000 to 38000.maximum of hatch was 51 percent. Maximum of fertilization was 32 percent and continued development of larvae to 35 days. Average of fertilized eggs was 1.1 mm. newly hatched larvae were 2.2 to 2.4 mm. The all Silver Pomfret larvae were dead at prude 35 days gently. Suppose n enhancement phase wasn't performed.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Khuzestan province ; Artificial reproduction ; Pampus argentus ; Larvae rearing ; Eggs hatch ; Specimen ; Silver pomfert ; P.argenteus ; Mature ; Brooders ; Artificial fertilization ; Fecundity ; Fertilization
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    Evaluation of restocking program in north Alborz (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25353 | 18721 | 2018-09-14 07:27:04 | 25353 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Gillan , Mazandaran and Gorgan provinces have temperate climate, thus they have more potential for aquatic animal culture. There are thousands hectare of lands for Aquaculture and fisheries in adjacent to Caspian Sea in this provinces. These areas (North alborz) have provided a favorable back ground for aquatic animal breeding and stock enhancement of species in the sea. As a result, this investigation executed during two stages (phases). At first stage, the goal of this project included the feasibility study and demonstrating the existing situation of fish stock enhancement activities in North Alborz area and second phase is to survey on distribution, and production activities of stock enhancing hatcheries as well as their constructions, and production time table. Survey was started from 2006 to 2008 by using qestionaries in 7 hatcheries from tree provinces. Results reviled that there are more than 10 species was subjected to restocking .Total releasing was about 300 millions of fry and finger lings in to the Caspian sea.
    Keywords: Management ; Iran ; Caspian Sea ; Guilan Province ; Mazandaran Province ; Gorgan ; North Alborz ; Stock Enhancement ; Broodstock ; Production ; Yield ; Artificial propagation ; Bony fishes ; Sturgeon fishes ; Restocking ; Aquatic ; Culture ; Aquaculure ; Fisheries ; Breeding ; Survey ; Hatcheries ; Fry ; Fingerlings
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    Ecological study on fisheries important rivers and bays in the south part of the Caspian Sea 2nd phase: Gorgan Bay (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25385 | 18721 | 2018-09-18 05:58:09 | 25385 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this study ichthyoplankton, phytoplankton, zooplankton, benthic and hydrochemistry parameters were studied. 9 out of 11 sampling stations were in the Gorgan Bay area and 2 of them were in the mouth of the Bay. Ichthyoplankton survey were carried out in 6 stations and the other surveys such as phytoplankton, etc were done in 11 stations in 2009. Gorgan Bay map and position of sampling sites are given at the end of material and methods section. Biomass and frequency of phytoplankton at different stations, months and seasons were calculated that are presented in Tables 1 to 3. Hydro-chemical parameters such as water temperature, air temperature, visibility, DO, BOD5, pH, Alkalinity (bicarbonate, carbonate and total), Hardness (calcium, magnesium), CL,EC, Salinity, N (nitrate, nitrite, NH_3), Phosphate were measured and results are shown Table 11. Biomass (mgr/m^3) and numbers (ind./m^3) of 47 genus of different phylum of phytoplanktons such as Cyanophyta, Chlorophyta, Pyrophyta, Chrysophyta and Euglenaphyta as well as different phylum of zooplanktons consist of Protozoa, Arthropoda, Rotifera and Cyliophora were estimated. Frequency of phytoplanktons (ind/m^3) was 131.2, 1.6, 65.3, 18.9 and 23.8 million respectively. Furthermore, their biomass was 308.4, 1.9, 1358.9, 295.1 and 124.7 mg/m^3, respectively. The maximum and minimum numbers were observed in Leptolingbaya belonged to Cyanophyta and Diatoms of Chrysophyta 84.3 and 0.025 million (ind/ m^3) respectively. The maximum and minimum biomass was observed in Gyrosigma (Chrysophyta) and Tetradron (Chloropyta), 12317.3 and 0.014 mg/m3 respectively. The average biomass of zooplankton was measured 531.74, 30.77, 225.07, and 96.26 mg/m^3 respectively and the total was attained 883.83 mg/m3 Table 5. The maximum and minimum biomass of all zooplanktons was estimated in November and July, 3446.23 and 6 mg/m^3 respectively. Furthermore, the maximum and minimum numbers of zooplanktons were found in September and July which were 48.4 and 0.002 millions respectively and the average number was 8.4 ind/m^3 Table 4. Also numbers and biomass (gr/m^2) of 11 families of benthos which inhabit Gorgan Bay such as Annelida, Mollusca and Arthropoda were investigated in separated stations and distinctive months. The maximum and minimum biomass of benthos was observed in January (42.91 gr/m^2) and March (0.6428 gr/m^2). The biomass was considerable in April, February, August and December (Tables: 4, 5 and 6).
    Keywords: Ecology ; Iran ; Caspian Sea ; Gorgan Bay ; Ecological study ; Fisheries ; Ichthyoplanktons ; Phytoplankton ; Zooplankton ; Benthic ; Sampling ; Biomass ; Temperature ; Visibility ; pH ; Alkalinity ; Salinity ; Phosphate ; Cyanophyta ; Annelida ; Mollusca
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    The study on fishing and resource management of kilka fisheries within southern Caspian Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25405 | 18721 | 2018-09-20 12:38:52 | 25405 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The project of the Study on fishing and resource management of fisheries within Southern Caspian Sea was conducted on the base of an agreement made between fisheries organization (Shilat) and the Iranian fishery research organization (IFRO) signed in 2010. The study has several phases. The final report of the fishery on fishing and resource management of fisheries within Southern Caspian Sea (Gilan, Mazandaran & Golestan provinces) is consisted of several sections such as: 1- The Survey status of biology and catch of Kilka fishes , Bony fishes and Estrogen fishes and also the status of aquatic resource conservation in the Southern part of Caspian Sea 2- Fishing analysis in the Southern part of Caspian Sea 3- Fisheries development Strategies, policies and plans in the Southern part of Caspian Sea In this survey and library-based study, internal and external environmental factors of shilat activities are considered. Using SWOT analysis method, current situation of fisheries is investigated. In this regard, all fisheries activities were divided into four groups, then, the strengths, weaknesses, opportunities and treats of internal and external environment will be analyzed. A considerable number of tables and matrixes were prepared and policies and strategies as seen of final report were carried out.
    Keywords: Fisheries ; Iran ; Caspian Sea ; Gilan province ; Mazandaran Province ; Golestan Province ; Resource management ; IFRO ; Shilat ; Fishing ; Kilka ; Fisheries ; Survey ; Biology ; Bony fishes ; Estrogen ; Environmental factors
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    Effect of Satureja hortensis extracted oil on Aspergillus flavusin fish feed (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25406 | 18721 | 2018-09-23 15:54:54 | 25406 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In a preliminary study, the antifungal properties of essential oil of Satureja hortensis at different tenderness were tested on potato – dextrose agar (PDA). The fungus Aspergillus flavus PTCC 5006 was isolated from pistachio nut obtained from Rafsanjan area, Iran. Among the essential oil compounds, 500 ppm concentration was completely inhibited Aspergillus flavus growth. After determination of the most effective concentration, it was added to fish feeds compound which inhibited fungal growth and production of aflatoxin. Its concentration was determined as 500 ppm and over of essential oil of Satureja hortensis. The essential oil of Satureja hortensis was analyzed by means of GC-MS and their effective factors were evaluated for fish feeds and their results are shown in tables.
    Keywords: Fisheries ; Iran ; Antifungal properties ; Satureja hortensis ; Aspergillus flavus ; Fish feeds ; Feed ; Fish
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    Analyzing the effects of aquaculture and rebuild aquatics stocks on fisheries development in the Caspian Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25412 | 18721 | 2018-09-23 15:56:29 | 25412 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Using SWOT analysis with traditional matrix and quantitative matrix methods, the strategies to benefit from strengths and opportunities to vanishing weaknesses and decrease of threats for strategic management of aquaculture in Iranian Northern provinces was surveyed. Utilizing researches held in fisheries research centers and existence of aquaculture experts in vicinity, activation of veterinary organization in production and post production, and entering new brood stocks with desirable growth are the main strategies for developing rainbow trout and Chinese carps culture in Iranian Northern provinces. In sturgeon fishes culture, independence of farms from fingerlings produced by governmental complex and diversification the cultured fishes using new species and hybrids can develop this part of aquaculture. Avoiding illegal fishing in sea and rivers, preserving the population of Caspian Sea fishes, entering new fish species which their resources are decreased extremely to breeding and fingerling production cycle, and using pike perch and bream while they migrate to Anzali Lagoon from Caspian Sea, instead of freshwater brood stocks will cause the output of sea enhancement and sea ranching activities to increase, and fisheries return coefficient of these fishes will rise. Using quantitative matrix and scoring method, it was defined that aquaculture in Iranian Northern provinces are extremely approved and acceptable and the score of strengths is more than weaknesses and opportunities more than threats. By using strategic management, these activities can be more developed.
    Keywords: Management ; Iran ; Caspian Sea ; Anzali Lagoon ; SWOT ; Strategic management ; Aquaculture ; Sea enhancement ; Sea ranching ; Traditional matrix ; Quantitative matrix ; Fisheries ; Survey ; Culture ; Species ; Illegal fishing
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    Effect of different heating treatments and kind of filling media on the amounts of some mineral elements (iron, zinc, copper, calcium and sodium) of silver carp (Hypopthalmichthys molitrix) during canning (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25429 | 18721 | 2018-09-23 16:29:13 | 25429 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this study, first, the influence of three precooking methods (steaming, oven-baking and microwave-cooking) on the contents of mineral elements-copper, zinc, iron, calcium and sodium-of silver carp (Hypophthalmichthys molitrix) was evaluated. Determination results of evaluated elements in raw fish and cooked samples were in range 3.05 to 4.19 for copper, 71.45 to 82.85 for zinc, 32.18 to 40.70 for iron, 425.6 to 529.46 and 315.5 to 534.76 for calcium. Results showed different precooking treatments had no significant effects on the amounts of mineral elements such as copper, zinc, calcium and sodium. The Iron content in the samples subjected to microwave cooking increased. With doing multivariate analysis, on comparing the raw and precooked fillets, steam cooking found to be the best precooking method on retain mineral elements. After choosing the best precooking method, for evaluating the influence of different filling media including sunflower oil, soybean oil, olive oil and brine, on the quality of canned silver carp, amounts of mineral elements(copper, zinc, iron, calcium and sodium) and microbial indices(total counts, thermopile count and clostridium) and sensory indices (color, smell, taste and texture) was surveyed. Assessments of microbial indices showed no microbial activity in canned products. After canning amounts of sodium increased in all the treatments. Except for iron, using soybean oil had no significant effect on the contents of other elements. The highest levels of iron and copper were observed in olive oil canned samples sterilized at 130°C. Sensory evaluating showed, kind of filling media had no significant effects on sensory indices such as taste, smell and color of canned samples. The texture of soybean oil canned samples and the quality defects of olive oil and brine canned samples had better condition than other treatments. In the last step, canned silver carp were proceed under three different temperatures (115°C, 120°C and 130°C) with equal lethality value (Fo=7min), then sensory indices and amount of mineral elements were compared. Results showed, the contents of iron, copper, sodium and calcium were changed in soybean oil canned sample. The amounts of copper and sodium in sunflower oil canned sample subjected to different heating regimes showed significant variation. The highest amount of copper was observed in the canned samples subjected to 130°C heating regime. Results showed contents of iron and copper of olive oil canned sample subjected to 120°C and 130°C heating regimes were higher than sample subjected to 115°C heating regime, while the zinc and calcium contents had no variation. In brine canned samples the highest amounts of copper and iron was obtained after sterilization in 120°C. Results of sensory evaluation showed different heating regimes had no significant effects on the indices of taste, smell, and color of products. Doing 130°C heating regime in brine canned samples led to obtain the better tenacity of texture. While this heating regime caused to increase the quality defects of soybean oil canned samples as a result of existence of hard parts of bone.
    Keywords: Chemistry ; Fisheries ; Iran ; Precooking ; Filling media ; Heating regime ; Sterilization ; Silver carp ; Mineral elements ; Hypopthalmichthys molitrix ; Samples ; Sunflower oil ; Soybean oil ; Silver Carp
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