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  • Aquaculture  (490)
  • Fisheries  (305)
  • Iranian Fisheries Science Research Institute  (633)
  • National Fisheries Resources Research Institute (NaFIRRI)  (128)
  • 11
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    The effect of marine fish cage culture on macrobenthos community in Ghazale creek (North west of Persian Gulf) (2018)
    Iranian Fisheries Science Research Institute | Khorramshar, Iran
    Details
    Publication Date: 2021-05-19
    Description: Following of aquaculture activities increasing and important, the evaluation of the effect of this activities on marine ecosystem seem to be necessary. ...
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Fish ; Aquaculture ; Cage culture ; Macrobenthos
    Repository Name: AquaDocs
    Type: Report , Not Known
    Format: 105pp.
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  • 12
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    Survey on health status in aquaculture Sturgeons Centers( Mazandaran, Guilan And Golestan Provinces) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Study of survey health management and diseases in hatcheries and fish farms can help us to knowledge and application control methods such as: prevention, treatment and increase high levels of production in hatchery and farms, finally. This survey carried out from 2005 to 2008 for 4 years in sturgeon hatcheries and farms of Golestan province. Sturgeon fishes include Huso Huso, Ship sturgeon, Acipenser persicus collected and for virology, bacteriology, fungius and hematology examined. Also, physicochemical parameters measured and recorded in different stages of culture. Results of this study showed that all of samples in virology was negative and did not observe any doubetful causes. In bacteriology CFU was variation from 3/9 ×105 to 6/9×10. The most parasites that detected in this survey was Cocolanus espherolanus , Sceria binopsulus semiarmatus and Amphilina fuliacea that separates from Acipenser Percicus, especially. The results about hematology parameters some important hematological indices of ship sturgeon include: The total RBC for female and mail specimens measured as 5.3±1.5 ×105, 4.8±0.5 ×105 per mm 3 respectively. The amount of haematocrit and hemoglobin for female and mail determined: 34.3±2.8, 35±1.4 percent and 10.3±0.9, 8.9±0.8 gr/dl .The MCV: 216.3± 96.2, 736.5± 102.5, MCH: 720.2±309.5, 186±0.7 and MCHC: 30±0.8, 25.5±3.4 percent respectively.The total WBC were (female, male): 21320±1054, 20580±777 per mm 3 and neutrophil: 16.4±2.5, 17±1.4 percent and lymphocyte: 74.4±2.4, 73.5± 0.7 percent and eosinophil: 6±1.4, 6.4±0.5 percent, monocyte: 2.8±0.8, 3.5±0.7 percent. There was not any significant differences (p〉0.05) between mentioned parameters in male and female (students t-test). Also evaluation of hematological parameters in bluga ( Huso huso) include: total RBC were (male , female) 5±0.3 ×105 , 4.9±0.6 ×105 per mm 3 ,respectively and hematocrit: 33.2±6.7 , 35.4±3.4 percent and hemoglobin: 11.2±1.5 , 12.2±1gr/dl and MCV: 669.9±172.2, 723.9±982.4 and MCH: 226.2±42.5, 249.5±35.4 and MCHC: 34.1±2.4, 34.6±3.6 percent respectively. The totals WBC were (male, female): 24800±707.1, 23042±1375.4 per mm 3 and neutrophil: 18.5±0.7, 21.4±1.1 percent and lymphocyte: 73.5±1.4, 68.4±1.1 percent and eosinophil: 5±2.8, 7±1.2 percent and monocyte: 3.5±3.5, 3.2±0.8 percent. According to statistically study the count of lymphocyte had significant difference between male and female fish and this count in male was higher than female. (p≥0.05).
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Physicochemical ; Hematology ; Fish ; Sturgeon ; Huso huso ; Ship ; Acipenser percicus ; Bacteriology ; Parasitology ; Health management ; Diseases ; Survey ; Aquaculture ; Hatcheries ; Samples ; Sceria binopsulus ; Amphilina fuliacea ; Female ; Male
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 395pp.
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  • 13
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    Evaluation Silo (Cylindrical) fish tanks as an applicable method for aquaculture of Rainbow trout (Oncorhynchus mykiss) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This investigation conducted for evaluation Silo (Cylindrical) Fish Tanks as an applicable method for aquaculture of Rainbow trout (Oncorhynchus mykiss). Current research was designed in two practical phases as accidental experiments through 3 treatments and repeats of which stocked by three Rainbow trout (375 gr) densities as 75, 100 and 125 fish/m3 in 9 silo fish tanks (2 m3). For better understandings of the silo performance method, concrete circular fish tanks (similar volume) considered as controls and stocked as similar fish densities as silo tanks. The duration of the first phase of experiment was 150 days. The second phase of the experiment was determined for evaluating two proposed silo type (Inlet and outlet in bottom side / Inlet from bottom and outlet in upper side). In this stage, proposed silos (stocked by fish of 294 gr weigh) tested for rearing trout for 30 days. Water supplied from two surface wells after some aeration operations. Stocked fish were fed by pellets made by Fish Feed Chineh Company (Ltd) in Iran. Feeding operation conducted according to the recognized manuals by consideration of water temperature, fish weight and biomass. Meanwhile, biometry operation conducted in 10 days intervals while fish were anaesthetized. In addition, water quality was determined by daily measurements. According to the results of the first phase of experiment, there were significant variations on Growth rate, survival rate, FCR, FCE and SGR through the cultured organisms in silo tanks compared to the circular tanks. Meanwhile, according the results of an economic study on this survey, the fish culture in silo tanks showed significant economical and profitable in compare to controls. In additions, the second phase of experiment showed better aeration conditions in silo tanks when inlet water supply from bottom side and outlet located in upper side. Because of the fine distribution of fish in silo tanks and more usage of depth by this method, fish culture would be an applicable and profitable technique in narrow lands and slopes through the mountains area. The maximum stocking rate recorded more than 100 Kg fish/m3 in silo tanks.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Practical ; Silo ; Cylindrical ; Aquaculture ; Rainbow trout ; Oncorhynchus mykiss ; Fish ; Feeding ; Temperature ; Weight ; Biomass ; FCR ; FCE ; SGR ; Culture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 73pp.
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  • 14
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    Evaluation of restocking program in north Alborz (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    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 Aquaculure 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 frome 2006 to 2008 by using qestionaries in 7 hatcheries from tree provinces.results revieled 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.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Stock Enhancement ; Broodstock ; Production ; Yield ; Artificial propagation ; Bony fishes ; Sturgeon fishes ; Restocking ; Aquatic ; Culture ; Aquaculure ; Fisheries ; Breeding ; Survey ; Hatcheries ; Fry ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 191pp.
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  • 15
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    A survey on effects of shrimp aquaculture on the coastal waters of Bushehr (Helleh and Mond) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The effects of aquaculture industry on the environment were evaluated by studying the water quality of Bushehr costal water during culture season 2005 and 2006. The variations of selected parameters such as total phosphorus, ammonia, chlorophyll a, pH, salinity and... Were monitored in effluent canal, influent canal and open sea in Helleh and Mond regions as monthly. Following occurrence of White Spot Disease (W.S.D) in the shrimp ponds of Bushehr province, shrimp culture suspended and entrance of effluent waters completely were blocked since August 2005, despite the absence of aquaculture sewage evaluation of environment and sampling were continued. During releasing of sewage of shrimp ponds to the coastal waters of Bushehr in Jun 2005, the average amount of ammonia in Helleh and Mond were obtained to be 0.161 mg/l and 0.194 mg/l, however the average amount of total phosphorus in Helleh and Mond regions were 0.149 mg/l and 0.043 mg/l, respectively. Although effluent water suspension, amount of ammonia and total phosphorus were increased in both region especially in June 2006. Comparing present data in Jun 2005 and recorded data from culture period 1997-2003 with permitable range of municipal and aquaculture waste show that; aquaculture industry on both regions have not had any obvious negative effect on the coastal waters of Bushehr but it seems if other sources of pollutions in the region is not controlled, then the aquaculture industry can contribute to occurrence of environmental problems.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Environmental ; Survey ; Shrimp ; Aquaculture ; Phosphorus ; Ammonia ; Chlorophyll a ; pH ; Salinity ; White spot disease ; Sampling ; Pollution ; Coastal waters
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 73pp.
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  • 16
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    Determination of best condition for fermentation of organic manure for utilization in aquaculture (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In 22 August of 2000 an adequate amount of fresh cow manure was transported form Golshahr Cow Farm and deposited in the experiment site. The transported manure was divided equally between five treatments of siloes, depots without plastic coverage, depots with plastic coverage, barrels and tubes. Deposited manures retained in the treatments till 20 May 2001. During the retention time, sampling from three points of cow farm and other treatments carried out with monthly intervals and samples were analyzed for determination -of Ca, Na, NDF. ADF. crude protein, crude fat, moisture; crude fiber, minerals, dry mater and NFE. Temperature, pH and redox potential were measured in situ and all data were analyzed statistically by SAS general linear models. The results showed that month and treatment exert significant effects (P〈0.01, on the variations of the most measured parameters. Depots with plastic coverage had highest mean temperature and then there were depots without plastic coverage, siloes and barrels, respectively. “The temperature increased significantly in the first month of retention but showed some fluctuations in subsequent 4-5 months and then remained relatively constant till the end of experiment period. Depots without plastic coverage showed highest moisture. Optimum moisture value of 40-50 percent obtained for siloes and depots with plastic coverage. Lowest Ca and highest Na values were measured in fresh manure of the cow farm. In two first month of retention time NDF decreased significantly in most treatment but increased subsequently and reached maximum 'percentages during 5-6th month of retention. In first month of retention ADF showed significant decrease in most of treatments but increased in further months and reached to maximum percentage after 4 month retention. In siloes, depots without plastic coverage, and depots with plastic coverage the percentages of protein and fat reduced significantly in the first month of retention, modified during subsequent 6 months and reach valuable percentages. Depots with plastic coverage showed maximum and most suitable protein and fat percentages of about 9 and 2.75 percent after 6 months retention. The percent of crude fiber decreased to minimum level after 3, 5 and l, retention months in siloes, depots without plastic coverage, and depots with plastic coverage and barrels respectively. Values of surface pH in siloes, depots without plastic coverage vice versa of other parameters were minima of 7.1-7.5 at the beginning of retention time that reached to 7.8-8.4 after 4 retention months. The pH of cow farm mostly was more than other treatments. Amount of redox potential in cow farm, siloes, depots without plastic coverage, depots with plastic coverage and barrels fluctuated between -48 to -109, -84 to -12, -62 to -22, -86 to -30 and -65 to -21 millivolt. The minimum levels were at beginning of period and the maximum levels obtained after 4 months of retention in treatment I and 2, after 3 months in treatments 3 and after 5 months in treatment 4. Therefore with care to extent and terns of parameters changes in variation treatments, depots with plastic coverage can introduce the best retention conditions during 4-6 months for decomposition of organic manure for usage in aquaculture.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Fermentation ; organic manure ; Utilization ; Aquaculture ; Fluctuations ; Temperature
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 74pp.
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  • 17
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    Evaluation of stocking density vannamei shrimp Litopenaeus Vannamei (Boone, 1931) in cultuering with brackish water of Caspian Sea (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Recently, the development of aquaculture has focused on the use of seawater, because of freshwater crisis in the world. Whiteleg shrimp (Litopenaeus Vannamei) is one of the most important species for aquaculture development, because of tolerance and adaptation to different ecological conditions. One of the advantages of species in aquaculture, compatibility status is dense in the rearing period. In this study, the effect of different densities (45/m2 , 50/m2 , 55/m2 and 60/m2 ), of primary stock whiteleg shrimp postlarvae (PL12) on the growth and survival rate were evaluated. Brackish water (10.52±0.43 ppt) was providing from Caspian Sea. The experiments were performed in 12 circular concrete pond with a sandy bed (area: 78m2 ) in four treatments and three replications for each treatment. The experiments performed in a 75-day period. In this study, the water temperature was 27.4±1.79°C. The results showed statistically difference in growth parameters and survival rate among experimental treatments (Duncan test, P〈0.05). Therefore, with high levels of density, has decreased the amount of weight gain and survival rate (SR), specific growth rate (SGR) and average daily growth (ADG). In addition, the treatments were different variations of FCR (P〈0.05) and not depend on the primary stock density of postlarvae. In low density (45/m2 ) were observed the highest growth (SGR=11±0.04 and ADG=0.25±0.01 gr/day/ind.), survival rate and calculate the amount of production per 78m2 equal 43.6±3.3kg (5596±433kg/ha). Therefore, It is possibility that there is commonly increasing primary stocking of density about L. Vannamei postlarvae culture in Iran.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Ecological ; White shrimp ; Litopenaeus vannamei ; Brackish water ; Growth ; Survival ; Aquaculture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 34pp.
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  • 18
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    Water quality Evaluation of Talkheroud for aquaculture activities in Tabriz plain (from Tabriz to Urmia Lake) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Without Abstract.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Water quality ; Evaluation ; Aquaculture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 58pp.
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  • 19
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    A Survey about Existence Currency of Warm Water Fish in Northern Alborz (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Aquaculture is the most important part of Fisheries Organization duties in Iran. During several planning and developing programs, aquaculture productions had a considerable growth. Due to good potential, these productions were higher than the planed one. The North Alborz regions were investigated by four groups of experts. The regions which investigated were including 3 important provinces (e.g. Guillan, Mazandaran and Golestan). The area where investigated was 940 km along with coastal zone of Caspian Sea or 58678 km2 in total. Around 27% of aquaculture production came from this region. However, subdivision of fisheries can play important role in the economics in the region. The fisheries sub-sector has an important role in the economy of the region, and despite the great potential for agriculture and tourist industries in the North Alborz, there is a significant role in the prosperity of the fisheries activities. In the present study shows that Mazandaran and Guillan provinces has more potential in reservoirs and aquaculture production when compared with other provinces. Productions in Mazandaran either in reservoirs were less than Guillan province. Due to lee in reservoirs, Mazandaran had less investment when compared with Guillan province. The figures show that carrying capacity of aquaculture production for 3 provinces (Mazandaran, Guilan and Golestan) was higher than other provinces in the entire country. Due to, large land base, less investment, more interesting of farmers, no needs of complicated technology, farmer would be able to develop reservoirs as consequences to enhance productions. However, developing reservoirs and supporting of it's; can increase the contribution of warm water species in inland water.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Survey ; Existence Currency ; Warm Water ; Fish ; Aquaculture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 138pp.
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  • 20
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    Study on feasibility of live Cobia (Rachycentron canadum) capturing in northern waters of Persian gulf & Oman sea (Hormozgan province) and rearing them to subadult stage in concrete tanks (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In order to obtaine live individuals of cobia ( Rachycentrun canadum ) , coastal waters of Jask, Sirik, Kolahi , Bandar Abbas, Bandar-e Lengeh ,Bandar-e Bostaneh and Abu moosa ,Hormoz and Qeshm Islands have been surveyed from March 2008 to January 2010 in Northern waters of Persian Gulf (Hormozgan province). All in all 60 alive fishes obtained from fishing boats and transferred to Aquaculture Department of Persian Gulf and Oman Sea Ecological Research Institute (PGOSERI), but 50 of them died and only 10 fish survived. They divided in two groups and cultured in separated concrete tanks. Fished were fed with trush fish twice a day at a feeding rate of 4-5 percent of body weight. Culturing period last about 6 months. All the fishes gradualy died through the culturing period. Average of specific growth rate in group 1 and 2 were about 0/49 and 0/77 respectively. The weight gain for group 1 (WG) was %75 for 75 days of calturing time and % 142 for 190 days of culturing time while for group 2 it was %31 for 54 days of culturing time and % 75 for 190 days . Average weight of fishes belong to group 1 reached from 950(g) to 2150 (g) during 6 months, while group 2 reached from 872(g) to 1271/5 (g) in 3 months. Feed conversion rate (FCR) for group 1 and 2 were respectively about 6.9 and 6.8. With regard to cost of trash fish (about 2000 Rials per kilogram trash fish) the per unit feed cost of cobia production were 13613 and 13730 Iranian Rials per kilogram, respectively for group 1 and group 2. Results revealed that obtaining live individuals of cobia is very difficult and also cobia didn t grow well in concrete tanks but if we have better coopreration of local fishermen and also provide some Equipment such as cages in order to rear cobia in the sea , it is possible to achive more succes and obtaining better results .
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Ecological ; Rachycentron canadum ; Cobia culture ; Specific growth rate ; SGR ; Alive capture ; Survey ; Aquaculture ; Concrete tanks ; Fish ; Coastal waters ; Aquaculture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 50pp.
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