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  • Aquaculture  (7)
  • Iranian Fisheries Science Research Institute  (7)
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  • Iranian Fisheries Science Research Institute  (7)
  • Tehran, Iran  (7)
Years
  • 1
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    Limnological study of Taham lake in Zanjan province in order to assess aquaculture possibility (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The Taham dam reservoir has been established in order to provide drinking water of Zanjan population as far as 15 km in a mountain region at 1900 meter altitude with a 317 ha surface area. This study was conducted on biotic and a biotic factors in order to recognize of aquaculture possibility within drinking considerations. The results showed the less abundance of phytoplankton with 2 million/l. where abundant of zooplankton was 266 /l. Bacillariophyta and Chlorophyta belong to phytoplankton and Rotatoria belong to zooplankton were dominated among identified plankton phylum. There were identified 45 and 32 genus of phytoplankton and zooplankton respectively. There were identified 5 groups of benthos that Tubificidae, Hirudina had the most frequency, and the biomass of benthos was varied from 1.1 to 23.7 g /m2. The ichtiology survey showed presence of 6 species in the lake that Alburnoides bipunctatus, Capoeta capoeta, , Leuciscus cephalus were the most abundance in the catch. L. cephalus was recorded with the maximum size of 870 g while the most frequent weight class was 150 450 g for C. capoeta,, L. cephalus . Diet survey showed the adequate feeding of fishes in lake also the observation of leech in trout guts was very considerable. The reproduction study displayed that a partial of matured fishes were succeed in breeding. Leuciscus cephalus have been known as a typical species with commercial size and high abundance which will be needed a fisheries management in Taham Lake to sustainable exploitation. The hidrochemical results indicated low nutrients values while total nitrogen was varied from 0.32 to 0.61 mg/l. and the Chl-a was varied from 7.9 to 25.9 μg/l.. The oxygen amount was 4.5 to 8.4 mg/l even in 65 meter depths. Total hardness average was about 149 mg/l where the Ca and Mn were measured in a low values. Trophic model in Taham lake showed the early stage of mesotrophy while other lakes and wetlands in north of Iran had been progressed in mesotrophic level.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Hidrochemical ; Limnological ; Aquaculture ; Population ; Biotic ; Phytoplankton ; Zooplankton ; l. Bacillariophyta ; Chlorophyta ; Rotatoria ; Phylum ; Biomass ; Alburnoides bipunctatus ; Capoeta capoeta ; C. capoeta ; L. cephalus
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 81pp.
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  • 2
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    Limnological study of Taham Lake in Zanjan Province in order to assess aquaculture possibility (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25273 | 18721 | 2018-09-07 08:29:11 | 25273 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The Taham dam reservoir has been established in order to provide drinking water of Zanjan population as far as 15 km in a mountain region at 1900 meter altitude with a 317 ha surface area. This study was conducted on biotic and a biotic factors in order to recognize of aquaculture possibility within drinking considerations. The results showed the less abundance of phytoplankton with 2 million/l. where abundant of zooplankton was 266 /l. Bacillariophyta and Chlorophyta belong to phytoplankton and Rotatoria belong to zooplankton were dominated among identified plankton phylum. There were identified 45 and 32 genus of phytoplankton and zooplankton respectively. There were identified 5 groups of benthos that Tubificidae, Hirudina had the most frequency, and the biomass of benthos was varied from 1.1 to 23.7 g /m^2. The ichtiology survey showed presence of 6 species in the lake that Alburnoides bipunctatus, Capoeta capoeta, Leuciscus cephalus were the most abundance in the catch. L. cephalus was recorded with the maximum size of 870 g while the most frequent weight class was 150 450 g for C. capoeta,, L. cephalus . Diet survey showed the adequate feeding of fishes in lake also the observation of leech in trout guts was very considerable. The reproduction study displayed that a partial of matured fishes were succeed in breeding. Leuciscus cephalus have been known as a typical species with commercial size and high abundance which will be needed a fisheries management in Taham Lake to sustainable exploitation. The hidrochemical results indicated low nutrients values while total nitrogen was varied from 0.32 to 0.61 mg/l. and the Chl-a was varied from 7.9 to 25.9 μg/l. The oxygen amount was 4.5 to 8.4 mg/l even in 65 meter depths. Total hardness average was about 149 mg/l where the Ca and Mn were measured in a low values. Trophic model in Taham lake showed the early stage of mesotrophy while other lakes and wetlands in north of Iran had been progressed in mesotrophic level.
    Keywords: Limnology ; Iran ; Zanjan province ; Taham lake ; Limnological ; Aquaculture ; Population ; Biotic ; Phytoplankton ; Zooplankton ; l. Bacillariophyta ; Chlorophyta ; Rotatoria ; Phylum ; Biomass ; Alburnoides bipunctatus ; Capoeta capoeta ; C. capoeta ; L. cephalus
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 81
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  • 3
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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
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 68
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  • 4
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    Adaptation and use of amphipoda in fish culture ponds in order to increase fish production (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25201 | 18721 | 2018-09-05 16:03:37 | 25201 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Use and enrichment of live food resource in fish farms have been interested and highly demanded. Crustacean are one of the important groups. The Pontogammarus maeoticus dominated in southern Caspian Sea shore with a high abundance. This study was designed in order to adaptation and usage of amphipoda in fish culture ponds. The first part have been surveyed the laboratory experiments including of; to increasing and developing of P.maeoticus in 200 litter container, the effects of salinity on growth and survival of amphipods in many aquariums, the culture of common carp with amphipods and growth determination of them. Chemical composition analysis of P.maeoticus and carps fed by amphipods in compare to cultured carps from ordinary ponds. Due to concern about common healthy the heavy metal concentration has been measured in P. maeoticus, carp which were fed by amphipods and the cultured carps in earth ponds. In second phase; the adaptation of two amphipods species, P. maeoticus and Obesogammarus acuminatus was studied in fish ponds where some cages with sandy soft substrate had been provided for amphipoda replacement. Also a small surface of ponds surrounded by net and covered by Azola plant, a habitat suitable for to putting of O. acuminatus. Production of amphipoda had not the successfully results in large tanks. Aquariums with Caspian Sea water had the prosper results where the specimens were breeding and developing properly, even though in some aquarium with freshwater increased the amphipods number. The chemical composition had not significant difference between two kind of cultured carps while the organic component in amphipoda had a high quality. The better quality of cultured carp by amphipod diet have been confirmed by organoleptic test. The results of heavy metal measurement in amphipoda showed a high concentration which some of them were transmitted to cultured carps. Result of amphipoda replacement in cage was not satisfy and the specimens were died after some days. According to hydro-chemical parameters the oxygen poorness and high trophy levels were the affective factor to abolish of specimens in cages. It seems that there are many type of P.maeoticus that can be adapted in different salinities. The molecular differentiation should be investigated to choose the suitable type of this spices for utilization in freshwater fish ponds. In other hand it can be used in fish culture ponds that will be supplied by brackish water.
    Keywords: Aquaculture ; Iran ; Caspian Sea ; Adaptation ; Amphipoda ; Fish ; Culture ; Ponds ; Enrichment ; Pontogammarus maeoticus ; Amphipoda ; Survey ; P.maeoticus ; Common carp ; O. acuminatus ; Oxygen ; Specimens ; Brackish water
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 71
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  • 5
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    Biological survey of Caspian kutum (Rutilus kutum) released fingerlings in Sefidroud River (Guilan Province) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25612 | 18721 | 2018-10-07 16:15:05 | 25612 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Kutum fish (Rutilus kutum) is an anadromous cyprinid species that spawns in adjusted rivers to the Caspian Sea. Many million fingerlings were artificially produced and annually released in these rivers specifically in Sefidrud River by Iranian Fisheries Organization. In this study were estimated the staying period of Kutum fingerlings in Sefidrud River and its diet and growth. A small piece of the caudal fin was cut as a tagging method. About 50000 and 5200 individuals were marked during July and September 2013, respectively. The marked fish had an average total length 53.2±5.6 mm and body weight 1.11±0.26 g and were released in river around two kilometers of the estuary. The sampling of fishes had been earlier started from Feb. 2012 and continued until Feb. 2013 at five stations. Four stations were along river from three Kilometer of estuary to estuary and one station was in right side of estuary in the sea coast. The results showed that marked samples after releasing time were distributed in all studied area from 3 kilometers of estuary to estuary but they migrate mainly toward Caspian Sea in a short time. However the marked samples were observed in estuary and the sea coast after 6 and 24 hours of their releasing time, respectively, Kutum fingerlings remained in Sefidrud river ecosystem in a longer time, at least until end of our sampling period i.e. 105 days. The coefficient of vacuity index of the natural feeding study was 0.0, 49.0 and 30.6 % for phytoplankton, zooplankton and benthos, respectively. The average of GastroSomatic index, intensity of fullness and condition factor were calculated 6.30±3.25, 174.6±153.2 and 0.92±0.09, respectively. A temporal and spatial variation on main food items were observed in gut content of fish fingerlings from different locations and seasons. Gut contents were generally included 59 genera of phytoplankton, 15 groups of zooplankton and 10 groups of benthos. Nitzschia, Navicula and Synedra were dominated among phytoplankton genera with 45.83, 18.02 and 15.99 %, respectively. Among zooplankton groups; the Rotaria, Moeina and Difflugia were dominated with 22.30, 20.86 and 15.83%, respectively. Chironomidae and Gammaridae were the main food items among fed benthic animals with 83.67 and 11.15%, respectively. Furthermore 48 phytoplankton genera, 32 zooplankton genera and 6 benthic families were identified in ecosystem of Sefidrud river. Bacillariophyta phylum (with 23 genus), Rotatoria (with17 genus) and Chironomidae family were dominated in each mentioned groups, respectively. It is concluded that the Kutum fingerlings stay in Sefidrud River for a long time, although most of them migrate to Caspian Sea during first month after releasing. However dietary indices were normal in studied samples, the condition factor index seems to be low.
    Keywords: Aquaculture ; Iran ; Caspian Sea ; Rutilus kutum ; Fingerlings ; Kutum ; Fish ; Rotaria ; Moeina ; Difflugia ; Phytoplankton
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 160
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  • 6
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    The study of establishment of rainbow trout culture and hatchery farms on Zayanderood’s River region in Caharmahal and Bakhtiyari Province (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25620 | 18721 | 2018-10-14 02:36:27 | 25620 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The aim of this study was to find the best location for establishment of rainbow trout culture and hatcheries farms on Zayanderood’s river region in Charmahal and Bakhtiyari province. This survey carried out over ten station along Zayanderood’s river. The result of physical and chemical analysis showd that the annual average of air temperature varied from 9.5oC - 10oC where the pH annual average value were between 7.5 and 8.8. the dissolve oxygen concentration in stations except in rainbow trout farm effluent were above 10 mg/l. the other chemical , pollutant as well as pesticides levels were under the limiting concentration for rainbow trout culture and Hatcheries activity. The plankton survey showed that the Bacillurophyta were the dominant group of phytoplankton where protozoa constituted the most abundant group of zooplankton the Benthic organisms sensitive to pollutant in particular Epirus were dominant group in all stations. In regard to fishes presence in river, five species of Ciprinidae, one species from Balitoridae and one species from salmonidae families were identified. The capacity for development of rainbow trout culture for tow phase period in Zayanderood’s river region with respect to self purification potential (self purification potential were determined from the oxidation of the effluent of the only active trout farm of the river region), minimum of 10 L/s water requirement for production of trout in concrete canal and pond system and 1 L/S water need for production in semi circular closed system were estimated to be 5202 metric tons.
    Keywords: Aquaculture ; Iran ; Caharmahal and Bakhtiyari province ; Positioning ; Rainbow trout ; Self purification ; Culture ; Hatchery ; Survey ; Temperature ; pH ; Dissolved oxygen ; Pollutant ; Plankton ; Bacillurophyta ; Phytoplankton ; Protozoa ; Zooplankton ; Benthic organisms ; Ciprinidae ; Balitoridae ; Salmonidae
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 68
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  • 7
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    The study and feasibility of Cheshmeh-Ali River and down stream area of Shahid Shah-Charaghy Dam in Damghan for aquaculture development (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25507 | 18721 | 2018-10-05 07:40:08 | 25507 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This research was conducted to finding of Cheshmeh-Ali and Shahcheraghi-Dam downstream areas potential for developing of aquaculture industry. The present study was conducted based on available information and data from monthly and seasonally sampling including geographical area, margin lands and fluctuations of river water, seasonal climatic changes view point of rainfall, temperature, wet, evaporation, wind velocity, sunshine hours, frost and also chemical and physical parameters of water including temperature, alkalinity, total hardness, chloride, calcium, magnesium, sodium, potassium, organic phosphorous and nitrogen, suspended solids, turbidity, water flow and flood conditions, and in addition phytoplankton and zooplankton communities, macrobenthic invertebrates, fishes, aquatic plants, amphibians, reptiles, birds. Results showed that the upstream and downstream regions of Shahcheraghi dam are not suitable for warm water aquaculture in earthen ponds. But view point of cold-water aquaculture, particularly trout, there are some good situations. Also it can be suggested different culture systems including of race way, octagonal concrete ponds, semi-circulation and circulation methods. But, due to water restrictions in the area, semi-circulation and circulation system is preferred. In ideal conditions can be produced about 1,600 tones of trout, if all the capacity of this area be used for aquaculture. Otherwise, in limited circumstances view point of exploitation possibility of the water, only about 700 tons can be produced. In addition, there were appropriate facilities in spring area of Cheshmehali for tourism industry, that it can be considered as priorities for economic development in the region. Due to the low sensitivity of the ecologically conditions, native or exotic aquatic species rearing in indoor methods can be recommended.
    Keywords: Aquaculture ; Iran ; Semnan Province ; Damghan ; Shahcheraghi Dam ; Cheshmeh-Ali River ; Site selection ; Aquaculture capacity ; Sampling ; Temperature ; Turbidity ; Culture
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 71
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