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  • 1
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    Survey of potential adaptation (Ion- Osmotic) Rainbow trout (Oncorhynchus mykiss) fingerling with Caspian sea water (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This study aimed to determine domain the adaptability of rainbow trout(Oncorhynchus mykiss) fingerlings in fresh water up to 20 per thousand (grams per liter) for providing facilities for growing this valuable species in the aquatic environment with salinity unconventional been completed. For this purpose the biochemical, bloody and physiologic parameters rainbow trout were studied to determine the adjustment range .Fingerlings fishes from cold water fish farm in the province Mazandran were prepared and for experiments were transferred to the Ecological Institute of Caspian Sea . Fingerlings with an average weight 31.56 ± 0. 07 SE g and average fork length 13.80 ± 0.15 SE cm, in 3 treatments in water with salinities (fresh, 13 and 20 grams per thousand) with a density of 15 numbers in polyethylene to 300-liter tank containing the 250 liters of water testing were introduced.Fresh water from Tajan rivers and water psu13 from the water Caspian Sea and water psu20 by mixing water the Caspian Sea and Sea salt was prepared . The daily amount to 50 percent of the of water tankss been replaced .During the experimental period was for 7 days and were not fed during the experiment.The water parameters was measured during the experiment included 6 ppm dissolved oxygen, pH equal to 8.2 and temperature 15.5 ° C . In the experimental period were not observed Losses in the experimental groups . The results showed that fish gill and kidney introduced in different salinities by making appropriate changes in chloride cells in the gills through increasing the number and the volume of these cells at the base of secondary blades and tubules in the kidney tubules to create greater interior space, are adapted to By changing salinity.Relatively parameters osmolarity, sodium, chloride, magnesium, cortisol, calcium, hematocrit, hemoglobin,number of red blood and white cells in water saltier than freshwater environment was higher (0.05〈 p, Duncan). Changes in hematological and blood plasma ionic parameters and vital organs Fingerlings indicates a willingness adaptability and the ability physiological adaptation fingerling was consistent with changes to environmental salinity brackish water .So, the factors measured with increasing salinity the uptrend that the range of variation for the osmolarite 449-281 mOsmol kg, for sodium, chloride, magnesium, cortisol, respectively, 211- 151, 165121, 3 / 3 7/0, 87. 53 mmol and the calcium 22-13 mg per dL.The measured values for hematocrit 32.2- 38.8%, hemoglobin 6.2 - 8.6 g per deciliter and the red and white blood cells, was respectively, 1.2-1.7×106 and the 15.6 -18.9×103.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Adaptation ; Rainbow trout ; Gills ; Kidney ; Survey ; Oncorhynchus mykiss ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 42pp.
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  • 2
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    The Study Of Physical, Chemical And Biological Tagan and Sorkhrod river on time realize fingerling Rutilus frisii katum (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In this study, the Tagan and Sorkh rod River in province in the northwest region of Iran, were consider and physico-chemical water parameters , phytoplankton, zooplankton and benthos cumunity , were identify and were measured also measured some organoic toxin (in water) during a year (2011 )all conducted was done at three stations. The purpose of this study was to assess the quality of water for aquaculture activities and realizing fingerling fish . In most cases between Physico-chemical parameters in Tagan and Sorkhrod river,in EC,TDS ,SAL ,NH4 , Ca , Mg difference was statistically significant (P〈0.05). Mean physico-chemical factors including water temperature in Tagan and Sorkhrod river respectivity 27±0.95,26.4±0.67±,25.6 ° C, DO: 7.4±0.16, , 7.8 ±0.14mg.l^-1; pH: 7.97±0.5 , 7.77±0.6, TDS: 7994±557 , 1317±257 mg.l^-1; EC: 11920 ±838, 1583±368 µ.cm^-1; Ca: 470±57 ,Mg: 57±11 mg.l^-1, NH4 + : 0.390±0.05 , 0.141±0.03 mg.l^-1; NO2 - : 0.030 ±0.007, 0.034±0.032 mg.l^-1; NO3 - : 0.330±0.085 ,0.420±0.034 mg.l^-1; PO4 -3: 0.049±0.003 to 0.051±0.007 mg.l^-1;salinity:10091±746 ,1247±238 mg.l^-1and total hardness: 3600±460, 406±76 mg.l^-1 calcium carbonate, respectively. The samples water from Tagan ,Sorkhrod , Tonekabon and Shirod river have organo clore toxin enclouded: g- BHC, B-Endosulfan, Endosulfan sulfate,. Aldrin, DDD Heptachlor, Lindane .Results showed that concentrations of o,c.t in cases were not the limit of detection. Range of this option maximom to minimom in river were 0.10 to 0.22 mg/l . this result keep in renge of organization U.S.A .This level not dangerous for live and realize figerling fish. Phytoplankton: The phytoplankton species were identified from the five phyla, including 56 species in sorkhrod and 52 species in tagan river . In Tagan Bacillariophyta and Chlorophyta phyla 75% of total percentage phyto and in sorkhrod Bacillariophyta and Chlorophyta , 93% of total percentage phytoplankton. Zooplankton: During the study period, four major groups Holozooplankton including Rotatoria and protozoa, Copepoda and Cladocera in Tagan river and Sorkhrod were observed. Macro benthos: The benthos species were identified from the seven family, including, Cardidae, , Spionidae , Tubificidae ،Lumbriculidae , Lumbricidae , Chironomidae Elmidae. Comparison Mean biomas between Tagan and Sorkhrod show ,sorkhrod with 3.4g/m^3 biomas in tagan with0.32g/m^3 biomas has beter coundithion for realize finger ling Rutilus frisii katum .
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Physico-chemical ; Water quality ; Parameter biologic ; Rutilus frisii katum ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 50pp.
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  • 3
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    Feasibility Study of Rainbow Trout (Oncorhynchus mykiss ) culture in brackish water in earthen fish pond in North Khorasan province (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The use correct of non-agricultural land due to saline and waternon fresh for rearing of aquatic animals, especially fish, in good seasons, can generate for employment and provide fertile ground . This study aimed to assess the ability of Rainbow Trout reared in earthen ponds potential using brackish water stub area south of North Khorasan province in cold seasons (autumn and winter) have been conducted. Farming operations in three earthen ponds, each with an area of 3,000 square meters and two water wells within 160 days of the initial electric Bahdayt 8400 and 18100 µs was conducted. Average initial weight of juveniles when introduced into soil ponds 32.0±1.0 and 22.7±1/7 grams and density drop in the of ponds 5 and 7 number per cubic meters . Feeding on pond done recipes nutrition standards Related to fish size and water temperature was during the period culture . To help improve the water quality during the breeding ponds of cyclic change in volume of pond water (20-15%) and two aeration SPLASH with errive fresh water to form rain fall in each pond was used. The results obtained during the period of measurement water physico-chemical parameters (temperature, electrical conductivity, dissolved oxygen, nutrients, total dissolved substances, acidity) shows changes in the mean amplitude of these factors has been tolerated for raising trout The results showed that children reared trout have been introduced since the introduction of nteroperability with brackish water in the pond also grown to over 14 thousand have salt and water changes physical and chemical factors have endured. The results showed that fish farming in addition to works by adapting the environment had to foster the growth of the pond water . So in 5 months, with a mean survival of 87 percent hindrance develop marketable size with an average weight of 340±12-390±13and 470 ±17grams and have a total production of more than 20 tonnes. All of it has been confirmed, the study area (SFRAIEN)is very suitable for the breeding Rainbow trout of pond during the fall and winter seasons .
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Physico-chemical ; Rainbow Trout ; Adaptation ; Culture ; Brackish Water ; Earthen ponds ; Oncorhynchus mykiss ; Saline water ; Aquatic ; Density ; Survival
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 44pp.
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  • 4
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    The study of physical, chemical and biological Tagan and Sorkhrod River on time realize fingerling Rutilus frisii kutum (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25628 | 18721 | 2018-10-08 07:16:43 | 25628 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this study, the Tagan and Sorkh rod River in province in the northwest region of Iran, were consider and physico-chemical water parameters, phytoplankton, zooplankton and benthos cumunity, were identify and were measured also measured some organoic toxin (in water) during a year (2011 )all conducted was done at three stations. The purpose of this study was to assess the quality of water for aquaculture activities and realizing fingerling fish. In most cases between Physico-chemical parameters in Tagan and Sorkhrod river in EC, TDS ,SAL,NH4, Ca, Mg difference was statistically significant (P〈0.05). Mean physico-chemical factors including water temperature in Tagan and Sorkhrod river respectivity 27±0.95,26.4±0.67±,25.6°C, DO: 7.4±0.16, 7.8±0.14 mg.l^-1; pH: 7.97±0.5, 7.77±0.6, TDS: 7994±557, 1317±257 mg.l^-1; EC: 11920 ±838, 1583±368 µ.cm^-1; Ca: 470±57 ,Mg: 57±11 mg.l^-1, NH4^+ : 0.390±0.05 , 0.141±0.03 mg.l^-1; NO2^- : 0.030 ±0.007, 0.034±0.032 mg.l^-1; NO3^- : 0.330±0.085 ,0.420±0.034 mg.l^-1; PO4^-3: 0.049±0.003 to 0.051±0.007 mg.l^-1; salinity:10091±746, 1247±238 mg.l^-1and total hardness: 3600±460, 406±76 mg.l^-1 calcium carbonate, respectively. The samples water from Tagan ,Sorkhrod , Tonekabon and Shirod river have organo clore toxin enclouded: g- BHC, B-Endosulfan, Endosulfan sulfate. Aldrin, DDD Heptachlor, Lindane. Results showed that concentrations of o,c.t in cases were not the limit of detection. Range of this option maximom to minimom in river were 0.10 to 0.22 mg/l. this result keep in renge of organization U.S.A .This level not dangerous for live and realize figerling fish. Phytoplankton: The phytoplankton species were identified from the five phyla, including 56 species in sorkhrod and 52 species in tagan river. In Tagan Bacillariophyta and Chlorophyta phyla 75% of total percentage phyto and in sorkhrod Bacillariophyta and Chlorophyta, 93% of total percentage phytoplankton. Zooplankton: During the study period, four major groups Holozooplankton including Rotatoria and protozoa, Copepoda and Cladocera in Tagan river and Sorkhrod were observed. Macro benthos: The benthos species were identified from the seven family, including, Cardidae, Spionidae, Tubificidae ،Lumbriculidae, Lumbricidae, Chironomidae Elmidae. Comparison Mean biomas between Tagan and Sorkhrod show, sorkhrod with 3.4g/m^3 biomas in tagan with0.32g/m^3 biomas has beter coundithion for realize finger ling Rutilus frisii katum.
    Keywords: Aquaculture ; Ecology ; Iran ; Sorkhrod river ; Tagan ; Physico-chemical ; Water quality ; Parameter biologic ; Rutilus frisii katum ; Fingerlings
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 50
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  • 5
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    Feasibility study of rainbow trout (Oncorhynchus mykiss ) culture in brackish water in earthen fish pond in North Khorasan province (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25583 | 18721 | 2018-10-07 11:15:10 | 25583 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The use correct of non-agricultural land due to saline and waternon fresh for rearing of aquatic animals, especially fish, in good seasons, can generate for employment and provide fertile ground . This study aimed to assess the ability of Rainbow Trout reared in earthen ponds potential using brackish water stub area south of North Khorasan province in cold seasons (autumn and winter) have been conducted. Farming operations in three earthen ponds, each with an area of 3,000 square meters and two water wells within 160 days of the initial electric Bahdayt 8400 and 18100 µs was conducted. Average initial weight of juveniles when introduced into soil ponds 32.0±1.0 and 22.7±1/7 grams and density drop in the of ponds 5 and 7 number per cubic meters . Feeding on pond done recipes nutrition standards Related to fish size and water temperature was during the period culture . To help improve the water quality during the breeding ponds of cyclic change in volume of pond water (20-15%) and two aeration SPLASH with errive fresh water to form rain fall in each pond was used. The results obtained during the period of measurement water physico-chemical parameters (temperature, electrical conductivity, dissolved oxygen, nutrients, total dissolved substances, acidity) shows changes in the mean amplitude of these factors has been tolerated for raising trout The results showed that children reared trout have been introduced since the introduction of nteroperability with brackish water in the pond also grown to over 14 thousand have salt and water changes physical and chemical factors have endured. The results showed that fish farming in addition to works by adapting the environment had to foster the growth of the pond water . So in 5 months, with a mean survival of 87 percent hindrance develop marketable size with an average weight of 340±12-390±13and 470 ±17grams and have a total production of more than 20 tonnes. All of it has been confirmed, the study area (SFRAIEN)is very suitable for the breeding Rainbow trout of pond during the fall and winter seasons .
    Keywords: Aquaculture ; Iran ; Khorasan province ; Rainbow Trout ; Adaptation ; Culture ; Brackish Water ; Earthen ponds ; Oncorhynchus mykiss ; Saline water ; Aquatic ; Density ; Survival
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 44
    Location Call Number Expected Availability
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