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  • 1
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    Rearing of common carp (Cyprinus carpio) in fiber glass tanks with pellet feeding (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The intensive culture of common carp (Cyprinus carpio) evaluated in fiberglass tanks(2*2m) with feeding on pellet during 8 weeks.The fish (n=201)of common carp selected from three treatments along with three replicates as the average of fish weight was less than 100(g )which divided into 〈50(g), 50-70(g) and 70-100(g).At the first experiment , there is no statistically significant difference between fish weight in relative to replicate treatment (P〉0.05).The common pellet food was chosen for feeding from market as fish were fed by the mean of 4% of their body weight a day. The result indicated that the mean of particular growth ratio at first treatment (0.54) has higher than second treatment (0.34) but in comparison with third treatment (0.46), there was no statistically significant difference (P〈0.05).Also, the conversion ratio at first treatment (5.28) and third treatment (6.09) was lower than second treatment (35.66) and third treatment (20.91) was lower than second treatment (24.24), (P〈0.05). This study showed that monoculture in small scale is eassible by utilizing artificial diet, if the water quality is exposed to change. In this survey, the conversion ratio of the fish was relatively high whereas the growth rate was low.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Common carp ; Mono culture ; Pellet ; Fiber glass tank ; Cyprinus carpio ; Feeding ; Weight ; Growth Rate ; Artificial diet
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 21pp.
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  • 2
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    The survey of vital condition on Sturgeon fry, when they were released into Tajan River by tagging (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This Tajan river in / April/ 2000 and was followed to one year of Four stations selected from estuary to farah Abad station. Sampling occured to limited: (the survey of characteristic and choloride toxins in above limited in relative of three stations. Forty thousands species of Acipenser persicus fry with the different average weights were delivered fry were tagged and then the tagged fish were released in released stations in the different times. The fishing stations and the survival time in fry in the river, determination of upper and down streams in releasing area, Nutrition, Microbial diseases and estimation of catch populations in repeated fishing were evaluated. The physico - chemical characteristics of water and the evaluation of condamination were surveyed in the river. In addition, .the- evaluation of frequency and biomass (such as benthos and zooplankton were surveyed in the river). Finally, the effective factors in the mortality of fry in relative before and after releasing, the best place for releasing area of fry in the river was introduced into execution selection. The survival time of fry is low in the river and it depends on the distant between from the releasing area to estuary and the releasing time. Fry were passed from estuary after 24 hours and fry were approached to the sea after 48 hours and also the peak migration of them has been from 12 p.m to 3 a.m. The internal migrations don't have toward Upper River and these migrations have toward the sea. Fry haven't fed in survival time but after fourteen days, they caught in coastal section. The gammaridea and hypania (type of hypercilia) were fed by them. Before the releasing, fry have been contaminated by bacterial agents. The contamination rate was 3.3% but after releasing and passed from estuary have not been contaminated. The survey of the chemical and physical features in area indicated that the salinity was ascended higher than six ppt in third decade of April. The other factors indicated a healthy ecosystem. Of course, the increasing of salinity was related to Debi in water that approached to zero. The survey of choloride toxins in water indicated that were lack of difficult survey area in rivers. These toxins have been compared to another toxins such as hexa - choloro - benzen (a -HCB) that this concentration has a high in estuary. The evaluations the biomass of nutrition (Benthos and zooplankton) in the river indicated in the relative to benthic condition was included six classes. They contain bottom invertebrates, they have been identified 11 families and 9 species and so they consist of Insecta, Olighocheata class, Crustancea class, hypercilia class, Crustacea class, Bivalva class, Gastropoda class, it is obvious that the estuary station have a high biomass of benthic organisms and it has higher variation species than other stations. The zooplankton condition, In addition, it is belong to zooplankton that was identified to Rotatoria - Cladocera - Copepoda- Barnacles - Protozoa and forminofera as the beginning of spring season. Zooplanktons have a high variation but the end season, they have a below amount. Although, the gill net has one (cm) in mesh that sturgeon fry entrapped them the main effective factor of mortality about sturgeon's fry took place when sturgeon's fry entered into the sea. But the qoopegative company net of fishing, sturgeon's - fry caught in by catch that this agent were threatened when sturgeon's fry entered in to the sea. The evaluating of two stations for releasing the fry (research and farah Abad stations), the .research station (distance 500 m from estuary) has the best area for the releasing. the sturgeon's fry (fingerling) was introduced into the excution section . Key word Tajan river, Acipenser persicus (Sturgeon's fry gillnet) - nutrition, Microbal diseases, Choloride toxins.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Survey ; Sturgeon ; Fry ; Insecta ; Olighocheata ; Crustancea ; Hypercilia ; Crustacea ; Bivalva ; Gastropoda
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 134pp.
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  • 3
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    Study of some specific and non-specific immune responses of grass carp (C. idella) to Aeromonas hydrophila and in the present of organophosphate, diazinon (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Some specific and non-specific immune variables of grass carp against Aeromonas hydropila and in the present of organophosphate, diazinon was studied at 18-20?C. Also, the toxicity of this toxicant was assessed in this species. Isolation and characterization of the fish IgM showed that fish possesses IgM with molecular weight of 480-640 KD having 15-20% of total serum protein. The LC50 96 hours of the toxicant was 15.13 mg/L and the survival fish showed erythropenia, leucopenia and a decrease in levels of blood enzymes, alanine aminotransferase, alkaline phosphatase, lactate dehydrogenase and total protein, while level of glucose increased. When fish were exposed to sublethal concentrations of diazinon (1, 2 and 4 mg/L) for 12 hours large change were then observed in hematological and biochemical variables of blood feaures plus a suppression of chemiluminuscence (CL) response by blood leucocytes during 45 days post-expposure. When fish were intraperitoneally immunized with Aeromonas hydrophila whole cell antigens and exposed to 2 mg/L of diazinon, the immunological responses consisting of lysozyme content, CL response, antibody titre were suppressed during one moth post-exposure. Also, light and electron microscopic examinations of tissues of kidney, liver, gill, spleen and nostril of fish exposed to acute and sublethal concentration of the toxicant revealded remarkable changes including hyperemia, heamorrhage, necrosis, damaging of reticulum endoplasmic of epithelial cells and vacuolation of club cell of nostril, and degeneration of mithochondria in kidney cells, reduction in excretion of amorphous proteinous materials and vesicle numbers on the cell surface and also blocking of cell surface cannals of nostril cells.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Aeromonas hydrophila ; Diazinon ; Grass Carp ; Immune responses ; Organophosphate
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 100pp.
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  • 4
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    Heritability estimation for growth-related traits in juvenile wild common carp (Cyprinus carpio L.) in the south of Caspian Sea (2018)
    Details
    Publication Date: 2021-05-19
    Description: Wild common carp of the Caspian Sea is one of the important fish in the north of Iran, which has been introduced to inland aquaculture. Its genetic characteristics are investigated to set up for breeding programs that are still unknown. Using wild common carp in aquaculture is limited for uncontrolled variation in performance of fish derived from undomesticated breeders. A 7×7 factorial mating design was employed to examine genetic effects of dam and sire on growth and heritability of growth-related traits based on dam half-sib and sire half-sib families. Breeders were obtained originally from the Caspian Sea. A total of 1470 offspring were raised in 49 separate fiberglass tanks with common conditions. Body weight and length were recorded at three different ages of rearing. Estimation of heritability of weights ranged from 0.23±0.05 to 0.30±0.07 for dams and ranged from 0.15±0.03 to 0.26±0.04 for sire. Similar results were obtained with length but with less variation (0.24±0.02 to 0.26±0.01 for dams and 0.20±0.02 to 0.22±0.03 for sire). The broad-sense of weight and length are 0.23±0.04 and 0.23±0.01 respectively. The dam and sire effect on growth were significant, indicating the presence of variations among the native fish of the Caspian Sea. Therefore, it is suggested to use a length for selection that is more reliable and less affected by environment than weight at any time of growth and in respect of high phenotypic correlation (0.87-0.95) observed between weight and length. In the present study we even used wild common carp and the heritability was not higher than the domesticated common carp. It means the genetic variation for quantitative traits, for common carp of the Caspian Sea are low or it may be under pressure of inbreeding which should be studied further.
    Description: Published
    Keywords: Cyprinus carpio L. ; Common carp ; Heritability ; Genetic Parameter ; Juvenile ; Growth
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.740-748
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  • 5
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    Genetic parameters estimation of growth in Salmo trutta caspius as a function of body weight and Length (2018)
    Details
    Publication Date: 2021-05-19
    Description: There is no available adequate information on the biology and genetics of the Caspian salmon (salmo truta Caspiu) living in the Caspian Sea with other species such as common carp families, sturgeons and etc., therefore we are interested in knowing whether selection for rapid growth rate in salmo trutta Caspius will potentially lead to correlated genetic response in body weight and length. The potential for correlated responses was evaluated by the heritability estimation, estimating heritabilities of body weight and length. The genetic parameter estimations were obtained for different stages of growth from 5400 fish consisting 27 unrelated families that reached maturity at 36 months of age. The parent which used to produce separate family groups had been caught from the Caspian Sea and spawned during the autumn season. The estimated heritability of body weight and length was 0.42±0.13 and 0.49±0.01, respectively based on differential and selection response between parent pairs and their offsprings. Several factors may have affected the creation of this high level of estimation, dominant effect, inherited from different breeders to offspring.
    Description: Published
    Keywords: Salmo trutta caspius ; Genetic parameters ; Heritability ; Growth ; Body weight ; Length
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.214-222
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  • 6
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    Genetic parameters of growth in rainbow trout, Oncorhynchus mykiss, at early rearing stage (2018)
    Details
    Publication Date: 2021-05-19
    Description: The heritability response for growth of rainbow trout during early developmental stages was detected on the basis of full-sib and half-sib cross between the selected lines. The experiment was done in Shahid Bahonar Salmon Propagation Center, Kelardasht, Iran. Breeders were taken from the stocks maintained in this station. A bifactorial cross was done between two line using four randomly sire and four randomly chosen dams form each line Analysis of variance revealed a significant difference at 300 days of age between half and full-sib (p〈0.026). The effective difference in weight between half/full-sibs of juveniles was not statistically significant on 150 days (p〉0.817) and 225 days (p〉0.081). No significant difference between mean body weight of male and female half-sib group was found (p〉0.05); neither were there significant differences between sireline (p〈0.324) and dam line (p〈0.230) at age of 300 days. The heritability ranged from 0.093 to 0.223 in sire and 0.11 to 0.329 in dam groups. The average heritability in sire regardless of age was 0.16 and in dams 0.21. The heritability in total regardless of age and sex was estimated about 0.185. Genetic parameters (h2) were different between dams (0.15-0.27) and sires (0.13-0.19) for all ages of samplings and for age of 150 day old, was significant (p〈0.035).
    Description: Published
    Keywords: Rainbow trout ; Heritability ; Full-sib ; Half-sib ; Genetic ; Parameters
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.121-136
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  • 7
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    Generating gynogenetic common carp (Cyprinus carpio L.) by Gama ray (2018)
    Details
    Publication Date: 2021-05-19
    Description: We investigated the generation of gynogenetic common carp (Cyprinus carpio L.) during 1989-1990. After selection of suitable breeders containing special transferrin marker in breeding season, we applied ionizing radiation (60 Co gamma ray) for genetic inactivation of spermatozoa of the fish. We found that in the exposure of the sperm to a range 80-120 Krad irradiation, 100 Krad gave the best results. Application of various cold and heat shocks to the eggs at different time intervals after addition of water to the mixture of milk and eggs generated diploid gynogenetic fish. Cold and hot shock treatments generated significantly different gynogenetic fish (7% and 2.5% respectively). The optimum shock treatment was found to be 5 minutes after fertilization in 0 ֯C lasting 50 minutes. For each treatment, 100 fish fingerlings were subjected to electrophoresis which showed the mitotic diploid progenies were all-maternal inherited with BB genotype.
    Description: Published
    Keywords: Gynogenetic ; Cyprinus carpio L. ; Common carp ; Genetic Manipulation ; Gamma ray ; Breeding ; Spermatozoa ; Eggs ; Fingerlings ; Genotype
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.183-198
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  • 8
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    Kilka fish meal corrective action plan for quality preservation (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The present study initially investigated on the recovery the quality of kilka fish meal during the year of 2000-2001. "Three experiments such as .temperature, pressure, time were studied and 8 formulas, the chemical and hygienic condition of the production were investigation in the period of 270 days storage. Sampling were drawn after 0, 45, 90, 135, 270 days of storage and the changes in the total count, Fungi, Aspergilus, Salmonella, Percentages of Fat, Wet, Protein, Ash ratio of Calcium to Phosphorous, Histamine Total volatile nitrogen (IVN) and peroxide value were determined. - The statistic evaluation of formulas have been shown the significant differences between 8 formulas (P 〈0.()00) as well as between formulas in pair (1 to 4m 5 to 8) which they had a significant In N conclusion. the formulas I to 4 (in pressure of atmosphere and 1000c. 1200c temperature as well 6 atmosphere indirect pressure and 1000c, 1200c in different have been recognized as the best formulas and it had been evaluated for the production of 1 grade fish meal according to standards. In this research the cooling system was used to cool the products and .using 3 layers paper bags with internal plastic layer for packing instead of simple plastic bags.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Kilka ; Fish Meal ; Temperature ; Sampling ; Fungi ; Salmonella ; Protein
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 80pp.
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  • 9
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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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  • 10
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    The survey of diversity, distribution and abundance of phytoplankton in the southern part of Caspian Sea (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Since phytoplankton are the base of life and productivity of aquatic ecosystems, sustainable ecological study of the Caspian Sea, particularly the distribution and identification of species composition, density and biomass, seasonal and regional variations in phytoplankton before each study seems necessary. Due to various circumstances physical and chemical rivers leading to the sea, seabed topography in different situation appears to be of primary production in the eastern and western between the Caspian Sea in the season, may be altered.Identifying species and determining the distribution and biomass of the changes and how they are affected by environmental changes and we are environmentally conscious. We also compare the current situation with previous studies, we find that the number and types of plankton biomass have been what it is. During 1389 in spring, summer, autumn and winter, in a study of 8 transects of 40 stations. In each transect from Astara to the Turkmen. 5 stations at depths of 5. 10. 20. 50. 100 m were selected for sampling. The total number of 182 species from seven branches Bacillariophyta, Pyrrophyta, Cyanophyta, Chlorophyta, Euglenophyta, Xantophyta and Chrysophyta phytoplankton were identified. Including 81 species of Bacillariophyta, 33 Cyanophyta, 25 Pyrrophyta, 31Chlorophyta , 9 Euglenophyta, 1 Xantophyta and Chrysophyta had 1 specie. Studies have shown that density and biomass of Bacillariophyta were 228 (± 471) per cubic meter × 106) and 6157 (± 290) mg per cubic meter) respectivity and Pyrrophyta were 28/17( ± 27/14) cubic meter × 106in cubic meters) and 3349 ( ± 336) mg per cubic meter) and Cyanophyta 120/40 (± 123/87 ) per cubic meter × 106 per cubic meter), biomass (55 ± 57mg per cubic meter) were the branches of the dominant phytoplankton. Abundance and biomass in different seasons have been significant differences (p 〈0.05). Most of Bacillariophyta (61 species) was in Autumn and then in winter (48 species). Dominant species of Bacillariophyta were Pseudonitzschia seriata, Rhizosolenia fragilissima, Stephanodiscos sp. , Melosira varians, Nitzschia acicularis and Cyclotella menenghiniana Pyrrophyta was greatest diversity of branches in summer, autumn and winter (19 species), which includes Exuviaella cordata, Exuviaella marina, Prorocentrum praximum and Prorocentrum scutllum. In the autumn density of Cyanophyta was 285/7( ± 137/1) cubic meters × 106 and biomass was 95( ± 54) mg per cubic meter) and 18 species were observed. The dominant species in this category were Oscillatoria sp., Nodularia spumigena and Oscillatoria agardhii. Most species of Chlorophyta branche in autumn and winter and summer median region with the highest density at the density of 26/2% and most of it is Binuclearia lauterbornii. Identified as the branches Euglenophyta were Trachelomonas, Euglena and Phacus that were observed in all seasons. In winter, the highest mean biomass was 9( ± 0/818) mg per cubic meter and the highest density of in summer was 0/5 ( ± 0/5) in cubic meters × 106 . In winter the depth of 10 meters and surface of Babolsar, Amir Abad and Anzali, a kind of Chrysophyta and in surface of Tonekabon and Anzali a species of Xantophyta were observed that had negligible density and biomass.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Phytoplankton ; Ecosystem ; Aquatic ; Pseudonitzschia seriata ; Rhizosolenia fragilissima ; Stephanodiscos sp. ; Melosira varians ; Nitzschia acicularis ; Cyclotella menenghiniana ; Exuviaella cordata ; Exuviaella marina ; Prorocentrum praximum ; Prorocentrum scutllum ; Oscillatoria agardhii ; Survey ; Diversity ; Distribution ; Abundance
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 103pp.
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