Iranian Journal of Fisheries Sciences最新文献

{"title":"Cryopreservation of Mesopotamian catfish (Silurus triostegus H., 1843) spermatozoa: Effects of diluents and osmotic pressure on spermatozoa DNA damage, rate and duration of motility","authors":"E. Şahinöz, F. Aral, Z. Doğu, I. Koyuncu, Ozgur Yuksekdag","doi":"10.22092/IJFS.2018.119818","DOIUrl":"https://doi.org/10.22092/IJFS.2018.119818","url":null,"abstract":"This study was performed to evaluate the effectiveness of three different conditions of osmotic pressure (325, 365 and 385 mOsm kg -1 ) in combination with dimethyl sulfoxide (DMSO) and NaCl or glucose on spermatozoa DNA damage, rate and duration of motility. Sperm was collected from eight healthy mature Mesopotamian catfish, evaluated microscopically and pooled at 25 °C. The pooled sperm samples were diluted to a final concentration of 1/3 (sperm/diluents) in NaCl and glucose based extender (10% cryoprotectant and 10% egg yolk (EY) into 80% diluents) and separated into groups of 3 different osmotic pressures ( 325-365-385 mOsm kg -1 ) . Equilibrated sperm was frozen in 0.25 mL straws. Sperm samples were tested for post-thaw sperm motility, duration of motility, DNA damage, and apoptotic index. The highest spermatozoa motility rates were obtained with glucose and NaCl diluents at osmotic pressures of 365 and 385 mOsm kg -1 ( p <0.01). The spermatozoa motility duration was found to be the highest in glucose and NaCl diluents at 365 mOsm kg -1 osmotic pressure ( p <0.01). The post-thawing live spermatozoa rate was determined to be the highest in the sperm frozen with glucose at 385 mOsm kg -1 . The apoptotic cell rate was determined to be the highest in the sperm frozen with glucose at 385 mOsm kg -1 osmotic pressure. The necrotic cell rate was found to be the highest with 2.08±0.39% when frozen with the glucose diluent at 325 mOsm kg -1 pressures. It is concluded that the glucose solution with low osmolality had a harmful effect on the spermatozoa. Results of the DNA damage levels of Silurus triostegus sperm according to different diluents.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2293-2307"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43239860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalog of ophiuroidea from southeastern coast of Iran (Northern parts of Oman sea)","authors":"A. Beygmoradi, G. Attaran-Fariman","doi":"10.22092/IJFS.2020.122633","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122633","url":null,"abstract":"Introduction Chabahar Bay is located in southeastern coast of Iran and the northern part of the Oman Sea in the geographic area of 25°22? 47?N  and 60°39?  90?E. This Bay with having a variety of coverings, such as, muddy, stone, sandy and rocky, has provided possibility of life for different taxa, such as, shellfish, mollusks, echinoderm ( Ghanbarifardi and Malek, 2009; Yazdani et al., 2009; Sadeghi and Loghmani, 2010; Khaleghi and Owfi, 2011; Fazeli et al., 2013; Attaran et al., 2014). Ophiuroids are relatively small echinoderms that all live in marine habitats, such as, sandy, rocky, stony, muddy, on sponge and corals (Barnes et al., 2001). Ophiuroids with above 2,000 species are a big group of echinodermata distributed in all marine environments from polar to the equator, and from the intertidal to subtidal zone (Pawson, 2007). In the present study, ophiuroids species are identified based on their morphological features and introduced from Chabahar bay.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2743-2752"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45771492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth and hematological changes of Aspikutum, a hybrid of Leuciscus aspius female (Linnaeus, 1758) × Rutilus frisii male (Kamensky, 1901), fed rations with various protein to lipid ratio","authors":"P. Haghparast, B. Falahatkar, Bahman Meknatkhah, M. Khoshkholgh","doi":"10.22092/IJFS.2020.122205","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122205","url":null,"abstract":"A 60-day trial with six diets (three different protein levels × two different lipid levels) containing 30, 35 and 40% protein with 10 and 15% lipid levels was conducted to determine the optimum dietary protein to lipid ratio and effects on growth performance and hematological indices of Aspikutum, Leuciscus aspius female×Rutilus frisii male. Two hundred and fifty two fish (31.2±0.4 g; mean±SEM) were distributed in 18 circular concrete tanks (400 L) and were fed 3 times daily according to their apparent satiation. The results showed that the highest growth rate was achieved when fish fed with diet containing 35% protein and 15% lipid. Lipid productive value was significantly decreased with increasing dietary lipid level. Number of red blood cells, white blood cells, hemoglobin concentration, hematocrit value, mean corpuscular volume, mean corpuscular hemoglobin, neutrophil and eosinophil were not considerably differing among rearing treatments, while mean corpuscular hemoglobin concentration was significantly higher in fish fed with diet containing 30% protein and 10% lipid. The percentage of lymphocyte increased with increasing dietary lipid level, whereas a decrease of monocyte percentage was observed with increasing of dietary lipid level. Dietary protein and lipid level, as well as the interaction showed no significant differences in total lipid, triglyceride, cholesterol and total protein levels. In general, this study has indicated that diet containing 35% protein and 15% lipid had positive effects on growth performance, while no effects on biochemical and hematological parameters was achieved.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2199-2213"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47936413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IGF-I gene expression in liver and white muscles confirming promotion effect of dietary NaCl on Growth indices of Giant sturgeon (Huso huso) juveniles","authors":"Somayeh Hasanpoor, M. G. Marzdashti, H. V. Roodsari, R. Kazemi, Seyed Hamed Mosavi sabet","doi":"10.22092/IJFS.2020.122567","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122567","url":null,"abstract":"TThis study was conducted to evaluate effects of different levels of NaCl used in the diet of cultivated Huso huso juveniles based on gene expression of Insulin-like Growth Factor (IGF), IGF mRNA in the liver and muscle. Totally 480 specimen beluga juvenile by the average weight of 173.8±0.49 g stocked in 12 tanks and reared for 12 weeks. The NaCl added in 4 levels and with three replicates of 0(control), 3, 6 and 9 percent to the basic diet. After 12 weeks total RNA extracted from the16 liver and muscle which were sampled from two replicates of treatments and evaluated by electrophoresis. β2m-qPCR primer was used as gene reference. The size of the product obtained from primers and the specific degree of action of primers was confirmed using agarose gel (1.5%) and the sequencing of the genes.According to the results, significant changes in IGF mRNA expression observed in the treatments and control group (p <0.05). The data of IGF gene expressions showed that the highest levels observed in the control group and treatment 3% respectively. Moreover, in the tissue of white muscle, IGF mRNA gene expression showed highest gene expression in the control group (6.4) and lowest expression were in treatment 3% (0.7) and treatment 6% (0.8). Also, growth indices results including body weight, Specific Growth Rate(SGR), Body Weight Index(BWI), Hepatosomatic Index(his) and Average Daily Growth(ADG) significantly were increased in all treatments, with significant differences among treatments and the control group (p <0.05). The SGR in the control group increased from 1.41 to 1.58 in treatments 3% and 6% and the BWI increased from 68.88 in the control group to 98.28 in treatment 6%. HSI increased from 3.64 g in the control group to 4.37 g in treatment two. FCR showed a significant difference in the control group (1.27) and 1.14 in 3% and 9%, respectively. Statistical analysis of FCR, SGR and IGF mRNA gene expression showed better growth indices in fish fed by a diet containing NaCl.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2634-2648"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46088092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effects of dietary levels of the sea cucumber (Bohadschia ocellata Jaeger, 1833) meal on growth performance, blood biochemical parameters, digestive enzymes activity and body composition of Pacific white shrimp (Penaeus vannamei Boone, 1931) juveniles","authors":"S. Javanmardi, K. R. Tavabe, S. Moradi, A. Abed-Elmdoust","doi":"10.22092/IJFS.2020.122330","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122330","url":null,"abstract":"The sea cucumber (Bohadschia ocellata) is a species with great density, reproduction rate and growth in the Persian Gulf. A Very  few human consumption in Islamic countries makes this species a good choice to be used as a supplementary or stimulant ingredient in cultured aquatic animals. The present study evaluates the effects of dietary levels of B. ocellata meal on growth performance, blood biochemical parameters, digestive enzymes activities and body composition of Pacific white shrimp (Penaeus vannamei). White shrimp juveniles (6.6 ± 0.1 g) were fed with different levels of the B. ocellata meal (0, 2, 4, 6, and 8 % of the diet) during 8-weeks period. According to the results weight gain, specific growth rate, and daily feed intake trends showed significant (p <0.05) increase with increasing level of sea cucumber meal from 0% to 4%. The greatest feed conversion ratio and least protein efficiency ratio were recorded in the 8% treatment. In blood biochemical outputs, the least cholesterol and the highest glucose levels were recorded for the 4% and 6% treatments, respectively. Digestive enzymes activity assessments showed that protease activity was significantly increased from 4% to 8% treatments. In general, adding 4-6% of B. ocellata meal to commercial diet of P. vannamei juveniles clearly improved some body biochemical activities such as protease enzymes activity and blood cholesterol content, and enhanced growth performance of white shrimp.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2366-2383"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42772996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determining the hook selectivity of bottom longline used for European hake (Merluccius merluccius, L. 1758) in Saros Bay (northern Aegean Sea, Turkey)","authors":"Alkan Öztekin, Uğur Özekinci, A. Ayaz","doi":"10.22092/IJFS.2020.122555","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122555","url":null,"abstract":"This study was carried out at Saros Bay, between June 2011 and July 2013 to determine hook selectivity of bottom longlines used on European hake (Merluccius merluccius, L. 1758) fishing. Throughout the study thick type in 6, 7, 8 and 9 sized flat hooks were used between 150 to 400 m depth. 36 fishing operations were carried out and 222 fish were caught by using 7200 hooks in total. Depending on the size of hooks number 8 was the most efficient hook that has caught 114 fish and number 6 was the least efficient one that has caught only 14 fish. The SELECT method is used in the determination of the selectivity parameters. Bi model has given the best fit according to selectivity analysis of five different models. Optimum catching lengths were found 60.09 cm for 6 number hook 51.45 cm for 7 number hook 46.43 cm for 8 number hook 40.11 cm for 9 number hook, respectively in Bi Model model. Minimum size limit for European hake is 25 cm in Turkey. Considering the minimum size limit, use of hooks with gapes larger than number 9 hook (11.75 mm) used in this study is suggested.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2608-2617"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44014231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of corn distiller’s dried grains with solubles as a feed ingredient for rainbow trout (Oncorhynchus mykiss) feeds: Growth, digestibility, liver and intestine histology","authors":"B. Aydın, E. Gümüş","doi":"10.22092/IJFS.2020.122503","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122503","url":null,"abstract":"A feeding trial was performed to investigate the effects of the partial replacement of fish meal with distiller’s dried grains with solubles (DDGS) on growth, feed assessment, economic assessment, digestibility of diets, as well as liver and intestinal histology of rainbow trout (Oncorhynchus mykiss). Four isonitrogenous and isocaloric diets were prepared using DDGS in rates of 0%, 10%, 20% and 30% (Control, DDGS10, DDGS20, and DDGS30, respectively) instead of reducing the fish meal content. Triplicate groups of 25 rainbow trout (mean initial weight 19.88±0.02 g) were fed with the diets for 84 days. The results revealed that dietary DDGS30 had the highest final weight and specific growth rate. Feed conversion and protein efficiency rates were similar among the dietary treatments. Economic conversion ratio was reduced depending on DDGS increase in diet that resulted in an increased economic profit index. The apparent digestibility of the diets did not differ significantly among treatments. There were no significant differences in the diameter of hepatocyte nuclei but there was a detected amount of vacuolization in the hepatocyte cytoplasm of fish fed  the dietary DDGS20 and DDGS30 diets. Distal intestine histomorphometric parameters were unaffected by dietary treatments, however, increased lamina propria width was observed as the rate of DDGS increased in diets. These results indicate that DDGS can be added to rainbow trout diets by up to 30% without negatively affecting growth performance, diet digestibility, as well as the histology of  the liver and intestine.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2573-2592"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46652049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius)","authors":"M. Adel, M. Ina-Salwany, S. Yeganeh, I. Karimi, A. Zafariian","doi":"10.22092/IJFS.2020.122408","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122408","url":null,"abstract":"The main objective of this study was to evaluate the pathogenicity of isolated   Yersinia ruckeri  from Caspian trout. Y. ruckeri specimens were isolated from infected rainbow trout farms located in north of Iran. The identification was confirmed by biochemical tests and 16s rRNA gene sequencing. The pathogenicity test was carried out to determine the virulence of the Y. ruckeri by IP injection, and histopathological and hemato-biochemical changes were evaluated pre and post challenge. Based on the results, LD50 were calculated as 1×105 CFU/mL, while 1×107 CFU/mL caused 100% mortality after 10 days in the experimental groups. The main histopathological changes were seen in liver, kidney, spleen and intestine, including erosion and necrosis, infiltration of inflammatory cell, hyperplasia and catarrhal enteritis in the infected organs. Also, a significant decrease in glucose, RBC counts, Hb values and HCT percentage and significant increase in the WBC counts, neutrophils percentage, AST, ALP and LDH values were observed in infected fish after challenging. Finally, Caspian trout is susceptible to Yersiniosis and can play important role in transmission of Y. ruckeri to cultured and wild fish.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2410-2421"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47736223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal variation of fucoxanthin content in four species of brown seaweeds from Qeshm Island, Persian Gulf and evaluation of their antibacterial and antioxidant activities","authors":"M. Yousefi, M. Hashtroudi, A. Moradi, A. Ghasempour","doi":"10.22092/IJFS.2020.122396","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122396","url":null,"abstract":"Fucoxanthin contents of four species of brown seaweeds (Dictyota indica, Padina tenuis, Colpomenia sinuosa and Iyengaria stellata) from intertidal zone of Qeshm Island, Persian Gulf were assessed in summer and winter of 2016. In addition, some physicochemical properties (pH, temperature, salinity and conductivity) of seawater were monitored on the same time. The antibacterial activity of algal extracts was determined by disc diffusion assay, minimum inhibitory and minimum bactericidal concentration tests; and the antioxidant activity through ferric reducing antioxidant power method. The fucoxanthin contents of the studied seaweeds were higher in winter. D. indica showed the highest amount of fucoxanthin (approximately 462.79 and 210.72 µg/g) in both seasons, which makes it commercially applicable e.g. in food and pharmaceutical industries. Furthermore, D. indica, I. stellata, p . tenuis and C. sinuosa showed a strong ferric reduction power in both seasons. Considerable inhibition zone against gram negative (Escherichia Coli: PTCC1330) and gram positive bacteria (Staphylococcus aureus: PTCC1112) were also observed.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2394-2408"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43973832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feeding ecology of Acrossocheilus yunnanensis (Regan, 1904), a dominant fish in the headwaters of the Chishui River, a tributary of the Yangtze River","authors":"Fu-ji Zhang, Fei Liu, Xin Gao, Huanzhang Liu, Xiong Zhang, Xiao-ming Wang, W. Cao","doi":"10.22092/IJFS.2020.122630","DOIUrl":"https://doi.org/10.22092/IJFS.2020.122630","url":null,"abstract":"Feeding ecology of Acrossocheilus yunnanensis, a dominant fish in the headwaters of the Chishui River, a tributary of the upper Yangtze River, was studied using the analysis of gut contents. From March 2015 to January 2016, a total of 543 individuals were collected and analyzed. The results showed that A. yunnanensis was an omnivorous fish mainly feeding on chlorophytes, diatoms, and aquatic insects. The trophic level was 2.69±0.62 (mean±SD), signifying A. yunnanensis as a primary or secondary predator. Dietary shifts were found among different ontogenetic stages and seasons. Specifically, young individuals fed primarily on aquatic insects and diatoms, whereas older fish fed mainly on chlorophytes. In spring, the preferred food item was aquatic insects and in other seasons, chlorophytes became the predominant prey. Diet composition showed no differences among individuals of different sex and diel periods. The feeding intensity of A. yunnanensis was not affected by diel periods, suggesting this species feeds continuously. However, its feeding intensity was significantly influenced by seasons. Pairwise comparison found that the feeding intensity was higher in spring and autumn than that in summer and winter, with minimum food intake in winter and maximum in spring. Analysis on Amundsen graph and niche breadth index indicated that A. yunnanensis might pursue an opportunistic and moderately generalized feeding strategy, which could explain why it has become the dominant fish species in our study area.","PeriodicalId":14569,"journal":{"name":"Iranian Journal of Fisheries Sciences","volume":"19 1","pages":"2688-2704"},"PeriodicalIF":0.9,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45989465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}