Öznur Diler, Öznur Özil, Ikbal Demet Nane, Mevlüt Nazıroğlu, M. Minaz, R. Aslankoç, O. Ozmen, Kamil Atsatan
{"title":"The Effects of Bisphenol A on Oxidative Stress, Antioxidant Defence, Histopathological Alterations and Lysozyme Activity in Narrow-Clawed Crayfish (Pontastacus leptodactylus)","authors":"Öznur Diler, Öznur Özil, Ikbal Demet Nane, Mevlüt Nazıroğlu, M. Minaz, R. Aslankoç, O. Ozmen, Kamil Atsatan","doi":"10.4194/trjfas19877","DOIUrl":"https://doi.org/10.4194/trjfas19877","url":null,"abstract":"This study aimed to investigate of bisphenol A (BPA) on histopathological tissue (hepatopancreas and gills), immune ability (lysozyme activity), oxidative stress and antioxidant defence in crayfish (Pontastacus leptodactylus). Crayfish were exposed to BPA to various concentrations (0 (control), and 10, 50, 100 μg/L) for 5 and 20 days in triplicates. Histopathological findings showed moderate to severe hyperemia and inflammatory cell infiltrations, irregular epithelial cell arrangements, degeneration, necrosis and sloughing at the cells, collapse of the hepatopancreas tubules and hyperemia, oedema and sloughing at the epithelial cells of gills. In addition to swelling of gills, accumulation of hemocytes in the hemocoelic space of the gill lamellae relating to dosage were noticed. Antioxidant-related enzyme activities which superoxide dismutase (SOD), Glutathione-S-transferase GST, and glutathione reductase (GR) activity in 10, 50, 100 μg/L BPA group were significantly lower than control at 5 days (p<0.05). Lysozyme activity (LSZ) was no significantly enhanced according to control (p>0.05). These results suggest that the alterations in the antioxidant enzymes and the histological structure of the hepatopancreas, and gill tissue of crayfish can be used as potential biomarkers for risk assessment in aquatic ecosystem.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41425703","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":"Evaluation of Fish School Resources in Shallow Sea Based on Echo Statistic Method","authors":"Yongxian Wang, Jifeng Si, Yaobin Wang, Xue Li, Xiaoliang Xu, Guoqing Ci","doi":"10.4194/trjfas21344","DOIUrl":"https://doi.org/10.4194/trjfas21344","url":null,"abstract":"In order to obtain the spatial-temporal distribution of fish resources together with its changes in sea ranching, and realize the acoustic monitoring and evaluation of fish resource proliferation in sea ranching, the acoustic evaluation technology of fish resources based on the echo statistics method is researched in this paper. Firstly, the simulation is conducted by constructing the fish school echo signal based on the Kirchhoff-ray model, and the simulation results show that the echo statistics method is suitable for acoustic monitoring of fish stocks in sea ranching. Then, the self-developed fish finder was used to survey the national sea ranching demonstration area in the western waters of Furong Island in Shandong Province by navigating in November 2020 and March 2021 respectively. The data obtained from the two voyages were post-processed using the echo statistics method, and the density changes and activities of the fish schools in different times and regions in the surveyed sea were obtained. The analysis results show that the echo statistics method is suitable for the monitoring and evaluation of fishery resources in the sea ranching area.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49261992","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":"Effects of Partial and Full Dietary Substitution of Fish Meal and Soybean Meal by Sunflower Meal on Growth Performance, Feed Consumption, Body Indices, Serum Chemistry and Intestine Morphology of Oreochromis niloticus","authors":"M. Iqbal, A. Yaqub, M. Ayub","doi":"10.4194/trjfas20784","DOIUrl":"https://doi.org/10.4194/trjfas20784","url":null,"abstract":"A 03-months feeding experiment was designed to study the effects of partial and full dietary substitution of fish meal and soybean meal with sunflower meal (SFM) on growth performance, feed consumption, body indices, serum chemistry and intestine morphology of Oreochromis niloticus. Five isonitrogenous and isocaloric dietary treatments: T1, T2, T3, T4 and T5 were prepared by supplementing SFM at 0%, 25%, 50%, 75% and 100% respectively and fed to fish (4 ± 0.07 g) in triplicates. The growth performance and feed consumption in O. niloticus was significantly (p < 0.05) improved and body indices was significantly reduced in groups fed with T1 (control), T2 and T3 however, survival rate was remained unaffected among all dietary treatments. Significantly increased whole-body protein, serum total protein and albumin content was found in groups fed with T1 (control), T2 and T3, compared to T4 and T5 groups whereas, whole-body lipid content was significantly elevated in T5 group. In contrast, serum glutamic-pyruvic transaminase (SGPT) and glutamic-oxalacetic transaminase (SGOT) activity was significantly elevated in groups fed with T4 and T5. Additionally, serum triglycerides and cholesterol level were significantly increased in group T1 compared to other groups however, glucose and creatinine were not affected by dietary treatments. Uran`s pooled score for intestinal histology was significantly increased in SFM supplemented treatments as compared to control group. In conclusion, replacement of SBM with SFM up to 50% is possible without negative impacts on growth performance and health status of O. niloticus.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47401702","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}
Safak Seyhaneyildiz Can, Elif Seyhaneyildiz, M. Dorucu
{"title":"The Effects of Probiotic-Prebiotic on the Biomass and Protein Content of Spirulina platensis in Different Temperatures and Illuminations","authors":"Safak Seyhaneyildiz Can, Elif Seyhaneyildiz, M. Dorucu","doi":"10.4194/trjfas20844","DOIUrl":"https://doi.org/10.4194/trjfas20844","url":null,"abstract":"The blue-green algae Spirulina platensis Geitler 1925 has been used by people since ancient times due to its high protein content. This study was conducted to determine the effect of a Probiotic-Prebiotic (P-P) product, which contains Bifidobacterium infantis, Bifidobacterium thermophilum, Leuconostoc mesenteroides as probiotic bacteria, and beta-glucan and oligosaccharide as a prebiotic mixture on S. platensis. In the study, four groups were one of which was a control. In this study, we investigated whether the P-P product contributed to the biomass development and protein production of S. platensis under different temperatures and lighting conditions. In terms of biomass, the P-P product gave different responses at different temperatures and light intensities, but its results were positive in all groups in terms of protein ratio. The most positive effect on biomass and protein content was in the group where 0.1 ml/L P-P product was added, at 40°C and 3200 lux with 68.71% protein content and an average OD of 0.727.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42447390","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 Germ Cell Proliferation and Maturation Patterns in Indian Major Carp, Labeo Rohita (Hamilton, 1822) and Tilapia, Oreochromis Niloticus (Linnaeus, 1758)","authors":"Bibekananda Panda, Gopi Krishna Ogirala, Sanjeet Manna, D. Verma, Samanta Luna, Routray Padmanav","doi":"10.4194/trjfas20810","DOIUrl":"https://doi.org/10.4194/trjfas20810","url":null,"abstract":"The present work assessed the seasonal changes in germ cells (GC) and the maturation of rohu, Labeo rohita and tilapia, Oreochromis niloticus. Here, we showed two species representing two diverse types of spawning behavior, having two distinct GC proliferation and spawning patterns. During July, a single peak spawning season for rohu was recorded with the highest GSI (female: 19.5±1.29 and male 4.2±0.24), which is the peak monsoon time in Eastern India. However, two peak spawning seasons were marked in tilapia during the pre-monsoon (April) and post-monsoon (October) period with GSI values of male: 0.9±0.21, female: 3.9±1.32 and male: 1.1±0.3, female: 4.4±1.1 respectively. Gonadal histology in synchrony with GSI provides insights into the effects of various seasonal climate changes on the reproductive status of fish. Further, GC ultra-structure revealed various development stages in rohu and tilapia in different seasons using a scanning electron microscope. Here, comparative models were proposed for GC proliferation and maturation during different parts of the year in rohu and tilapia that may be used to plan breeding programs and hatchery management of these two species.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41470397","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}
Jaksuma Pongsetkul, S. Benjakul, S. Boonanuntanasarn, J. Yongsawatdigul
{"title":"Sensory Characteristics and Microbiological Quality Changes of Nile Tilapia Fillet Processed by Various Sous-vide Conditions During Chilled Storage","authors":"Jaksuma Pongsetkul, S. Benjakul, S. Boonanuntanasarn, J. Yongsawatdigul","doi":"10.4194/trjfas21079","DOIUrl":"https://doi.org/10.4194/trjfas21079","url":null,"abstract":"Sensory characteristics and microbiological quality of Nile tilapia cooked with various sous-vide (SV) conditions including 50 and 60°C, for 30, 45 and 60 min (S5-30, S5-45, S5-60, S6-30, S6-45 and S6-60) and their changes during storage (4°C) were investigated, compared with control (cooking with boiling water). The result found that increasing temperature and time of SV accelerated protein degradation, both myofibrillar protein and connective tissue. This affected to the lower water-holding capacity (WHC) and shear force of samples treated with severe SV conditions (S6-45 and S6-60) (P<0.05). SV technique may less contribution to the flavor formation, particularly lipid oxidation products, since there were no differences in total volatile base nitrogen (TVB-N) content and thiobarbituric acid reactive substances (TBARS) value among all samples (P>0.05). However, SV cooked samples had higher sensory scores than control, both at day 0 (before storage) or throughout the storage time. This suggested the potential to improve consumer acceptability by this technique. In this study, SV at 60°C, 60 min seem to be the optimal condition for tilapia fillet, which can preserve at 4℃ for at least 6 weeks without any spoilage.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45286423","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}
Junhui Liang, Jia Xu, Shi‐wei Xie, Junming Cao, B. Tan
{"title":"Selection of Appropriate Housekeeping Genes for Gene Expression Normalization in Hybrid Grouper (Epinephelus fuscoguttatus ♀ × E. lanceolatus ♂)","authors":"Junhui Liang, Jia Xu, Shi‐wei Xie, Junming Cao, B. Tan","doi":"10.4194/trjfas20646","DOIUrl":"https://doi.org/10.4194/trjfas20646","url":null,"abstract":"Since lots of researches using qPCR technique have addressed gene expression in groupers, the suitable housekeeping genes are needed to obtain reliable and precise results. In this study, by using different mathematical algorithms (Genorm, normFinder, BestKeeper and comparative ΔCt method) and the comprehensive ranking software (RefFinder), the stability of seventeen housekeeping genes were assessed in eleven tissues of the hybrid grouper (Epinephelus fuscoguttatus ♀ × E. lanceolatus ♂). Results showed that the stability of housekeeping genes were various in different tissues and the newly identified housekeeping genes were likely more stable than that of commonly used. In conclusion, the expression stability of housekeeping genes showed a tissue-specific manner, and the conserved oligomeric Golgi complex subunit 5 (cog5) and peroxisomal biogenesis factor 14 (pex14) could be universally used as appropriate housekeeping genes across different tissues in hybrid grouper. The present study provides the foundation for more accurate results of qPCR assay in hybrid grouper and other groupers.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45054872","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":"Hotspot Habitat Modeling of Skipjack Tuna (Katsuwonus pelamis) in the Indian Ocean by Using Multisatellite Remote Sensing","authors":"Ali Haghi Vayghan, Ming-An Lee","doi":"10.4194/trjfas19107","DOIUrl":"https://doi.org/10.4194/trjfas19107","url":null,"abstract":"Skipjack tuna (SKJ) is one of the most targeted fish species globally, especially in the Indian Ocean. SKJ fishery data from Iranian purse seiners and multisatellite remote sensing data were used for hotspot habitat modeling from 2010 to 2018. Spatial and temporal variables were the most important predictors in the generalized additive model (GAM), and 58.6% of the variance was explained. In the MaxEnt model, sea surface temperature (SST), eddy kinetic energy (EKE), and sea surface height (SSH) were the most important predictors of SKJ hotspot habitat suitability in the tropical Indian Ocean between 2°S and 2°N. Furthermore, of the total studied area in the Indian Ocean defined as optimal habitat (habitat suitability index>0.6), 6.8% and 5.3% exhibited ordinary habitat suitability (AUC=0.934, P<0.01) and hotspot habitat suitability (AUC=0.952, P<0.01), respec tively. Iranian purse seiners are distributed mainly in tropical areas, and in the present study, SKJ habitat was affected by environmental variables, as determined using multisatellite remote sensing data. In general, for effective regional monitoring and management strategies to ensure sustainable fisheries, diverse datasets compiled using satellite datasets and habitat modeling can help identify potential hotspot habitats, thereby enabling more accurate suitable habitat zone predictions and more efficient stock management.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47473160","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}
Mehdi Taati Keley, Amir Homayoun Keihan, M. Nobakht, M. Rezaei
{"title":"Effects of Supercritical CO2 on Quantity and Quality of Extracted Oil from Myctophidae Fish and Comparison It with the Wet Pressing as a Commercial Method","authors":"Mehdi Taati Keley, Amir Homayoun Keihan, M. Nobakht, M. Rezaei","doi":"10.4194/trjfas21017","DOIUrl":"https://doi.org/10.4194/trjfas21017","url":null,"abstract":"The aim of this study was investigation the effects of different methods (wet pressing: WP and supercritical fluid extraction: SFE) of oil extraction from lantern fish (Myctophidae) in terms of quantity and quality. Results showed there was no significant difference in oil production rate (p>0.05), but there was a significant difference between detected volatile components (alkanes, aldehydes, amines and acetic acid) (p<0.05). Some of Neutral lipids (Wax Esters (WE), Triacylglycerol (TAG) and Free Fatty Acids (FFA)) showed significant difference (p<0.05) and Cholesterol (CHOL) levels did not show significant differences between treatments (p<0.05). Also, fatty acid profiles showed the level of DHA in SFE treatment was significantly higher than WP (p<0.05). The acidity value (AV) did not show a significant difference (p<0.05). Also, the amount of heavy metals (Mercury (Hg), arsenic (As), cadmium (Cd) and lead (Pb)) in extracted oils by SFE was lower than the other method (p<0.05). Therefore, the results of this study indicate the potential of lantern fish for extraction of fish oil in human consumption and the SFE method for extracting it.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47701517","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}
O. Eroldoğan, M. Elsabagh, H. Sevgili, B. Glencross, M. Paolucci, M. Kumlu, Enes Kınay, Ece Evliyaoğlu, H. Yılmaz, Merve Sarıipek
{"title":"Use of Poultry By-product and Plant Protein Sources in Diets of Redclaw Crayfish (Cherax quadricarinatus)","authors":"O. Eroldoğan, M. Elsabagh, H. Sevgili, B. Glencross, M. Paolucci, M. Kumlu, Enes Kınay, Ece Evliyaoğlu, H. Yılmaz, Merve Sarıipek","doi":"10.4194/trjfas21188","DOIUrl":"https://doi.org/10.4194/trjfas21188","url":null,"abstract":"A total of 300 juvenile crayfish (13.0±0.03 g) were randomly distributed among 5 dietary groups (n=60, 3 replicates) held within 15×500 L-1 fiberglass tanks connected to a recirculation system (RAS), at 20 crayfish per tank. Each group was fed for 12 weeks one of five experimental diets where the main protein sources were: 1) control, fish-meal-based diet (FM, 48% of the diet); 2) 10% FM + 52.5% poultry by-product meal (PoM); 3) 34.5% soybean meal + 34.5% corn gluten meal (Pmix); 4) 34.5% PoM + 32.soybean/corn gluten meal mix (PoM/Pmix); and 5) 10% FM + 27.5% soybean + 27.5% corn gluten meal (FM/Pmix). The results demonstrated that there were no significant differences among diets in terms of growth and feed utilization efficiency. Muscle amino acid profile of redclaw crayfish fed the FM diet had the highest level of total essential amino acids, followed by FM/PMix, Pmix, PoM/Pmix, and PoM diets. Particularly, in all experimental groups, the highest essential amino acids (EAA) were lysine, arginine, and leucine. Based on these findings, we conclude that redclaw can perform well with FM-free vegetable diets and PoM-based diets although more research is needed into the total composition of EAA and FA in muscle.","PeriodicalId":23978,"journal":{"name":"Turkish Journal of Fisheries and Aquatic Sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44716724","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}