Acta Ichthyologica Et Piscatoria最新文献_第9页

Age, growth, mortality, and exploitation rate of blueline snapper, Lutjanus coeruleolineatus (Actinopterygii: Perciformes: Lutjanidae), from Dhofar Governorate, Sultanate of Oman 阿曼苏丹国佐法尔省蓝线笛鲷的年龄、生长、死亡率和利用率

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-07-12 DOI: 10.3897/AIEP.51.63572

Dawood Al-Mamari, S. Rabia, J. Park, L. Jawad

{"title":"Age, growth, mortality, and exploitation rate of blueline snapper, Lutjanus coeruleolineatus (Actinopterygii: Perciformes: Lutjanidae), from Dhofar Governorate, Sultanate of Oman","authors":"Dawood Al-Mamari, S. Rabia, J. Park, L. Jawad","doi":"10.3897/AIEP.51.63572","DOIUrl":"https://doi.org/10.3897/AIEP.51.63572","url":null,"abstract":"The blueline snapper, Lutjanus coeruleolineatus (Rüppell, 1838), is a significant commercial fish species harvested from the traditional fishery in the Sultanate of Oman. Deficient data on this species, however, make the management strategies challenging, especially in fisheries ecology. A total of 978 specimens were obtained from Dhofar Governorate off the coast of the Arabian Sea during the period between February 2015 and March 2016. In total, 296 sectioned otoliths were analyzed and growth was estimated from non-seasonal growth by using von Bertalanffy method. The parameters of von Bertalanffy growth function, total mortality (Z), natural mortality (M), fishing mortality (F), and exploitation rate (E) were determined and compared with those for Lutjanidae fishes elsewhere. The age structure of male fishes was between 1 and 14 years for males while the age of females ranged from 1 to 18 years. Growth rate (K) was 0.21 y–1 and 0.16 y–1 for males and females, respectively. The hypothetical length of female (L∞ = 46 cm) was relatively higher than that of male (L∞ = 42 cm). The natural mortality (M) was 0.296, total mortality (Z) was 0.372, fishing mortality was 0.076, and exploitation rate (E) was estimated as 0.2. The presently reported study is conducted to examine this fish in relation to growth parameters by analyzing otolith structure. The results of the presently reported study will contribute towards planning the regional fishery management policies in Oman.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44274958","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}

引用次数: 2

A new record of the brassy chub, Kyphosus vaigiensis (Actinopterygii: Perciformes: Kyphosidae), from the Mediterranean Sea 黄颡鱼的一个新记录，原产于地中海

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-07-12 DOI: 10.3897/AIEP.51.64069

Lilia Labiba Groud, L. Chaoui, M. Kara

引用次数: 2

Mistaken by dots: Revealing the misidentification of Saurida lessepsianus (Actinopterygii: Aulopiformes: Synodontidae) along the west coast of India (eastern Arabian Sea) 点错:揭示了印度西海岸(阿拉伯海东部)的小sepsianus(放线翼目:栉形目:齿形目)的误认

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-07-12 DOI: 10.3897/AIEP.51.63741

S. Silpa, M. Srihari, A. Pavan-Kumar, S. K. Roul, B. Russell, A. Jaiswar

引用次数: 3

Investigating otolith mass asymmetry in six benthic and pelagic fish species (Actinopterygii) from the Gulf of Tunis 突尼斯湾六种底栖和中上层鱼类（Actinopterygii）耳石质量不对称性的调查

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-07-12 DOI: 10.3897/AIEP.51.64220

N. Bouriga, M. Mejri, Monia Dekhil, S. Bejaoui, J. Quignard, M. Trabelsi

{"title":"Investigating otolith mass asymmetry in six benthic and pelagic fish species (Actinopterygii) from the Gulf of Tunis","authors":"N. Bouriga, M. Mejri, Monia Dekhil, S. Bejaoui, J. Quignard, M. Trabelsi","doi":"10.3897/AIEP.51.64220","DOIUrl":"https://doi.org/10.3897/AIEP.51.64220","url":null,"abstract":"Otolith mass asymmetry can significantly affect the vestibular system functionalities; usually, the X values of mass asymmetry vary between −0.2 and + 0.2 (−0.2 < X < + 0.2). These values can change during a fish life and therefore they are not related to the fish total length. We collected a total of 404 fish specimens from the Gulf of Tunis, including three pelagic species: Sardina pilchardus (Walbaum, 1792) (74 otolith pairs), Trachurus mediterraneus (Steindachner, 1868) (66 otolith pairs), and Chelon auratus (Risso, 1810) (60 otolith pairs) and three benthic species: Gobius niger Linnaeus, 1758 (77 otolith pairs), Mullus barbatus Linnaeus, 1758 (60 otolith pairs), and Trachinus draco Linnaeus, 1758 (67 otolith pairs). The relation between the total length and the otolith mass asymmetry was first calculated and compared, and then was evaluated. The comparison of the otolith mass asymmetry between benthic and pelagic species showed a significant difference (P < 0.05), where the absolute mean value of X does not exceed the critical value (0.2) for all the studied species. No relation has been found between the magnitude of the otolith mass asymmetry and the length in both benthic and pelagic specimens. Environmental factors have an indirect effect on somatic growth and otolith accretion. The significant difference found in this study can be due to the difference between the benthic and pelagic environments.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48113150","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}

引用次数: 4

Southward range extension of the goldeye rockfish, Sebastes thompsoni (Actinopterygii: Scorpaeniformes: Scorpaenidae), to northern Taiwan 金眼石斑鱼的南部延伸至台湾北部

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-07-12 DOI: 10.3897/AIEP.51.68832

Tak-Kei Chou, Chi-Ngai Tang

引用次数: 2

Short-term change in fish assemblages after the passage of a typhoon in a temperate, coastal bay 温带沿海海湾台风过后鱼类组合的短期变化

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-07-12 DOI: 10.3897/AIEP.51.63622

Mitsuharu Yagi

{"title":"Short-term change in fish assemblages after the passage of a typhoon in a temperate, coastal bay","authors":"Mitsuharu Yagi","doi":"10.3897/AIEP.51.63622","DOIUrl":"https://doi.org/10.3897/AIEP.51.63622","url":null,"abstract":"To study the effects of a typhoon on a temperate, coastal bay community, the species composition, catch amount, and diversity of epipelagic fish assemblages were investigated. Fish samples were taken from catches of a purse seine fishery in Tachibana Bay, Japan between May and July 2011, covering before and after the passage of a typhoon in the area. Although major changes in total catch amount were not observed before and after the passage of the typhoon, the abundance of the Japanese anchovy, Engraulis japonicus Temminck et Schlegel, 1846, markedly decreased and bycatch of species increased, accompanied by increasing levels of diversity of the fish assemblage. Multivariate analysis showed that community differences before and after the passage were quantitative rather than qualitative. Comparisons in total length frequencies between the two periods indicated that specimens of the species compared were bigger in size for Trachurus japonicus (Temminck et Schlegel, 1844) and smaller for E. japonicus in the “after” period. These results suggest that the passage of the typhoon triggered not only interspecific faunal change but also intraspecific recruitment shifts in and around the bay.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42770125","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}

引用次数: 1

Stocking density effect on survival and growth of early life stages of maraena whitefish, Coregonus maraena (Actinopterygii: Salmoniformes: Salmonidae) 放养密度对马氏白鱼Coregonus maraena早期生存和生长的影响（放线菌目：三文鱼形目：三文鱼科）

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-06-14 DOI: 10.3897/AIEP.52.64119

V. Stejskal, J. Matoušek, R. Sebesta, J. Nowosad, Mateusz Sikora, D. Kucharczyk

{"title":"Stocking density effect on survival and growth of early life stages of maraena whitefish, Coregonus maraena (Actinopterygii: Salmoniformes: Salmonidae)","authors":"V. Stejskal, J. Matoušek, R. Sebesta, J. Nowosad, Mateusz Sikora, D. Kucharczyk","doi":"10.3897/AIEP.52.64119","DOIUrl":"https://doi.org/10.3897/AIEP.52.64119","url":null,"abstract":"The maraena whitefish, Coregonus maraena (Bloch, 1779), is often considered a suitable candidate for intensive aquaculture diversification in the EU. However, only a few such farms in Europe are in operation. Rearing this species in recirculating aquaculture systems is a recent innovation, and optimisation is necessary to standardise aspects of larviculture. This 30-day study investigated the effect of stocking densities of 25/L, 50/L, 100/L, and 200/L on the survival and growth of maraena whitefish larvae in a recirculating aquaculture system. The four groups of larvae (initial weight = 7.4 ± 0.1 mg; initial total length = 13.0 ± 0.1 mm) in three repetitions were reared in a recirculating system. Larvae were fed fresh live brine shrimp metanauplii every 3 h at a rate converted to larval stocking density. After the experiment, 10 larvae from each tank (30 of each density group) were weighed on a digital microbalance (ABJ 220-4M KERN, Germany, readout = 0.1 mg) and measured manually on images taken with Leica MZ16 A stereomicroscope and a digital colour camera with 5-megapixel resolution for Leica DFC420 Image Analysis. No significant differences in final body weight, total length, size heterogeneity, condition factor, or survival were found among treatments (P > 0.05). The highest non-significant survival rate and growth parameters were observed in larvae reared at 25/L. On the contrary, it is possible to rear maraena whitefish larvae at high stocking density without any subsequent negative consequences for growth and survival. As no significant differences in any evaluated parameter were observed between groups of larvae at the highest and lowest stocking density, we conclude that it is possible to rear maraena whitefish larvae at high stocking density (and 200/L) without any subsequent negative consequences for growth and survival.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":"51 1","pages":"139-144"},"PeriodicalIF":1.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45878196","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}

引用次数: 4

CROSS-SPECIES AMPLIFICATION OF MICROSATELLITES AND IDENTIFICATION OF POLYPLOID HYBRIDS BY ALLELE DOSAGE EFFECTS IN COBITIS HANKUGENSIS AND IKSOOKIMIA LONGICORPA HYBRID COMPLEX 利用等位基因剂量效应对韩寒刀刺与长果刀刺杂交复合体微卫星的跨种扩增及多倍体杂种的鉴定

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-06-09 DOI: 10.3897/arphapreprints.e69914

S. Yun, J. Park, K. Janko

{"title":"CROSS-SPECIES AMPLIFICATION OF MICROSATELLITES AND IDENTIFICATION OF POLYPLOID HYBRIDS BY ALLELE DOSAGE EFFECTS IN COBITIS HANKUGENSIS AND IKSOOKIMIA LONGICORPA HYBRID COMPLEX","authors":"S. Yun, J. Park, K. Janko","doi":"10.3897/arphapreprints.e69914","DOIUrl":"https://doi.org/10.3897/arphapreprints.e69914","url":null,"abstract":"Background. During the course of evolution, numerous taxa abandoned canonical sex and reproduced asexually. Examination of the Cobitis hankugensis - Iksookimia longicorpa asexual complex already revealed important evolutionary discoveries tackling phenomena like interspecific hybridization, non-Mendelian inheritance, polyploidy and asexuality. Yet, as in other similar cases, the investigation is hampered by the lack of easily accessible molecular tools for efficient differentiation among genomotypes.\u0000 Material and methods. Here, we tested the cross-species amplification of 23 microsatellite markers derived from distantly related species and investigated the extent to which such markers can facilitate the genome identification in non-model hybrid complex.\u0000 Results. We found that 21 out of 23 microsatellite markers amplified in all genomotypes. Five of them could be used for easy diagnosticity of parental species and their hybrids due to species-specific amplification profiles. We also noted that three markers, i.e. IC654 and IC783 derived from Cobitis choii and Iko_TTA01 from Iksookimia koreensis, had dosage-sensitive amplification efficiencies of species-specific alleles. This could be further used for reliable differentiation of genome composition in polyploids.\u0000 Conclusions. The present study introduces a noninvasive method applicable for diagnosis of ploidy and genome composition of hybrids, which are not clearly distinguished morphologically. We showed that very detailed information may be obtained even from markers developed in distantly related taxa.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43333257","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}

引用次数: 0

A nitrogen factor for European pike-perch (Sander lucioperca), northern pike (Esox lucius), and sheatfish (Silurus glanis) fillets 欧洲梭鲈(Sander lucioperca)，北方梭鱼(Esox lucius)和棘鱼(Silurus glanis)鱼片的氮因子

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-06-08 DOI: 10.3897/AIEP.51.63281

A. Honzlová, H. Curdova, L. Schebestova, A. Stara, J. Příborský, A. Koubová, Z. Svobodová, J. Velíšek

{"title":"A nitrogen factor for European pike-perch (Sander lucioperca), northern pike (Esox lucius), and sheatfish (Silurus glanis) fillets","authors":"A. Honzlová, H. Curdova, L. Schebestova, A. Stara, J. Příborský, A. Koubová, Z. Svobodová, J. Velíšek","doi":"10.3897/AIEP.51.63281","DOIUrl":"https://doi.org/10.3897/AIEP.51.63281","url":null,"abstract":"Measures for consumer protection against food adulteration and misleading labeling are integrated into EU legislation, including methods for detection of misleading practices. Verification of meat content is available for marine products but not for freshwater fish because of the lack of standard nitrogen factors. The aim of this study was to establish nitrogen factors for European pike-perch Sander lucioperca (Linnaeus, 1758), northern pike Esox lucius Linnaeus, 1758, and sheatfish Silurus glanis Linnaeus, 1758. The study involved analysis of 808 fillet samples obtained in spring (March–April) and autumn (October–November) harvest seasons, 2018–2019, from seven Czech Republic fish rearing facilities. Samples with and without skin were analyzed for nitrogen content, dry matter, protein, ash, and fat according to established ISO methods. The recommended nitrogen factor for European pike-perch with the skin is 3.28 ± 0.09 and without the skin is 3.21 ± 0.09; for northern pike with the skin is 3.18 ± 0.09 and without skin is 3.15 ± 0.09; and for sheatfish with skin is 2.73 ± 0.13 and without skin is 2.75 ± 0.12. The established nitrogen factors will enable analysis of meat content to ensure that consumers are purchasing correctly described and labeled fish products.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":"51 1","pages":"119-129"},"PeriodicalIF":1.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45535650","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}

引用次数: 1

Alteration of the feeding behavior of an omnivorous fish, Scardinius acarnanicus (Actinopterygii: Cypriniformes: Cyprinidae), in the presence of fishing lights 鱼灯照射下杂食性鱼cardinius carnanicus摄食行为的变化(放线翼目:鲤科:鲤科

IF 1 4区农林科学

Acta Ichthyologica Et Piscatoria Pub Date : 2021-06-08 DOI: 10.3897/AIEP.51.63299

Lambros Tsounis, George Kehayias

{"title":"Alteration of the feeding behavior of an omnivorous fish, Scardinius acarnanicus (Actinopterygii: Cypriniformes: Cyprinidae), in the presence of fishing lights","authors":"Lambros Tsounis, George Kehayias","doi":"10.3897/AIEP.51.63299","DOIUrl":"https://doi.org/10.3897/AIEP.51.63299","url":null,"abstract":"Fishing with light is an old and common practice yielding a substantial catch volume globally. Despite the popularity of the method and the efforts to improve it, there is a lack of field studies on the effects of light on the feeding preferences of the attracted fishes. A previous report suggested that purse seine fishing lights can differentiate the feeding preferences of the approaching fishes, such as Atherina boyeri Risso, 1810 in Lake Trichonis (Greece). The presently reported study aims to verify these findings by investigating the diet of the endemic Scardinius acarnanicus Economidis, 1991. The feeding behavior of S. acarnanicus was studied from 2016 to 2019 through gut content analysis, in specimens from Lake Trichonis that came from purse seining with light and specimens caught without light. The same investigation was carried out comparatively in specimens taken by gillnets from two nearby lakes (lakes Ozeros and Amvrakia), where S. acarnanicus is present, but no fishing with light is exercised. The stomach content analysis conducted on 699 S. acarnanicus specimens revealed the intense effect of light on its diet resulting in the alteration of its feeding habits towards fish predation and especially Atherina boyeri. On the contrary, the specimens taken with the use of gillnets, from the three lakes, showed a typical omnivorous feeding behavior. The findings of the presently reported study support the assumption that the elevated concentration of fish close to fishing lights alters the feeding behavior of certain species making them predators. Considering that fishing with light is practiced worldwide, this could be of great ecological significance to the ichthyofauna not only of inland waters but also of marine areas, affecting perhaps several commercial species.","PeriodicalId":6950,"journal":{"name":"Acta Ichthyologica Et Piscatoria","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41352634","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}

引用次数: 3