{"title":"Triplophysa shannanensis, a New Species of Tibetan Stone Loach (Nemacheilidae) from the Yarlung Tsangpo-Brahmaputra River, Tibet","authors":"M. Wang, J. Huang, Y. Chen, D. He","doi":"10.1134/s0032945224020164","DOIUrl":"https://doi.org/10.1134/s0032945224020164","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A new species, <i>Triplophysa shannanensis</i> sp. nov., is described from the Yarlung Tsangpo-Brahmaputra River based on morphological and genetic analyses. The new species is distinguished from its congeners by the following combination of characters: posterior chamber of swim bladder developed, ovoid, directly connects to the anterior chamber; intestine short, zigzag-shaped and with two loops; lower jaw spoon-like, blunt, and covered by lips; snout length shorter than postorbital length; dorsal fin origin anterior to the ventral fin origin, and it closer to caudal fin base than tip of snout; the pelvic origin is just below vertical from the second branched dorsal fin ray, and tips of ventral fin reaching to anus or close to anal fin origin; vertebrae 4 + 36–38; gill rakers 10–11. Molecular phylogenetic analysis indicated that the new species is situated in the most basal of the genus <i>Triplophysa</i> species distributed in the Himalayan region of China. The Kimura’s 2-parameter interspecific genetic distance of the cytochrome <i>b</i> gene sequences of the new species differed from 5.6 to 20.3% with other <i>Triplophysa</i> species. Two non-native species, <i>T. dalaica</i> and <i>T</i>. <i>scleroptera,</i> were first found in the the Yarlung Tsangpo River, which would bring the number of <i>Triplophysa</i> in the Tibetan Himalaya of China to eleven species. A checklist of genus <i>Triplophysa</i> in Chinese Himalaya was further provided.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DNA Barcoding Confirms the First Record of Bleekeria nigrilinea (Ammodytidae) from the Bay of Bengal, Indian Coastal Water","authors":"","doi":"10.1134/s0032945224020115","DOIUrl":"https://doi.org/10.1134/s0032945224020115","url":null,"abstract":"<span> <h3>Abstract</h3> <p>Present study reports black-edged fin sandlance, <em>Bleekeria nigrilinea</em> Psomadakis, Yoshinaga, Wah et Ida, 2021, for the first time from the Bay of Bengal, Indian waters, on the basis of three specimens. Specimens were collected from the Shankarpur fishing harbour and identified as <em>Bleekeria nigrilinea</em> through molecular analysis and were subjected to full morphological analysis. This species has previously been reported from the Andaman Sea (Myanmar and Thailand).</p> </span>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139754899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abnormalities and Bilateral Asymmetry of Otoliths in Arctic Charr Salvelinus alpinus Complex (Salmonidae) from Lakes Lama and Kapchuk, Taimyr","authors":"D. A. Pavlov, A. G. Osinov","doi":"10.1134/s0032945224020085","DOIUrl":"https://doi.org/10.1134/s0032945224020085","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Otolith abnormalities and bilateral asymmetry are analyzed in five reproductively isolated forms and natural F1 hybrids between the forms in Arctic charr <i>Salvelinus alpinus</i> complex from lakes Lama and Kapchuk (Norilo-Pyasinskaya water system, Taimyr). Otolith abnormalities are associated with the partial replacement of aragonite (the usual otolithic polymorph of CaCO<sub>3</sub>) by vaterite (another less stable crystalline modification of CaCO<sub>3</sub>) and their unusual shape. The abnormalities are observed in 11.9% of the specimens and may be induced by technogenic pollution from Nornickel, the world’s largest manufacturer of palladium, nickel, and platinum. The assessment of bilateral asymmetry based on otolith measurements and shape indices does not indicate notable differences in this parameter between the charr forms. However, the shapes of the left and right otoliths described by wavelet analysis are significantly different in two groups: a form of Lake Kapchuk designated as the main form and F1 hybrids. The differentiation of the forms is evaluated using wavelet and linear discriminant analyses of otolith shape. The difference in the topologies of two dendrograms constructed based on the shapes of the left and right otoliths obtained from the same specimens can be explained by the occurrence of bilateral asymmetry.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139773230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Karuppiah, K. Rajendran, Y. Mariasingarayan, C. P. Kumarasamy, K. Ethiraj
{"title":"First Record of Redfin Emperor Monotaxis heterodon (Lethrinidae) from Indian Waters with Molecular Confirmation","authors":"K. Karuppiah, K. Rajendran, Y. Mariasingarayan, C. P. Kumarasamy, K. Ethiraj","doi":"10.1134/s0032945224020036","DOIUrl":"https://doi.org/10.1134/s0032945224020036","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Lethrinidae is one of the commercially important fish in India. The present study provides detailed morphometric, meristic characters and colour patterns of <i>Monotaxis heterodon</i> (Bleeker, 1854). The unique key characters of <i>M. heterodon</i> are having 24 vertebrae, the teeth patterns of both the jaws having molar teeth present in both jaws 4+3 but 6 canines in upper jaw and 4 canine teeth in lower jaw. Specifically, this species has dark brownish lips, no black spots at base of soft dorsal fin and 13 scale rows below lateral line to anal-fin origin. The <i>COI</i> gene sequence and phylogenetic analysis confirmed that <i>Monotaxis heterodon</i> and <i>Monotaxis grandoculis</i> were genetically distinct species and conform the distribution of <i>M. heterodon</i> in Indian Exclusive Economic Zone. In addition, molecular analysis using partial mitochondrial <i>COI</i> gene suggests that genetic distance within <i>M. heterodon</i> group was 0.32% of group mean distance between <i>M. heterodon</i> and <i>M. grandoculis</i> was 8.37%. Further, the present study revealed the range of extension of its known geographical distribution in addition to the ichthyofaunal biodiversity of southeast coast of India.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139754974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ontogeny of Larval Pearl-Spotted Killifish Paraphanius mento (Aphaniidae) Distributed in the Nemrut Crater Lake (Eastern Turkiye): A Histological and Microscopic Perspective","authors":"A. Sepil, F. Şen","doi":"10.1134/s0032945224020139","DOIUrl":"https://doi.org/10.1134/s0032945224020139","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In this study, it was aimed to determine the larval ontogeny of <i>Paraphanius mento</i> (Heckel, 1843), which is distributed in Nemrut Crater Lake (Bitlis, Turkiye). Additionally, embryonic and larval development stages were evaluated microscopically and histologically. Filamentous and sticky fertilized eggs has a diameter of 1.251 ± 0.316 mm with the inclusion of 8−12 oil droplets have started to hatch approximately 11 days after spawning at 23.5°C. It was determined that newly hatched larvae have a total length of around 3.695 ± 0.225 mm (<i>n</i> = 20), have started exogenous feeding at 3 day after hatching and started to take particulate baits at the end of 10 day after hatching. Digestive tract differentiation, hepatopancreas, digestive tubes and gill arches formations were examined by taking histological sections in early life stages.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139754977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Features of Biology of Tonlesapia tsukawakii (Actinopterygii, Callionymidae) in the Mekong Delta, Vietnam","authors":"","doi":"10.1134/s0032945224010028","DOIUrl":"https://doi.org/10.1134/s0032945224010028","url":null,"abstract":"<span> <h3>Abstract—</h3> <p><em>Tonlesapia tsukawakii</em> Motomura et Mukai, 2006 is an endemic freshwater representative of the family Callionymidae (Teleostei: Perciformes: Callionymidei) living in the Mekong River. According to the materials of studies conducted in 2018–2022, the occurrence of the species in catches in the Mekong Delta averaged 20.7%, the proportion in terms of abundance was 2.6%, in terms of weight, 0.6%. The maximum values of the species parameters were 81.2 ind./effort and 176.2 g/effort, respectively. The abundance of fish significantly decreased in the conditions of low content of dissolved oxygen and on a substrate with plant residues. The sex ratio of <em>T. tsukawakii</em> was 1.0 : 3.1 with a stable prevalence of females, which distinguishes the species from other representatives of the family. Females have larger sizes compared to males and they gain weight faster. The fecundity of the species was determined for the first time; the average number of mature oocytes was 2950 psc. During a low-water period, callanoid copepods of the family Pseudodiaptomidae mainly represented by <em>Pseudodiaptomus dauglishi</em> Sewell, 1932 were the main food items of <em>T. tsukawakii</em>.</p> </span>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Misgurnus anguillicaudatus (Cobitidae): a New Non-Native Species Naturalized in Water Bodies of the Balkhash-Ili Basin, Kazakhstan","authors":"","doi":"10.1134/s0032945224010107","DOIUrl":"https://doi.org/10.1134/s0032945224010107","url":null,"abstract":"<span> <h3>Abstract—</h3> <p>Based on comparative morphological studies of weatherfishes (genus <em>Misgurnus</em>) collected in the Ili River basin (Kazakhstan) in 2022, specimens from the collection of the Zoological Museum of Lomonosov Moscow State University, and literature data, it is shown for the first time that the oriental weatherfish <em>Misgurnus anguillicaudatus</em> has naturalized in the Balkhash-Ili basin.</p> </span>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Craniological Features of Sabanejewia larvata (Cobitidae) and its Divergence from S. aurata and Other Congeneric Species","authors":"E. D. Vasil’eva, V. P. Vasil’ev","doi":"10.1134/s0032945224010168","DOIUrl":"https://doi.org/10.1134/s0032945224010168","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The conducted craniological analysis of <i>Sabanejewia larvata</i> and <i>S. aurata</i> did not reveal fundamental differences in the general morphology of the skull and skull bones between them. Comparison with previously studied <i>Sabanejewia caspia</i>, <i>S. kubanica</i>, <i>S. caucasica,</i> and <i>S. aralensis</i> showed that all investigated species have species-specific values for some craniological indices. <i>Sabanejewia larvata</i> and <i>S. caspia</i> are most similar and are characterized by the lowest skull in the ethmoid region, the widest praeoperculum, the ascending process of the dentary displaced anteriorly, and the narrowest cleithrum. The obtained results confirm the validity of the subgenus <i>Andrzewia</i>. At the same time, the observed craniological divergence of <i>S. aurata</i> and <i>S. aralensis</i> testifies in favor of an independent species status of the golden loach from the Aral Sea basin. However, further genetic and morphological studies are needed.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139067345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. K. Suyani, D. T. Vaghela, S. S. Rathore, B. Sureandiran
{"title":"First Report on Biometric Analysis of Red Cornetfish Fistularia petimba (Fistulariidae) from Indian Waters","authors":"N. K. Suyani, D. T. Vaghela, S. S. Rathore, B. Sureandiran","doi":"10.1134/s0032945224010156","DOIUrl":"https://doi.org/10.1134/s0032945224010156","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The morphometric and meristic characteristics, length-length relationships (LLRs), length-weight relationships (LWRs) and relative condition factor of forty-one individuals of red cornetfish <i>Fistularia petimba</i> were studied for the first time from the North-West coast of India during February to September 2022. The maximum coefficient of variation was observed for inter-orbital length (25.85%) followed by lower jaw length (18.14%) and pectoral-fin length (16.96%). The morphometric index value was found <10% (genetically-controlled characters) for all the morphometric characters except total length with caudal filament length indicating restricted distribution. LLRs revealed isometric growth and high values of correlation coefficient (0.6109–0.9992). The <i>b</i> value of LWRs showed significant departure from 3 (<i>p</i> < 0.05) and hence negative allometric growth was recorded. The high <i>R</i><sup>2</sup> value of the LWRs indicates absolute fitness of the growth model and superior health status of the studied species. The mean condition factor value was calculated as 0.99 ± 0.04 indicating that the <i>F. petimba</i> population is in good health. Further, <i>F. petimba</i> is a reef-associated species forming a part of low-value bycatch which is mainly utilized for the preparation of fishmeal. Thus the provided morphometric and biometric information of the species will be useful for further biological, stock assessment and nutritional research in the region.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139066860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Preliminary Study on the Morphometric Features of the European Eel, Anguilla anguilla (Anguillidae) in Gediz Lagoon (Izmir Bay, the Aegean Sea): Special Emphasis to Sexual Dimorphism","authors":"S. Gurkan, E. Taskavak, B. Taylan","doi":"10.1134/s0032945224010120","DOIUrl":"https://doi.org/10.1134/s0032945224010120","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In this study, we aimed to state how we can contribute to an effective population management and protection by determining the morphometric characteristics of European yellow eels, <i>Anguilla anguilla</i> Linnaeus 1758, in the Aegean Sea population, Izmir Bay. It was found that the eye index and condition values of the female specimens are higher than those of the males. While it was determined that there was a significant difference between both sexes in 19 of 20 morphometric measurements of the head region, there was no statistical difference only in the height measurement at the nostril level of the head. In our study, the fact that specimens with ovaries were seen among the females longer than 34 cm (length group II) is remarkable in terms of early maturation in the region. The differences in head measurements between sexes indicate the existence of a dimorphic structure and these differences are in favor of female specimens.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139066866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}