{"title":"马尔马拉海是否存在第三个鱿鱼属物种？","authors":"H. Kabasakal, U. Uzer, F. S. Karakulak","doi":"10.1134/s0032945224700462","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>On 21 February 2024, 12 neonate spurdogs (Squaliformes: Squalidae) were captured with a bottom trawl towed over a sandy-muddy bottom at depths of 121–126 m in the eastern sector of the Marmara Sea. Eleven out of 12 spurdogs were identified as <i>Squalus blainville</i> (Risso, 1827), but one of the spurdogs, specimen MD6-24-SquaSp, exhibited several characteristics of both <i>S. blainville</i> and <i>S. megalops</i>. The results of this study suggest two possibilities: (1) either <i>S. blainville</i> shows a significant degree of intraspecific variability, and therefore, there is a highly differentiated variety of <i>S. blainville</i> that may occur in the Marmara Sea, or (2) there is a yet undescribed species belonging to the <i>S. megalops</i> clade that occurs in the region. This uncertainty supports the need for a genetically based taxonomic revision of the species of the genus <i>Squalus</i> in the Marmara Sea.</p>","PeriodicalId":48537,"journal":{"name":"Journal of Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Is There a Third Species of the Genus Squalus (Squalidae) Present in the Marmara Sea, or Just an Extreme Case of Intraspecific Variability of Squalus blainville?\",\"authors\":\"H. Kabasakal, U. Uzer, F. S. Karakulak\",\"doi\":\"10.1134/s0032945224700462\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>On 21 February 2024, 12 neonate spurdogs (Squaliformes: Squalidae) were captured with a bottom trawl towed over a sandy-muddy bottom at depths of 121–126 m in the eastern sector of the Marmara Sea. Eleven out of 12 spurdogs were identified as <i>Squalus blainville</i> (Risso, 1827), but one of the spurdogs, specimen MD6-24-SquaSp, exhibited several characteristics of both <i>S. blainville</i> and <i>S. megalops</i>. The results of this study suggest two possibilities: (1) either <i>S. blainville</i> shows a significant degree of intraspecific variability, and therefore, there is a highly differentiated variety of <i>S. blainville</i> that may occur in the Marmara Sea, or (2) there is a yet undescribed species belonging to the <i>S. megalops</i> clade that occurs in the region. This uncertainty supports the need for a genetically based taxonomic revision of the species of the genus <i>Squalus</i> in the Marmara Sea.</p>\",\"PeriodicalId\":48537,\"journal\":{\"name\":\"Journal of Ichthyology\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-08-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Ichthyology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1134/s0032945224700462\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Ichthyology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1134/s0032945224700462","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"FISHERIES","Score":null,"Total":0}
引用次数: 0
摘要
摘要 2024年2月21日，在马尔马拉海东部水深121-126米的沙泥底拖网捕获了12条新生匙吻鲟（Squaliformes: Squalidae）。12 条斯库尔德犬鱼中有 11 条被鉴定为 Squalus blainville（Risso，1827 年），但其中一条斯库尔德犬鱼（标本 MD6-24-SquaSp）同时表现出 S. blainville 和 S. megalops 的几个特征。这项研究结果表明了两种可能性：（1）S. blainville 具有很大程度的种内变异性，因此马尔马拉海可能存在一个高度分化的 S. blainville 变种；或者（2）该地区存在一个属于 S. megalops 支系的尚未描述的物种。这种不确定性表明，有必要对马尔马拉海的鱿鱼属物种进行基于基因的分类修订。
Is There a Third Species of the Genus Squalus (Squalidae) Present in the Marmara Sea, or Just an Extreme Case of Intraspecific Variability of Squalus blainville?
Abstract
On 21 February 2024, 12 neonate spurdogs (Squaliformes: Squalidae) were captured with a bottom trawl towed over a sandy-muddy bottom at depths of 121–126 m in the eastern sector of the Marmara Sea. Eleven out of 12 spurdogs were identified as Squalus blainville (Risso, 1827), but one of the spurdogs, specimen MD6-24-SquaSp, exhibited several characteristics of both S. blainville and S. megalops. The results of this study suggest two possibilities: (1) either S. blainville shows a significant degree of intraspecific variability, and therefore, there is a highly differentiated variety of S. blainville that may occur in the Marmara Sea, or (2) there is a yet undescribed species belonging to the S. megalops clade that occurs in the region. This uncertainty supports the need for a genetically based taxonomic revision of the species of the genus Squalus in the Marmara Sea.
期刊介绍：
Journal of Ichthyology is an international peer-reviewed journal published in collaboration with the Russian Academy of Sciences. It covers original studies in fish taxonomy, evolution, molecular biology, morphology, species diversity, zoological geography, genetics, physiology, ecology, behavior, reproduction, embryology, invasions, and protection. Some problems of applied ichthyology are also covered. The journal welcomes manuscripts from all countries in the English or Russian language.
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