New records of Triplophysa strauchii (Kessler, 1874) (Teleostei, Nemacheilidae) from the Zeravshan river drainage, Uzbekistan
Sharofiddin KhalimovDepartment of Zoology and General Biology, Faculty of Life Sciences, Fergana State University, Fergana, UzbekistanMurodjon RakhmonovDepartment of Zoology and General Biology, Faculty of Life Sciences, Fergana State University, Fergana, UzbekistanSheng LiKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing, ChinaObboskhon AzamovDepartment of Zoology and General Biology, Faculty of Life Sciences, Fergana State University, Fergana, UzbekistanZuogang PengKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing, ChinaBakhtiyor SheralievDepartment of Zoology and General Biology, Faculty of Life Sciences, Fergana State University, Fergana, Uzbekistan
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Abstract
We report new records of Triplophysa strauchii (Kessler, 1874) from the middle Zeravshan river drainage in Uzbekistan. Previously, within this drainage, the species was known only from the upper reaches of this river in Tajikistan. Morphological and molecular (COI) analyses of specimens collected in 2022 and 2024 confirm that these specimens are conspecific with populations from the Syr Darya drainage. These findings document a significant westward range expansion of T. strauchii in the Zeravshan River. Specifically, the record from Narpay District represents the westernmost known limit of this species’ distribution, highlighting its continued westward expansion in Central Asia.
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