Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China
The lower reaches of the Yarlung Zangbo River are one of the most important biodiversity hotspots worldwide. With the rapid economic development in the area coupled with global climate change, the fish resources and diversity of this region are experiencing serious threats. Basic biological informat...
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2025-01-01
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| author | Huiping Ding Mantang Xiong Yang Yang Tian Zhong Feng Chen Yutian Gong Dongya Zhang Sijin Jiang Zhiming Zhang |
| author_facet | Huiping Ding Mantang Xiong Yang Yang Tian Zhong Feng Chen Yutian Gong Dongya Zhang Sijin Jiang Zhiming Zhang |
| author_sort | Huiping Ding |
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| description | The lower reaches of the Yarlung Zangbo River are one of the most important biodiversity hotspots worldwide. With the rapid economic development in the area coupled with global climate change, the fish resources and diversity of this region are experiencing serious threats. Basic biological information on most fishes in the river is limited, restricting the conservation of local fish resources. This study aimed to provide estimates of length–weight relationships (LWRs) for six fish species from the lower Yarlung Zangbo River catchment, Tibet, China. From 2023 to 2024, 4034 specimens belonging to two families, five genera, and six species were collected using various types of fishing techniques. The LWRs of five species, namely <i>Schizothorax curvilabiatus</i>, <i>Schizothorax molesworthi</i>, <i>Pseudecheneis sulcata</i>, <i>Parachiloglanis hodgarti</i>, and <i>Exostoma labiatum</i> were reported for the first time to FishBase, except <i>Garra tibetana</i>. The <i>b</i> values calculated from the LWRs ranged between 2.738 and 3.172, and the <i>r</i><sup>2</sup> values for all LWRs estimates ranged from 0.931 to 0.989. Sexual variations of LWRs were observed in <i>S. molesworthi</i> and <i>P. sulcata</i>; seasonal variations were detected in <i>S. curvilabiatus</i>, <i>S. molesworthi</i>, <i>G. tibetana</i>, <i>P. sulcata</i>, and <i>P. hodgarti</i>; and geographical differences were discovered in <i>S. molesworthi</i>, <i>G. tibetana</i>, <i>P. sulcate</i>, <i>P. hodgarti</i>, and <i>E. labiatum</i>. Additionally, this study updated information for FishBase by providing a new record of maximum standard length for <i>S. curvilabiatus</i>, <i>S. molesworthi</i>, <i>G. tibetana</i>, and <i>P. hodgarti</i> and a new record of total length for <i>P. sulcata</i>. The findings of this study are essential for the management and conservation of locally indigenous fish and fisheries. |
| format | Article |
| id | doaj-art-3725a1ce25474c40b201b7d5b752bae1 |
| institution | DOAJ |
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| language | English |
| publishDate | 2025-01-01 |
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| spelling | doaj-art-3725a1ce25474c40b201b7d5b752bae12025-08-20T02:44:53ZengMDPI AGFishes2410-38882025-01-011025610.3390/fishes10020056Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, ChinaHuiping Ding0Mantang Xiong1Yang Yang2Tian Zhong3Feng Chen4Yutian Gong5Dongya Zhang6Sijin Jiang7Zhiming Zhang8Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, ChinaKey Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, ChinaKey Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, ChinaHubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, ChinaKey Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, ChinaKey Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, ChinaPower China Beijing Engineering Corporation Limited, Beijing 100024, ChinaKey Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, ChinaKey Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, ChinaThe lower reaches of the Yarlung Zangbo River are one of the most important biodiversity hotspots worldwide. With the rapid economic development in the area coupled with global climate change, the fish resources and diversity of this region are experiencing serious threats. Basic biological information on most fishes in the river is limited, restricting the conservation of local fish resources. This study aimed to provide estimates of length–weight relationships (LWRs) for six fish species from the lower Yarlung Zangbo River catchment, Tibet, China. From 2023 to 2024, 4034 specimens belonging to two families, five genera, and six species were collected using various types of fishing techniques. The LWRs of five species, namely <i>Schizothorax curvilabiatus</i>, <i>Schizothorax molesworthi</i>, <i>Pseudecheneis sulcata</i>, <i>Parachiloglanis hodgarti</i>, and <i>Exostoma labiatum</i> were reported for the first time to FishBase, except <i>Garra tibetana</i>. The <i>b</i> values calculated from the LWRs ranged between 2.738 and 3.172, and the <i>r</i><sup>2</sup> values for all LWRs estimates ranged from 0.931 to 0.989. Sexual variations of LWRs were observed in <i>S. molesworthi</i> and <i>P. sulcata</i>; seasonal variations were detected in <i>S. curvilabiatus</i>, <i>S. molesworthi</i>, <i>G. tibetana</i>, <i>P. sulcata</i>, and <i>P. hodgarti</i>; and geographical differences were discovered in <i>S. molesworthi</i>, <i>G. tibetana</i>, <i>P. sulcate</i>, <i>P. hodgarti</i>, and <i>E. labiatum</i>. Additionally, this study updated information for FishBase by providing a new record of maximum standard length for <i>S. curvilabiatus</i>, <i>S. molesworthi</i>, <i>G. tibetana</i>, and <i>P. hodgarti</i> and a new record of total length for <i>P. sulcata</i>. The findings of this study are essential for the management and conservation of locally indigenous fish and fisheries.https://www.mdpi.com/2410-3888/10/2/56length–weight relationship (LWR)spatiotemporal variationsgrowth patternconservation of fishesthe Yarlung Zangbo River |
| spellingShingle | Huiping Ding Mantang Xiong Yang Yang Tian Zhong Feng Chen Yutian Gong Dongya Zhang Sijin Jiang Zhiming Zhang Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China Fishes length–weight relationship (LWR) spatiotemporal variations growth pattern conservation of fishes the Yarlung Zangbo River |
| title | Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China |
| title_full | Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China |
| title_fullStr | Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China |
| title_full_unstemmed | Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China |
| title_short | Variations of Length–Weight Relationships for Six Fish Species from the Lower Yarlung Zangbo River Catchment, Tibet, China |
| title_sort | variations of length weight relationships for six fish species from the lower yarlung zangbo river catchment tibet china |
| topic | length–weight relationship (LWR) spatiotemporal variations growth pattern conservation of fishes the Yarlung Zangbo River |
| url | https://www.mdpi.com/2410-3888/10/2/56 |
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