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Swimming performance of a threatened native fish (Gymnocypris przewalskii) informs fishway design in Qinghai Lake.

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Title: Swimming performance of a threatened native fish (Gymnocypris przewalskii) informs fishway design in Qinghai Lake.
Authors: Ke, Senfan1,2 (AUTHOR), Yang, Sen2 (AUTHOR), Tu, Zhiying1,2 (AUTHOR) zytu1111@163.com, Soomro, Shan-e-hyder1 (AUTHOR), Ji, Huaiyao3 (AUTHOR), Li, Dongqing2 (AUTHOR), Xu, Jiawei4 (AUTHOR), Qi, Hongfang5 (AUTHOR), Shi, Xiaotao1,2 (AUTHOR) fishlab@163.com
Source: Hydrobiologia. Sep2025, Vol. 852 Issue 16, p3997-4012. 16p.
Subjects: Endangered species, Fishways, Lakes, Rare fishes, Swimming training, Salinity, Anadromous fishes, Sexual dimorphism
Geographic Terms: China, Qinghai Lake (China)
Abstract: The endangered anadromous naked carp Gymnocypris przewalskii is a rare fish species found in Qinghai Lake, China. Studying the swimming abilities of naked carp is crucial for enhancing the design of passageways for these unique fish. Two regression models were employed to assess the influence of salinity, water temperature, body size, and gender on induced flow velocity (Uind), critical swimming speed (Ucrit), burst swimming speed (Uburst), and endurance in naked carp. The findings pointed toward the fact that larger fish under-performed smaller fish for (Uind), (Ucrit), (Uburst), and endurance. Male fish generally attained higher (Uind), (Ucrit), (Uburst), and endurance than female fish. Naked carp in saltwater demonstrated a higher level of (Uind), (Ucrit), and (Uburst) than freshwater. The velocity limit of the pool-and-weir fishway should be lower than the fastest flow speed fish can swim against over a specific distance. The endurance model can estimate the maximum swimming distance at various flow velocity barriers. Observed results can guide design and operation criteria of pool-and-weir fishways for native naked carp. [ABSTRACT FROM AUTHOR]
Copyright of Hydrobiologia is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Swimming performance of a threatened native fish (Gymnocypris przewalskii) informs fishway design in Qinghai Lake.
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  Data: <searchLink fieldCode="AR" term="%22Ke%2C+Senfan%22">Ke, Senfan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Sen%22">Yang, Sen</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tu%2C+Zhiying%22">Tu, Zhiying</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zytu1111@163.com</i><br /><searchLink fieldCode="AR" term="%22Soomro%2C+Shan-e-hyder%22">Soomro, Shan-e-hyder</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ji%2C+Huaiyao%22">Ji, Huaiyao</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Dongqing%22">Li, Dongqing</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Jiawei%22">Xu, Jiawei</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qi%2C+Hongfang%22">Qi, Hongfang</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Xiaotao%22">Shi, Xiaotao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> fishlab@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Hydrobiologia%22">Hydrobiologia</searchLink>. Sep2025, Vol. 852 Issue 16, p3997-4012. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Endangered+species%22">Endangered species</searchLink><br /><searchLink fieldCode="DE" term="%22Fishways%22">Fishways</searchLink><br /><searchLink fieldCode="DE" term="%22Lakes%22">Lakes</searchLink><br /><searchLink fieldCode="DE" term="%22Rare+fishes%22">Rare fishes</searchLink><br /><searchLink fieldCode="DE" term="%22Swimming+training%22">Swimming training</searchLink><br /><searchLink fieldCode="DE" term="%22Salinity%22">Salinity</searchLink><br /><searchLink fieldCode="DE" term="%22Anadromous+fishes%22">Anadromous fishes</searchLink><br /><searchLink fieldCode="DE" term="%22Sexual+dimorphism%22">Sexual dimorphism</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22China%22">China</searchLink><br /><searchLink fieldCode="DE" term="%22Qinghai+Lake+%28China%29%22">Qinghai Lake (China)</searchLink>
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  Label: Abstract
  Group: Ab
  Data: The endangered anadromous naked carp Gymnocypris przewalskii is a rare fish species found in Qinghai Lake, China. Studying the swimming abilities of naked carp is crucial for enhancing the design of passageways for these unique fish. Two regression models were employed to assess the influence of salinity, water temperature, body size, and gender on induced flow velocity (Uind), critical swimming speed (Ucrit), burst swimming speed (Uburst), and endurance in naked carp. The findings pointed toward the fact that larger fish under-performed smaller fish for (Uind), (Ucrit), (Uburst), and endurance. Male fish generally attained higher (Uind), (Ucrit), (Uburst), and endurance than female fish. Naked carp in saltwater demonstrated a higher level of (Uind), (Ucrit), and (Uburst) than freshwater. The velocity limit of the pool-and-weir fishway should be lower than the fastest flow speed fish can swim against over a specific distance. The endurance model can estimate the maximum swimming distance at various flow velocity barriers. Observed results can guide design and operation criteria of pool-and-weir fishways for native naked carp. [ABSTRACT FROM AUTHOR]
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  Label:
  Group: Ab
  Data: <i>Copyright of Hydrobiologia is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10750-025-05845-x
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 16
        StartPage: 3997
    Subjects:
      – SubjectFull: Endangered species
        Type: general
      – SubjectFull: Fishways
        Type: general
      – SubjectFull: Lakes
        Type: general
      – SubjectFull: Rare fishes
        Type: general
      – SubjectFull: Swimming training
        Type: general
      – SubjectFull: Salinity
        Type: general
      – SubjectFull: Anadromous fishes
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      – SubjectFull: Sexual dimorphism
        Type: general
      – SubjectFull: China
        Type: general
      – SubjectFull: Qinghai Lake (China)
        Type: general
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      – TitleFull: Swimming performance of a threatened native fish (Gymnocypris przewalskii) informs fishway design in Qinghai Lake.
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              Text: Sep2025
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