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Swimming ability of Schizothoracinae fishes in Yarlung Zangbo River of China.
Wang, Hongtao; Jiang, Xutao; Liu, Kejia; Pu, Xunchi; Wang, Yuanming.
Afiliación
  • Wang H; State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, China.
  • Jiang X; China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, China.
  • Liu K; School of Management Science and Engineering, Shandong University of Finance and Economics, Jinan, China.
  • Pu X; State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, China.
  • Wang Y; State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, China.
J Fish Biol ; 105(1): 95-109, 2024 Jul.
Article en En | MEDLINE | ID: mdl-38650364
ABSTRACT
The Yarlung Zangbo River is a river with abundant hydropower resources but fragile biodiversity in China. As an important benchmark for both research and ecological management, there is still a lack of knowledge about the swimming ability of fishes in the Yarlung Zangbo River. The induced flow velocity (Uind), critical swimming speed (Ucrit), and burst swimming speed (Uburst) of five Schizothoracinae species were tested in this study. Relative swimming ability related to body length and body shape was calculated. The results indicated that the average absolute swimming speeds (Uind-a, Ucrit-a, and Uburst-a) of all the experimental fish were 10.20 ± 0.01, 57.58 ± 3.28, and 69.54 ± 2.94 cm/s, respectively, and the corresponding relative Uind, Ucrit, and Uburst related to body length (Uind-l, Ucrit-l, Uburst-l) were 1.15 ± 0.07, 5.04 ± 0.26, and 7.23 ± 0.28 BL/s, respectively. Moreover, relative Uind, Ucrit, and Uburst related to body shape (Uind-s, Ucrit-s, and Uburst-s) were 0.80 ± 0.13, 2.49 ± 0.51, and 4.32 ± 0.57 cm-2/s, respectively. No significantly differences in relative swimming speeds existed among five species. Only Oxygymnocypris stewartii was significantly weaker in Uburst-s than Schizothorax o'connori. The body shape showed a stronger relationship with swimming speed than the body length did. Schizothoracinae fish in the Yarlung Zangbo River basin are less sensitive to the water flow and performed weaker Ucrit and Uburst compared to those in the Yangtze River basin, indicating that Schizothoracinae fish in the Yarlung Zangbo River may be more susceptible to threats from environmental changes. The paper enriched the research on the swimming ability of Schizothoracinae fishes and provided efficient data for the fish conservation in the Yarlung Zangbo River.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Natación / Ríos Límite: Animals País/Región como asunto: Asia Idioma: En Revista: J Fish Biol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Natación / Ríos Límite: Animals País/Región como asunto: Asia Idioma: En Revista: J Fish Biol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido