What is actually the main cause for the survival crisis of Chinese sturgeon?

Wang, Luhai; Zhen-li, Huang

doi:10.18307/2020.0403

Cited by 7 publications

(1 citation statement)

References 4 publications

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“…This measure has been adopted as an essential conservation strategy for more than 20 vulnerable fish species in China (J. Yang et al., 2013). For instance, Chinese sturgeon are preferentially distributed in the lower reaches of the Yangtze River; however, their spawning migration route is blocked and spawning grounds are damaged by hydropower dams on the upper Yangtze River, which reduces the length of natural spawning ground from 600 to 7 km and causes their gonads to degenerate (L. Wang & Huang, 2020; Xie, 2003; Y. Zheng et al., 2022). Since 1984, artificial breeding and release of larvae and juveniles (Figure 15) into the natural environment has become an important approach to conservation efforts of the Chinese sturgeon (Chang et al., 2021; Gao et al., 2009; Qin et al., 2020; Stone, 2008; Wei et al., 2004).…”

Section: Fish Conservation Measures In Dammed Riversmentioning

confidence: 99%

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Chen,

Li,

Lin

et al. 2023

Reviews of Geophysics

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River damming has brought great benefits to flood mitigation, energy and food production, and will continue to play a significant role in global energy supply, particularly in Asia, Africa, and South America. However, dams have extensively altered global river dynamics, including riverine connectivity, hydrological, thermal, sediment and solute regimes, and the channel morphology. These alterations have detrimental effects on the quality and quantity of fish habitat and associated impacts on aquatic life. Indeed, dams have been implicated in the decline of numerous fishes, emphasizing the need for effective conservation measures. Here, we present a global synthesis of critical issues concerning the impacts of river damming on physical fish habitats, with a particular focus on key fish species across continents. We also consider current fish conservation measures and their applicability in different contexts. Finally, we identify future research needs. The information presented herein will help support sustainable dam operation under the constraints of future climate change and human needs.

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