Longitudinal patterns of fish assemblages in relation to environmental factors in the Anning River, China

Ma, Baoshan; Chu, Zhipeng; Zhou, Ruihang; Xu, Bin; Wei, Kaijin; Li, Bing; Zhao, Tianyi

doi:10.1016/j.ecolind.2023.109864

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…(b) What predators do the fishes have and how do they avoid getting caught by them (Railsback, 2016)? In fact, rivers are dynamic and complex ecosystems with multiple species interacting with each other, through predation, parasitism, symbiosis, competition, and cooperation (Ayllon et al., 2010; B. S. Ma et al., 2019). Therefore, the traditional habitat simulation methodologies that consider only the EFs requirement for single target species or guild are inadequate to capture interactions between biological communities.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Environmental Flows Assessment for Multi‐Guilds in the Riparian Habitats of the Yangtze River

Ban

Wang

et al. 2022

Water Resources Research

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Flow regime changes caused by existing hydraulic infrastructure (e.g., dams, and diversion weirs are evident in all continents of the earth, resulting in irreversible negative impacts on aquatic ecosystems (Nilsson et al., 2005). Over 58,000 large dams and 880,000 small dams are estimated to exist worldwide (J. Wang et al., 2021). The Yangtze River of China is the third longest and most water-rich river system in the world. It is also one of the rivers with the most abundant biodiversity in the world (Huang et al., 2016). However, over 50,000 dams have been built in the Yangtze basin (B. Y. Li et al., 2021). In particular, the huge Three Gorges Dam (TGD), built on the middle reaches of the Yangtze River, has tremendous effects on riverine ecosystems in multiple ways, such as the drowning of the channel and riparian habitats within the impounded zone, the alteration of the hydrology and the thermal regime in downstream regions (B. Y. Li et al., 2021). Recently, the biological integrity of the Yangtze River has been degraded dramatically, prompting the Chinese government to issue the Yangtze River protection law for implementing remedial measures to restore the biodiversity of the Yangtze River. These conservation measures include sewage interception, forbidding sand dredging, and banning fishing (Han et al., 2021). Even so, improvement of the ecosystem remains at a limited scale as compared to the tremendous impact caused by the TGD. The optimal ecologically-friendly operation strategy of the TGD reservoir is critically needed for the restoration of the aquatic ecosystem in the Yangtze River (K. B. Chen et al., 2018).Recent research efforts have provided insight into how dams might be strategically operated to partially restore lost ecosystem functions and services (Owusu et al., 2020). The concept of environmental flows (EFs) has been

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Section: Introductionmentioning

confidence: 99%

Comprehensive Environmental Flows Assessment for Multi‐Guilds in the Riparian Habitats of the Yangtze River

Ban

Wang

et al. 2022

Water Resources Research

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Relative influence of local habitat and land use/cover on the taxonomic and functional organizations of fish assemblages in the Anning River, Southwest China

Ma,

Zhou,

Zhang

et al. 2024

Ecological Indicators

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Ecological drivers shaping mainstem and tributary fish communities in the upper Jinsha River, southeastern Qinghai-Tibet Plateau

Lin,

Fujiwara,

et al. 2025

Ecol Process

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Background Elucidating spatial variation in ecological communities and the mechanisms of community assembly is crucial for biodiversity conservation in river ecosystems. The upper Jinsha River located in the eastern part of the Qinghai-Tibet Plateau, is experiencing intensified human activities, such as hydropower development. In this study, fish surveys were conducted at 38 sites, including 15 mainstem sites and 23 tributary sites of the upper Jinsha River, China, to analyze the spatial patterns and ecological drivers of fish communities. Results NMDS and PERMANOVA analysis revealed significant disparities in the fish communities between the mainstem and tributaries. Schizothorax dolichonema and Schizopygopsis malacanthus dominated the mainstem, whereas Schizopygopsis malacanthus, Schizothorax wangchiachii, and Triplophysa stenura dominated the tributaries. Fish beta diversity exhibited substantial turnover across the mainstem, tributaries, and entire river basin. Both environmental factors (e.g., altitude and the proportion of cobble substrate) and spatial variables were significantly correlated with fish beta diversity, but their relative importance differed between the mainstem and tributaries. Specifically, in the mainstem, environmental variables emerged as the primary drivers. In contrast, spatial factors assumed a predominant role in the tributary communities. Conclusions The results suggested that environmental filtering predominantly drove fish community assembly in the mainstem, whereas dispersal limitation exerted had a greater influence on the fish communities in the tributaries. These results contribute to our understanding of the spatial patterns and formation mechanisms of fish assemblages between mainstem and tributaries in high-altitude rivers, such as the upper Jinsha River. In the context of hydropower development in the upper Jinsha River, our findings offer insights into the management and conservation of fish diversity.

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Longitudinal patterns of fish assemblages in relation to environmental factors in the Anning River, China

Cited by 3 publications

References 35 publications

Comprehensive Environmental Flows Assessment for Multi‐Guilds in the Riparian Habitats of the Yangtze River

Comprehensive Environmental Flows Assessment for Multi‐Guilds in the Riparian Habitats of the Yangtze River

Relative influence of local habitat and land use/cover on the taxonomic and functional organizations of fish assemblages in the Anning River, Southwest China

Ecological drivers shaping mainstem and tributary fish communities in the upper Jinsha River, southeastern Qinghai-Tibet Plateau

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