Application of Habitat Suitability Model Coupling with High - precision Hydrodynamic Processes

Yang, Lu; Hou, Jingming; Cheng, Long; Wang, Pan; Pan, Zhanpeng; Ma, Yuchi; Gao, Xujun; Jixin, Sun; Liu, Na

doi:10.1016/j.ecolmodel.2021.109792

Cited by 14 publications

(3 citation statements)

References 28 publications

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“…The integrated use of the habitat suitability model and HSI and WUA parameters can be used to quantitatively evaluate the habitat quality of indicator species in the region (Yi et al, 2019;Yang et al, 2021;Collier et al, 2022). HSI indicates the degree of preference of the indicator species to the habitat.…”

Section: Habitat Suitability Modelmentioning

confidence: 99%

Effect of dam construction on spawning activity of Yellow River carp (Cyprinus carpio) in the lower Yellow River

et al. 2022

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The construction of water conservancy projects not only brings benefits such as flood control and disaster reduction but also has many effects on the habitat and reproduction of local aquatic organisms. Taking the reach from Xuzhuang Station to Gaocun Station in the lower Yellow River as an example, this paper discusses the effect of the Xiaolangdi Reservoir on the habitat of Yellow River carp (Cyprinus carpio). By constructing a two-dimensional hydrodynamic model, coupled with a habitat suitability model of the spawning ground of Yellow River carp, the weighted usable area (WUA) of the Yellow River carp habitat was calculated, and the spatial distribution of the habitat suitability index (HSI) in the reach was analyzed to evaluate habitat quality before and after the construction of the Xiaolangdi Reservoir. The results showed that the Xiaolangdi Reservoir had a negative effect on the habitat of Yellow River carp, resulting in the reduction of the spatial distribution of HSI, a decrease in WUA by 45.53%, and a decrease in habitat quality. The construction of the Xiaolangdi Reservoir reduced or even eliminated flow pulses in the downstream reach, but had little effect on the suitability index of water depth and velocity. However, the suitability index of water level rise was significantly reduced, which is not conducive to the spawning activities of aquatic organisms and has a negative effect on habitat. The results of this study will provide a reference for ecological restoration in this region.

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Section: Habitat Suitability Modelmentioning

confidence: 99%

Effect of dam construction on spawning activity of Yellow River carp (Cyprinus carpio) in the lower Yellow River

et al. 2022

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“…The instream flow incremental methodology was adopted to study biological habitats, which uses the weighted usable area (WUA) to assess habitat quality (Yang et al 2021). The WUA represents the suitable physical habitat area of the target species, which is as follows:…”

Section: Habitat Modelmentioning

confidence: 99%

Evaluation of habitat quality and ecological flow in a regulated waterway

et al. 2022

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Dam control has changed rivers' hydraulic environment and hydrological rhythm; to explore the causes of fish habitat loss and influence of river regulation in such rivers, the downstream curving reaches of Shaying River were cut off. Grass, silver, and bighead carp were selected as the research targets, the impact of waterway regulation and gravel groups effect in target fish habitat were studied using numerical simulation. The results show that the original channel's hydraulic environment is similar to the artificial channel, and the target fish spawning habitat is limited, which is an important reason for the shortage of fish resources in research area. The reconstructed channel can meet the river's navigation demands and improve the channel's flood discharge capacity. The habitat method was used to estimate the minimum and appropriate ecological flows of the target fish at each growth stages in the original and reconstruction rivers. Under the appropriate ecological flow, the weighted usable area (WAU) of juvenile, migratory, and spawning habitats of target fish in the reconstructed river increased by 168, 24, and 580%, respectively, compared to the original channel, while the WAU of adult fish that preferred slow-water environment decreased by 62%, effectively improving the target fish's spawning environment.

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“…Since the 1980s, several fish habitat models have been developed to study the river environment (e.g., Beaupré et al, 2020; Milhous et al, 1989; Yi et al, 2010). These models have been widely used for water resource management and river restoration (Yang et al, 2021; Yi et al, 2017; Zhao et al, 2015). For instance, Zhou et al (2014) simulated and assessed the habitats of the Chinese sturgeon ( Acipenser sinensis ) at the Three Gorges reservoirs, China.…”

Section: Introductionmentioning

confidence: 99%

Application of a fish habitat model to assess habitat fragmentation using high flow and sediment transport in the Rumei Dam in Lancang River (China)

Yang,

Bao,

Cong

et al. 2023

Ecohydrology

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Dam construction and operation can result in serious disturbances to the downstream flow regime and fluvial process, river morphology and the river's ecological condition worldwide. To understand the effects of discharge and sedimentation on fish habitats and ecosystems, an ecohydraulic approach was applied to one of the mega hydropower schemes in the downstream Lancang River (Tibet). The approach comprised a dam operation module with high flow and sediment transport and the application of a dynamic fish habitat model for assessing habitat fragmentation of two targeted fish species: Schizothorax prenanti (S. prenanti) and Schizothorax davidi (S. davidi). The hydrodynamics of the river system and the assessed fish habitat show a significant impact of dam construction and operation on the downstream riverine ecosystem, in which fish habitats were found rapidly deteriorated with the destruction of feeding and reproductive grounds. To improve fish habitat after dam construction, the sediment supplement was applied to the river and shown to be a useful restoration strategy, which recovers the habitat fragmentation of target fish. Our model not only is useful to predict dam operation impacts on the Lancang River's ecological status but also shows great potential in mitigating hydropower‐induced environmental impacts and developing river conservation guidelines worldwide.

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Application of Habitat Suitability Model Coupling with High - precision Hydrodynamic Processes

Cited by 14 publications

References 28 publications

Effect of dam construction on spawning activity of Yellow River carp (Cyprinus carpio) in the lower Yellow River

Effect of dam construction on spawning activity of Yellow River carp (Cyprinus carpio) in the lower Yellow River

Evaluation of habitat quality and ecological flow in a regulated waterway

Application of a fish habitat model to assess habitat fragmentation using high flow and sediment transport in the Rumei Dam in Lancang River (China)

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