Case study: Targeting species and applying swimming performance data to fish lift design for the Huangdeng Dam on the upper Mekong River

Cai, Ling; Katopodis, C; Johnson, David M.; Zhang, Peng; Zhao, Ping

doi:10.1016/j.ecoleng.2018.07.023

Cited by 38 publications

(23 citation statements)

References 38 publications

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“…Fish sense water motion by means of the lateral line organ and adjust swimming as needed to counter the current (Arnold 1974, Montgomery & Macdonald 1987. The U ind (m s −1 ) increases with body length (Cai et al 2018). In Fig.…”

Section: Induced Flow Velocity U Indmentioning

confidence: 98%

“…Based on a study on fish swimming and coasting distance by Müller et al (2000), Peake & Farrell (2006) suggested that the swim chamber length should be > 2.1 body lengths (bl) to avoid the effects of respirometer confinement. Cai et al (2018) suggested the minimum swim chamber length should be > 5 bl, based on measurements of swimming speeds of fish with different body lengths. In the present study, the swim chamber length was 70 cm (4.9−7.7 bl).…”

Section: Equipmentmentioning

confidence: 99%

“…Fish were tested in a modified Brett-type swimming respirometer with a volume of 95 l and a 28 l rectangular swim chamber (70 cm × 20 cm × 20 cm). A flow rectifier (honeycomb shape) maintained nearly uniform flow in the chamber, and a grid at the end of the chamber prevented fish from being swept away (Cai et al 2018). Test fish had a maximum crosssectional area <10% of the chamber cross-section, and it was assumed that fish swimming speed equaled flow velocity (Bell & Terhune 1970).…”

Section: Equipmentmentioning

confidence: 99%

“…Fish body length and mass were measured, and each fish was allowed to acclimate to experimental conditions at 0.05 m s −1 for 2 h. At that velocity, the fish remained nearly motionless along the flow direction. The flow velocity was then increased by 0.01 m s −1 at 5 s intervals and, when the fish began actively swimming, the flow velocity was reported as U ind (Cai et al 2018). Flow velocity was then adjusted to 1.0 bl s −1 and increased by 1.0 bl s −1 at 1 min intervals (Tierney 2011, Wang et al 2017.…”

Section: Exptmentioning

confidence: 99%

“…The lowest flow velocity that induces continuous fish motion is termed the induced flow velocity (U ind ). This parameter is useful for fish passage de sign because fish maintain their orientation more easily when flow velocity is higher than U ind (Cai et al 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effect of tail fin loss on swimming capability and tail beat frequency of juvenile black carp Mylopharyngodon piceus

et al. 2020

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Fin clipping is a common practice in fisheries management, and hatchery fish are often marked this way. In the wild, the tail (caudal) fin may be damaged or lost to predation or disease. Because the tail fin is important to fish swimming behavior and ability, this study was designed to examine the effects of partial and complete loss of the tail fin on the swimming ability of juvenile black carp Mylopharyngodon piceus. Swimming speed and tail beat frequency were measured for 3 groups (intact tail fin, partial tail fin, no tail fin) using a stepped velocity test conducted in a fish respirometer. We found that critical swimming speed (Ucrit) and burst speed (Uburst) decreased slightly in the partial fin group and significantly in the no fin group. In the group with no tail fin, Uburst decreased more than Ucrit, clearly reducing the ability to avoid predators. Moreover, mean tail beat frequency (TBFmean), Ucrit and Uburst all decreased slightly in the partial fin group and significantly in the no fin group. A decrease in tail beat force and TBF both reduce swimming capability. These findings contribute to developing our understanding of the relationship between fish tail fins and swimming.

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Section: Induced Flow Velocity U Indmentioning

confidence: 98%

Section: Equipmentmentioning

confidence: 99%

Section: Equipmentmentioning

confidence: 99%

Section: Exptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of tail fin loss on swimming capability and tail beat frequency of juvenile black carp Mylopharyngodon piceus

et al. 2020

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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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Effects of prolonged and burst swimming on subsequent burst swimming performance of Gymnocypris potanini firmispinatus (Actinopterygii, Cyprinidae)

et al. 2019

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Case study: Targeting species and applying swimming performance data to fish lift design for the Huangdeng Dam on the upper Mekong River

Cited by 38 publications

References 38 publications

Effect of tail fin loss on swimming capability and tail beat frequency of juvenile black carp Mylopharyngodon piceus

Effect of tail fin loss on swimming capability and tail beat frequency of juvenile black carp Mylopharyngodon piceus

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

Effects of prolonged and burst swimming on subsequent burst swimming performance of Gymnocypris potanini firmispinatus (Actinopterygii, Cyprinidae)

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