Evaluating riverine hydrokinetic turbine operations relative to the spatial ecology of wild fishes
| Autor: | Karen E. Smokorowski, Steven J. Cooke, Eric Bibeau, Doug Watkinson, Eva C. Enders, Lee F.G. Gutowsky, Daniel P. Struthers |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Journal of Ecohydraulics. 2:53-67 |
| ISSN: | 2470-5365 2470-5357 |
| DOI: | 10.1080/24705357.2017.1287530 |
| Popis: | Hydrokinetic turbines (HTs) are being proposed for placement in riverine landscapes around the globe. Here, we implanted 40 adult lake sturgeon and 40 adult walleye with acoustic telemetry transmitters to monitor their lateral and vertical space use at the Canadian Hydrokinetic Turbine Testing Centre (CHTTC) located in the Seven Sisters Generating station (GS) tailrace on the Winnipeg River, Manitoba. Specifically, we tested whether fish behaviour was influenced by the operation of HTs relative to control periods, and estimate the threat of HTs towards lake sturgeon and walleye across seasons. The behaviour and habitat use of both species was not influenced by HT operations. Greater numbers of walleye were present when the discharge rate was ≥ 950 m3s–1, which is ≥ 77 m3s–1 greater than the average discharge rate (873 m3s–1) measured during the study period. Given the patterns of seasonal residency, movement, and depth use, lake sturgeon appeared more prone to interacting with HTs during spring an... |
| Databáze: | OpenAIRE |
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