Validation of reflex indicators for measuring vitality and predicting the delayed mortality of wild coho salmon bycatch released from fishing gears
نویسندگان
چکیده
Graham D. Raby*, Michael R. Donaldson, Scott G. Hinch, David A. Patterson, Andrew G. Lotto, David Robichaud, Karl K. English, William G. Willmore, Anthony P. Farrell, Michael W. Davis and Steven J. Cooke Fish Ecology and Conservation Physiology Laboratory, Ottawa-Carleton Institute of Biology and Institute of Environmental Science, Carleton University, 1125 Colonel By Dr., Ottawa, ON, K1S 5B6, Canada; Pacific Salmon Ecology and Conservation Laboratory, Centre for Applied Conservation Research and Department of Forest Sciences, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada; Fisheries and Oceans Canada, Science Branch, Pacific Region, Cooperative Resource Management Institute, School of Resource and Environmental Management, Simon Fraser University, 8888 University Dr., Burnaby, BC, V5A 1S6, Canada; LGL Limited, 9768 Second St., Sydney, BC, V8L 3Y8, Canada; Department of Biology, Carleton University, 1125 Colonel By Dr., Ottawa, ON, K1S 5B6, Canada; Department of Zoology, and Faculty of Land and Food Systems, University of British Columbia, Vancouver, Biological Sciences Building 3325, University Blvd., BC, V6T 1Z4, Canada; and Private scientist, PO Box 174, South Beach, OR 97366, USA
منابع مشابه
Physiological Indicators of Stress of Capture and Mortality Risk in Commercial Non-Retention Salmon Fisheries
Over 300 coho salmon (Oncoryhynchus kisutch) were examined for their physical and metabolic condition following capture with three different commercial salmon fishing gear types (seine, troll and gillnet). Regardless of the gear type, all fish arrived on board in a severe state of metabolic exhaustion and physiological stress as based on the eleven physiological measurements we performed. In ou...
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Data from pelagic trawl surveys by TINRO-center from 1987 to 1996 in the Okhotsk Sea indicate that coho abundance is underestimated by coastal observations. The approximate Asian coho spawning biomass is 7,300-16,000 tons for the 1990s. Ways of improving Asian coho salmon resource management are discussed. Collection of precise fishery and escapement statistics must be expanded in areas previou...
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To reduce mortality in the by-catch of commercial salmon fisheries, techniques are being explored to revive fish before live release and improve survival. By measuring blood and muscle variables, we demonstrated that capture of coho salmon (Oncorhynchus kisutch) by commercial trolling methods resulted in severe exhaustion and stress, e.g., muscle lactate reached 46.1 mmol·kg–1 while muscle phos...
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White sturgeon (Acipenser transmontanus) are the largest freshwater fish in North America and a species exposed to widespread fishing pressure. Despite the growing interest in recreational fishing for white sturgeon, little is known about the sublethal and lethal impacts of angling on released sturgeon. In summer (July 2014, mean water temperature 15.3°C) and winter (February 2015, mean water t...
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