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- Eberts, Rebecca L.; Somers, Christopher M.
- North American Journal of Fisheries Management 2017 v.37 no.3 pp. 612-623
- biotelemetry; experimental design; fish; freshwater; game fish; habitats; managers; models; mortality; relative risk; swim bladder
- ... Descending fish to depths of neutral buoyancy is a promising, less-invasive alternative to swim bladder venting for relieving barotrauma and reducing mortality in sport fish. However, we lack a broad perspective on the relative benefits of these two approaches. We reviewed the most up-to-date literature to evaluate the effectiveness of venting compared to descending treatments. Mean relative risk ...
- Arntzen, Evan V.; Mueller, Robert P.
- North American Journal of Fisheries Management 2017 v.37 no.3 pp. 676-681
- Petromyzontiformes; habitats; larvae; rearing; rivers; silt; summer; watersheds; winter; Columbia River; Washington (state)
- ... A deepwater electroshocking platform (DEP), developed to sample larval lampreys (ammocoetes) and associated habitat in depths up to 15 m, was recently tested in the field. Searches were conducted at a known rearing location (mouth of the Wind River, Washington) and at locations on the Cowlitz River, Washington, where ammocoetes had not previously been found. At the Wind River, video-imaged ammocoe ...