Literaturdatenbank
Literaturdatenbank |
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Larocque, S. M., Colotelo, A. H., Cooke, S. J., Blouin-Demers, G., Haxton, T., & Smokorowski, K. E. (2011). Seasonal patterns in bycatch composition and mortality associated with a freshwater hoop net fishery. Animal Conservation, (early view).
Added by: Sarina Wunderlich (27 Nov 2011 14:28:11 UTC) |
| Resource type: Journal Article BibTeX citation key: Larocque2011 View all bibliographic details  |
Categories: General Keywords: Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Blouin-Demers, Colotelo, Cooke, Haxton, Larocque, Smokorowski Collection: Animal Conservation |
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| Abstract |
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Although bycatch is well known and well studied in marine fisheries, comparatively little is known about bycatch in freshwater fisheries. Even basic information on bycatch composition and mortality in freshwater is unavailable, given that few inland jurisdictions require reporting of bycatch. A small-scale inland hoop net fishery that targets pan fish (e.g. sunfish, Lepomis spp.) and operates primarily in the spring and fall was simulated in two lakes in south-eastern Ontario to characterize both bycatch composition and mortality. We fished one lake in both spring and fall to compare catch rates, while in the other lake we set nets for 2 or 6 days during the spring to assess fish mortality associated with different net tending frequencies. In both lakes, bycatch consisted of gamefish, turtles (including several species at risk), and mammals. For fish, there was no difference in spring and fall catches. Turtles, however, were captured more often in spring.
Added by: Sarina Wunderlich |