can ecologists facilitate sustainable fisheries management?
Harvey, Chris*,1, Cox, Sean2, Kitchell, James2, 1 Northwest Fisheries Science Center, Seattle, WA2 Center for Limnology, Madison, WI ABSTRACT- Fisheries management traditionally follows single-species models, but increasing evidence indicates that multispecies interactions also influence dynamics of exploited stocks. Given this dichotomy, ecosystem-level management may be essential for sustainable fisheries. We have studied this issue in Lake Superior, where fish populations are recovering from overfishing and exotic species introductions. Fish community objectives (FCOs) emphasize rehabilitating native species and associated fisheries; maintaining desirable exotics; and controlling nuisance exotics. Our approach was to address ecological, relevant hypotheses embedded within the FCOs. We first examined food web structure through stable isotope analysis and bioenergetics modeling. These analyses revealed little trophic overlap among major piscivores, but raised questions regarding the a
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