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Nass salmon fishery

28 Jul 2006

The fish wheels are highly effective and catch anywhere between 5-20% of the salmon run of which a portion of the sockeye, chinook and coho are tagged for population estimation and in-season management adjustments. [...] The mark-recapture program uses two fish wheels in the lower Nass canyon to apply the tags and two wheels in the upper canyon for recovery. [...] The most productive coho areas in the Nass include the largest tributaries, namely Iknouk and 13 Ishkeemickh Rivers in the Lower Nass, and Bell-Irving, Bowser, Cranberry, Kiteem, Kwinageese, Meziadin and White rivers in the Upper Nass. [...] This includes the need for more rigorous evaluation of the status of smaller sockeye stocks and the need to reverse the declines in chum salmon populations. [...] Much of the fishing effort that harvests Nass sockeye is directed at the concurrent migration of the more abundant Skeena River sockeye, making it challenging to fine-tune the harvest of Nass sockeye in the mixed stock fishery.
oceans environment sustainability conservation biodiversity water sustainable fisheries natural resources biology fish bycatch fishery management genetics precautionary approach rivers salmon fisheries ecosystem nature fisheries management salmon fish and humans conservation biology coho salmon ecosystem approach pacific salmon oncorhynchus nerka chinook salmon sockeye gillnetters ecosystem approaches ecosystem-based approaches

Authors

Levy, David

Pages
39
Published in
Canada

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