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Effect of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss

K.L. Pope·G.R. Wilde·D.W. Knabe
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Abstract

Catch-and-release angling is popular in many parts of the world and plays an increasingly important role in fish conservation efforts. Although survival rates associated with catch-and-release angling are well documented for many species, sublethal effects have been less studied. An experiment was conducted to directly assess the effects of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss (Walbaum). Catch-and-release events were simulated in laboratory tanks maintained at 15-16 ??C with hooks manually placed in pre-designated locations in the mouths of the fish. There were no differences in standard length (P = 0.59) or wet weight (P = 0.81) gained between caught and uncaught fish over a 1-month angling and recovery period. Survival was 96.99 ?? 0.06% for rainbow trout caught and released, and did not vary with number (one, two or four) of captures. Thus, catch-and-release angling appears to have little effect on growth and mortality of rainbow trout hooked in the mouth. ?? 2007 The Authors. Journal compilation 2007 Blackwell Publishing Ltd.

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K.L. Pope, G.R. Wilde, D.W. Knabe. 2007-03-19. Effect of catch-and-release angling on growth and survival of rainbow trout, Oncorhynchus mykiss. https://doi.org/10.1111/j.1365-2400.2007.00531.x

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