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

Kevin L. Pope, G. R. Wilde, D. W. Knabe

Research output: Contribution to journalArticle

14 Scopus citations

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.

Original languageEnglish
Pages (from-to)115-121
Number of pages7
JournalFisheries Management and Ecology
Volume14
Issue number2
DOIs
StatePublished - Apr 2007

Keywords

  • Angling effects
  • Growth
  • Oncorhynchus mykiss
  • Weight

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