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Dispersal of Tournament Caught Black Bass

Dispersal of Tournament Caught Black Bass. Gene R. Wilde 2003 Fisheries Presented by: Brian Kiely. Location of Study. Review of previous research 12 studies of dispersal of tournament caught fish Conducted from 1975-1998 Throughout CONUS. Major Questions.

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Dispersal of Tournament Caught Black Bass

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  1. Dispersal of Tournament Caught Black Bass • Gene R. Wilde • 2003 • Fisheries • Presented by: Brian Kiely

  2. Location of Study • Review of previous research • 12 studies of dispersal of tournament caught fish • Conducted from 1975-1998 • Throughout CONUS

  3. Major Questions • What proportion of fish return to capture sights? • What is the rate and distance dispersed? • Does dispersal differ among LM and SM bass?

  4. Major Questions • Does dispersal differ between lake and river-caught fish? • What proportion of dispersing fish are recaptured?

  5. Major Findings • Black bass rarely return to the site of capture • Possible effects of tournament handling? • Distance dispersed is greater in SM than LM bass

  6. Major Findings • No evidence for different dispersal rates in lakes vs. rivers • Recapture rates were high for both species • No significant interspecies difference

  7. Major Findings • Some individuals feed immediately after release • Anglers often exploit concentrations of tournament caught black bass

  8. Recommendations • A predictive model of the dispersal process is needed • Studies to predict fishery benefits from better holding and handling of tournament caught fish • Studies of dispersal should be on the same scale as those over which fish are dispersed

  9. Recommendations • Studies should population effects of recapture of tournament caught fish • Tournament organizers and participants should heed the recommendations of researchers!

  10. Questions?

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