MSU FW 479 - Dispersal of Tournament Caught Black Bass (10 pages)

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Dispersal of Tournament Caught Black Bass



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Dispersal of Tournament Caught Black Bass

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Pages:
10
School:
Michigan State University
Course:
Fw 479 - Fisheries Management
Fisheries Management Documents

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Dispersal of Tournament Caught Black Bass Gene R Wilde 2003 Fisheries Presented by Brian Kiely 1 Location of Study Review of previous research 12 studies of dispersal of tournament caught fish Conducted from 1975 1998 Throughout CONUS 2 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 3 Major Questions Does dispersal differ between lake and rivercaught fish What proportion of dispersing fish are recaptured 4 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 5 Major Findings No evidence for different dispersal rates in lakes vs rivers Recapture rates were high for both species No significant interspecies difference 6 Major Findings Some individuals feed immediately after release Anglers often exploit concentrations of tournament caught black bass 7 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 8 Recommendations Studies should population effects of recapture of tournament caught fish Tournament organizers and participants should heed the recommendations of researchers 9 10



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