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    Effects of commercial fishing on adult Atlantic salmon (Salmo salar) in a Quebec river

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    WHOI-82-2.pdf (8.333Mb)
    Date
    1982-01
    Author
    Whoriskey, Frederick G.  Concept link
    Naiman, Robert J.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/8955
    Location
    Quebec
    DOI
    10.1575/1912/8955
    Keyword
     Atlantic salmon; Fish populations; Atlantic salmon; Fisheries 
    Abstract
    Despite an absence of freshwater exploitation, the adult salmon run in the Matamek River, Quebec, declined during 1975-1980 to <23% of the level thought to occur there prior to 1967. Returns in 1979 and 1980 of adults tagged as smolts were 1.0% and 0.9%, respectively. Numbers of emigrating smolts and their corresponding adult returns are not significantly correlated, although we observed a trend towards more salmon (2 sea year fish) returning with larger numbers of migrating smolts. Since 1967 there is noted a decrease in the age at which returning adults smolted and females appear to now constitute a larger percentage of returning grilse and salmon. These, and other changes in life history characteristics, appear to be caused solely by commercial exploitation.
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    Suggested Citation
    Whoriskey, F. G., & Naiman, R. J. (1982). Effects of commercial fishing on adult Atlantic salmon (Salmo salar) in a Quebec river. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/8955
     

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