Publication Date:
2022-05-25
Description:
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.
Description:
Prepared by the Woods Hole Oceanographic Institution and
the Department of Recreation, Fish and Game of the Province
of Quebec.
Keywords:
Atlantic salmon
;
Fish populations
;
Atlantic salmon
;
Fisheries
Repository Name:
Woods Hole Open Access Server
Type:
Technical Report
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