Stock delineation and growth of rock sole (Lepidopsetta bilineata) as indicated by tagging in British Columbia waters, 1944-66 / K.S. Ketchen.: Fs97-4/1683E-PDF

"An inventory is provided of taggings conducted during 1944-66 together with results from Hecate Strait and Queen Charlotte Sound where most of the work was conducted during 1947-66. Neglecting first-year returns, 95% and 86%, respectively, of the recaptures were made within 15 miles of the tagging sites in the two areas. No intermingling was indicated between northern and southern Hecate Strait. In Queen Charlotte Sound minor and unconfirmable numbers of migrants were noted from Goose Island Grounds to the adjacent Scott Island Grounds, but not the reverse. No recaptures from tagging in the Sound were reported from Hecate Strait or the west coast of Vancouver Island. It was concluded that rock sole occur in a number of localized stocks along the British Columbia coast. Growth of rock sole as indicated by tagging and by age determination from otoliths was compared and revealed some disparities which may reflect errors in age determination of old fish comprising a relatively small fraction of the exploited stocks"--Abstract, page iii.

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