Abalone Survey in the Estevan Group and Aristazabal Island, June 1985Microform - 1986
Reductions in the commercial abalone fishery quota in recent years have been supported by surveys indicating substantial declines in the index of abalone abundance. In 1985, the Central Coast commercial fishing areas were resurveyed in response to reports of increasing availability of abalone. The survey was carried out by 3 divers, with 28 sites surveyed. Most selected sites were those that had shown a high abalone density during the 1983 survey, with 3 new sites added. Topography, substrate type, exposure and dominant algae were identified, and percent cover of algae was estimated, with the density of abalone estimated by collecting all abalones in a metre quadrant in a 16-quadrant pattern and measuring shell length to the nearest mm. Of the 28 sites surveyed, 25 were considered suitable for data comparison with previous surveys.
Publisher: Prince Rupert, B.C. : Dept. of Fisheries and Oceans, Field Services Branch, 1986
Description: 45 p. : ill
Branch Call Number: MF BC-DOC 88-02587