http://worldcat.org/entity/work/id/12641621

Pelagic seabird populations in Hecate Strait and Queen Charlotte Sound : comparison with the west coast of the Queen Charlotte Islands

Marine bird surveys were conducted from oceanographic vessels in Hecate Strait and Queen Charlotte Sound and off the west coast of the Queen Charlotte Islands during 7 months: May 1982; May, June, July and September 1983; and January and April 1984. Pelagic bird densities in the Strait and Sound ranged from 2 birds/sq km in January, to 7 in April, 58 in May 1982, 170 in May 1983, 6 in June, 3 in July and 2 in September. Significant correlations between seabird density and waterdepth were found. The standing stock of pelagic birds in the Strait and Sound in May was estimated in the millions of birds, of which most werealcids and shearwaters. Recommendations are made to conduct systematic and random surveys simultaneuously; to investigate the preferred feeding localities and diet of key bird species, and the life cycle of major prey species.

Open All Close All