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7252670 
Journal Article 
Fecundity and seasonal reproduction of northern abalone, Haliotis kamtschatkana, in Barkley Sound, Canada 
Campbell, A; Lessard, J; Jamieson, GS; , 
2003 
NATL SHELLFISHERIES ASSOC 
SOUTHAMPTON 
811-818 
WOS:000188365100033 
Fecundity, size at maturity and seasonal reproduction of northern or "pinto" abalone, Haliotis kamtschatkana, from exposed "surf" areas and more sheltered, productive abalone habitat were investigated in Barkley Sound. Examination of histologic sections of gonads indicated that size at maturity occurred at a smaller size for the stunted 'surf' abalone than for abalone from more sheltered areas. Gonad index and stages showed that gonads were mainly ripe and that most abalone spawned during April to July. Although there were smaller abalone with ripe eggs from the "surf" area than those from the sheltered area, abalone females of comparable size from both areas had similar egg numbers. However, there were larger females with considerably higher fecundity from the sheltered areas than from the "surf" areas. Implications of transplanting "surf" abalone to productive habitats to increase growth and fecundity rates are discussed in the context of population rebuilding attempts for H. kamtschatkana, which is listed by the Committee on the Status of Endangered Wildlife in Canada as a "threatened" species in Canada. 
Workshop on Rebuilding Techniques for Abalone in British Columbia 
NANAIMO, CANADA