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Survey of northern abalone, Haliotis kamtschatkana, population in the Strait of Georgia, British Columbia, October 2009

Author: T P Egli; Canada. Department of Fisheries and Oceans.; Pacific Biological Station (1972- )
Publisher: Nanaimo, B.C. : Fisheries and Oceans, 2011.
Series: Canadian manuscript report of fisheries and aquatic sciences, no. 2955.
Edition/Format:   eBook : Document : National government publication : EnglishView all editions and formats
Summary:
Index site surveys have been conducted by the Department of Fisheries and Oceans Canada to monitor northern abalone, Haliotis kamtschatkana, populations in British Columbia since 1978. Due to low population levels and steadily decreasing densities, the coast of British Columbia has been completely closed to abalone harvesting since 1990. First listed as 'threatened' in 1999 by the Committee on the Status of  Read more...
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Details

Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: T P Egli; Canada. Department of Fisheries and Oceans.; Pacific Biological Station (1972- )
OCLC Number: 793485340
Language Note: Includes abstract in French.
Notes: Distributed by the Government of Canada Depository Services Program (Weekly checklist 2012-12).
Description: 1 online resource.
Series Title: Canadian manuscript report of fisheries and aquatic sciences, no. 2955.
Responsibility: by T.P. Egli and J. Lessard.

Abstract:

Index site surveys have been conducted by the Department of Fisheries and Oceans Canada to monitor northern abalone, Haliotis kamtschatkana, populations in British Columbia since 1978. Due to low population levels and steadily decreasing densities, the coast of British Columbia has been completely closed to abalone harvesting since 1990. First listed as 'threatened' in 1999 by the Committee on the Status of Endangered Wildlife in Canada, the status of northern abalone was up-listed to 'endangered' in 2009, furthering the need for conservation planning. The northern Strait of Georgia has never been extensively surveyed for abalone and this study will be used as reference for future surveys in the area. A total of six northern abalone were found at four (13.3%) of the 30 sites surveyed. Overall density for the area was estimated to be 0.013 ± 0.007 abalone/m², which is below what is generally regarded as densities required for successful fertilization. The low numbers found in this survey may indicate poor abalone habitat and low levels of recruitment, along with poaching in accessible areas.

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