00000cam 2200000zi 4500 9.964446 CaOODSP 20260723073810 m o d f cr bn||||||||| 260722t20072007bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x7y0 Fs97-4/2791E-PDF Fs97-4/2791E Lessard, Joanne, author. Resurvey of northern abalone, Haliotis kamtschatkana, populations along the central coast of British Columbia, April 2001 / by J. Lessard, M. Atkins, and A. Campbell. Nanaimo, British Columbia : Fisheries & Oceans Canada, Science Branch, Pacific Region, Pacific Biological Station, 2007. ©2007 1 online resource (vi, 35 pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 2791 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 6-8). "As a result of over-exploitation, the legal harvest of northern abalone, Haliotis kamtschatkana, was closed in 1990. Since 1978, the Department of Fisheries and Oceans Canada has conducted periodic surveys of index sites along the coast of British Columbia (BC) to monitor the status of abalone populations. In 2001, the index sites along the central coast of BC were resurveyed. Two hundred and thirty abalone were measured at 40 (72.7%) of the 55 historic index sites surveyed. The overall density was 0.27 abalone/m²; the lowest density observed in the nine surveys of this area since 1978. Densities of mature (≥70 mm shell length) abalone were also at their lowest levels. Abalone ≥100 mm shell length were observed at only 25% of sites surveyed. Statistical comparisons were made for size and density across years. There was no evidence of abalone population recovery along the central coast. Poaching continues to be the main concern preventing the recovery of abalone populations in British Columbia"--Abstract, page vi. Includes abstracts in English and French. Pinto abalone British Columbia Pacific Coast. Abalone populations British Columbia Pacific Coast. Invertebrate surveys British Columbia Pacific Coast. Ormeau nordique Colombie-Britannique Pacifique, Côte du. Ormeaux (Mollusques) Populations Colombie-Britannique Pacifique, Côte du. Invertébrés Inventaires Colombie-Britannique Pacifique, Côte du. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Resurvey of Northern abalone, Haliotis kamtschatkana, populations along the central coast of British Columbia, April 2001 / (CaOODSP)9.618379 Canadian manuscript report of fisheries and aquatic sciences ; 2791. (CaOODSP)9.505211 PDF 2.25 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2791-eng.pdf