00000cam 2200000zi 4500 9.964380 CaOODSP 20260720145800 m o d f cr mn||||||||| 260720t20002000bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x9x9 Fs97-4/2546E-PDF Fs97-4/2546E Bureau, D. (Dominique), 1970- author. Survey of red sea urchin populations near Comox, Denman Island and Hornby Island, British Columbia, 1999 / by D. Bureau, A. Campbell, and W.C. Hajas. Nanaimo, British Columbia : Fisheries and Oceans Canada, Science Branch, Pacific Region, Pacific Biological Station, 2000. ©2000 1 online resource (iii, 17 pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 2546 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 8-9). "A survey of red sea urchin populations in parts of Pacific Fishery Management (PFM) Area 14 (Comox, Denman Island and Hornby Island), was conducted in June 1999. A total of 61 randomly placed transects were surveyed by SCUBA divers. Densities and biomass were estimated on a per PFM sub-area basis. Density ranged from 0.20 to 0.79 urchins per m²; overall mean density was 0.59 urchins per m². Biomass ranged from 60.2 to 281.5 g per m²; overall mean biomass was 165.4 g per m². Size frequency distributions showed relatively strong recruitment in some PFM sub-areas. Overall, 22.2% of the total urchins measured were ≤50mm test diameter (TD) whereas 38.6% were of legal size (≥100mm TD) for the commercial fishery"--Abstract, page iii. Includes abstracts in English and French. Red sea urchin British Columbia Pacific Coast. Sea urchin populations British Columbia Pacific Coast. Invertebrate surveys British Columbia Pacific Coast. Oursin rouge Colombie-Britannique Pacifique, Côte du. Oursins 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. Canadian manuscript report of fisheries and aquatic sciences ; 2546. (CaOODSP)9.505211 PDF 436 KB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2546-eng.pdf