00000nam 2200000zi 4500 9.951548 CaOODSP 20250530104818 m o d f cr mn||||||||| 250529e198403##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x8 Fs97-4/1754E-PDF Fs97-4/1754E Saunders, M. W., author. Abundance, distribution, and biology of spiny dogfish (Squalus acanthias) in Hecate Strait during Sept 7-Oct 1, 1982 / by M.W. Saunders, G.A. McFarlane, and M.S. Smith. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, March 1984. ©1984 1 online resource (iv, 161 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1754 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 7-9). "A random, stratified trawl survey was conducted in Hecate Strait, British Columbia, Sept 7-Oct 1, 1982, the purpose of which was to provide information regarding the abundance, distribution, and biology of the spiny dogfish (Squalus acanthias). The total biomass of marketable-sized dogfish (>70 cm), for Hecate Strait, between depths of 18 to 183 meters (10-100 fath) was 59,958-±23,317 t, calculated using the area swept between the doors and a catching coefficient of 0.6. The total biomass calculated over the same area using the area swept by the net and a catching coefficient of 1.0 was 102,822-±39,997 t. A total of 11,101 fish were sampled for length and sex, of which 65% were female. Lengths ranged from 51-99 cm for males and from 46-128 cm for females. The majority (97%) were longer than 60 cm. The lengths at 50% maturity calculated for 1673 males and 2910 females were 72.3 cm and 94.2 cm, respectively. This report also presents all biological data collected during the cruise as well as haul locations and catch summaries"--Abstract, page iii. Includes abstracts in English and French. Spiny dogfish British Columbia Hecate Strait. Spiny dogfish British Columbia Hecate Strait Geographical distribution. Fish populations Estimates British Columbia Hecate Strait. Fish surveys British Columbia Hecate Strait. Aiguillat commun Colombie-Britannique Hécate, Détroit d'. Aiguillat commun Colombie-Britannique Hécate, Détroit d' Distribution géographique. Poissons Populations Estimation Colombie-Britannique Hécate, Détroit d'. Inventaires ichtyologiques Colombie-Britannique Hécate, Détroit d'. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; no. 1754. (CaOODSP)9.505211 PDF 3.23 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1754-eng.pdf