00000nam 2200000zi 4500 9.873268 CaOODSP 20250526150823 m o d f cr ||||||||||| 190521s1982 nsca|||#ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-ns Fs70-8/82-11E-PDF Zwanenburg, Kees Cornelis Tieleman, 1954- author. 1982 status report on the 4VX redfish / K. Zwanenburg, T. Kenchington and M.-L. Dickson. Dartmouth, Nova Scotia : Marine Fish Division, Bedford Institute of Oceanography, [1982]. 1 online resource (30 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 82/11 Caption title. Digitized edtion from print [produced by Department of Fisheries and Oceans]. "Not to be cited without permission of the authors." Includes bibliographical reference (page 7). "Due to a lack of aged materials available for redfish in divisions 4VWX no cohort analyses are possible. We therefore examined several indices of stock status. Landings have increased since 1979 to a provisional total of 18,267 mt in 1981. Second, three of four catch rate series indicate increasing catch rates over the past few years. Finally, the results of a recent research vessel survey for redfish indicated substantially higher biomass estimates than general groundfish surveys conducted previously in the same areas. In addition this survey indicated substantial concentrations of redfish between 200-300 fathoms depths, which have not been surveyed previously." Includes abstract in French. gccst Fisheries gccst Salt water fish Kenchington, Trevor John, author. Dickson, Mary-Lynn, 1959- author. Canada. Department of Fisheries and Oceans. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 82/11 (CaOODSP)9.869616 PDF 1.66 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-82-11-eng.pdf