00000nam 2200000zi 4500 9.876253 CaOODSP 20221107164645 m o d f cr |n||||||||| 190712s1980 nfca o f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-nf Fs70-8/80-35E-PDF Bowering, W. R. (William Raymond), 1950- Trends in stock structure of witch flounder on St. Pierre Bank from biomass surveys / by W.R. Bowering and J. Baird. St. John's, Newfoundland : Research and Resource Services, Department of Fisheries & Oceans, [1980] 1 online resource (12 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 80/35 "Not to be cited without permission of authors." "Landings of witch flounder on St. Pierre Bank has fluctuated from 570 t to 4805 t over the past 17 years. It is mainly a by-catch fishery of other species such as cod and redfish, however, years of high catch were probably more a directed fishery when it was not possible to fish other species. Incomplete biomass surveys indicated relative stability in the stock over the past several years, however, it was not possible to obtain biomass estimates for the whole stock area. It was found that the numbers of old fish found in the catches of earlier years now appear to have been removed almost entirely"--Abstract. Includes abstract in French. gccst Fish gccst Surveys Canada. Department of Fisheries and Oceans. Newfoundland Region. Research and Resource Services Directorate‏. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 80/35 (CaOODSP)9.869616 PDF 744 KB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-80-35-eng.pdf