00000nam 2200000zi 4500 9.956817 CaOODSP 20251030091624 m o d f cr mn||||||||| 251029e198907##bccb ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x5x8 Fs97-4/2028E-PDF Fs97-4/2028E Haist, V., author. Stock assessments for British Columbia herring in 1988 and forecasts of the potential catch in 1989 / by V. Haist and J.F. Schweigert. Nanaimo, British Columbia : Department of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station, July 1989. ©1989 1 online resource (ix, 48 pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 2028 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 28-29). "Herring stock abundance in British Columbia waters was assessed for 1988 and forecasts were made for 1989 using two analytical methods: (1) escapement model; and (2) age-structured model. Diving spawn survey data was utilized in the escapement model wherever available. Forecasts of pre-fishery biomass are obtained by weighting the estimates from the two models. The forecasts are for 101,600 tonnes to the northern and 104,500 tonnes to the southern stock assessment regions. These estimates represent significant increases from 1988 levels, reflecting average to good recruitments to all areas during the last spawning run. The recommended 1989 catch (20% of the 1989 forecast herring run) for the entire B.C. coast is 41,200 tonnes. All areas should be available to the fishery in 1989"--Abstract, page iv. Includes abstracts in English and French. Pacific herring British Columbia Pacific Coast. Pacific herring fisheries British Columbia Pacific Coast. Fish stock assessment British Columbia Pacific Coast. Pacific herring fisheries British Columbia Pacific Coast Forecasting. Hareng du Pacifique Colombie-Britannique Pacifique, Côte du. Hareng du Pacifique Pêche commerciale Colombie-Britannique Pacifique, Côte du. Ressources halieutiques Évaluation Colombie-Britannique Pacifique, Côte du. Hareng du Pacifique Pêche commerciale Colombie-Britannique Pacifique, Côte du Prévision. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; no. 2028. (CaOODSP)9.505211 PDF 1.48 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-2028-eng.pdf