00000nam 2200000zi 4500 9.953391 CaOODSP 20250718133214 m o d f cr mn||||||||| 250718e198802##bccb ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x8 Fs97-4/1976E-PDF Fs97-4/1976E Haegele, C. W., author. Herring stock estimates from spawn surveys for the north coast of British Columbia in 1986 / by C.W. Haegele and J.F. Schweigert. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, February 1988. ©1988 1 online resource (iii, 28 pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1976 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (page 6). "From diving and surface surveys of spawn, 24,354 tonnes of herring were estimated to have spawned in the North Coast District of British Columbia in 1986. In Chatham Sound (Areas 3 and 4N) 16,835 tonnes spawned in three waves, with 97% spawning in the second wave. On north Porcher Island (Area 4S) 1939 tonnes spawned in a first wave in Hunt Inlet and 436 tonnes spawned in a second wave in Malacca Passage, for a total of 2375 tonnes. An estimated 4181 tonnes spawned on south Porcher Island (Area 5N) and 963 t in Area 5S. Estimated spawner biomass was three times greater in 1986 than in 1982, when the last diving survey was made. Spawn surveyed by divers was deposited over a narrow depth range on gradually sloped shorelines"--Abstract, page iii. Includes abstracts in English and French. Pacific herring British Columbia Pacific Coast. Pacific herring Eggs British Columbia Pacific Coast. Fish populations Estimates British Columbia Pacific Coast. Hareng du Pacifique Colombie-Britannique Pacifique, Côte du. Hareng du Pacifique Œufs Colombie-Britannique Pacifique, Côte du. Poissons Populations Estimation 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 ; no. 1976. (CaOODSP)9.505211 PDF 740 KB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1976-eng.pdf