00000nam 2200000zi 4500 9.950296 CaOODSP 20250714135839 m o d f cr mn||||||||| 250422e198101##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x8 Fs97-4/1600E-PDF Fs97-4/1600 Haegele, C. W., author. Diving survey assessment of 1980 herring spawnings in British Columbia / by C.W. Haegele. Nanaimo, British Columbia : Department of Fisheries and Oceans, Resource Services Branch, Pacific Biological Station, January 1981. ©1981 1 online resource (iv, 111 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1600 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 9-11). "Diving surveys of herring spawn were made for some sections within most major geographical divisions of the coast. The most complete diving survey coverage was for the Strait of Georgia and the North Coast, there was limited coverage for the west coast of Vancouver Island and the Central Coast and there were no diving surveys in the Queen Charlotte Islands and in Johnstone Strait. Results from diving surveys were compared to results from Fishery Officer surveys. Compared to diving survey results, Fishery Officer survey results tended to underestimate the area of spawn and the quantity of eggs and there were regional differences in this discrepancy. Fishery Officers reported larger proportions of spawn on rockweed and rock, the predominant spawn substrate in the intertidal zone, than divers. Diver results showed that there are regional differences in spawn substrate type. Stock estimates from spawn deposition were made for sections surveyed by divers"--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. 1600. (CaOODSP)9.505211 PDF 1.85 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1600-eng.pdf