00000nam 2200000zi 4500 9.932493 CaOODSP 20240116140503 m o d f cr mn||||||||| 240115e197710 bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x7x7 Fs97-4/1437E-PDF Fs97-4/1437 Haegele, C. W., author. Assessment of herring spawnings in the vicinity of Nanoose Bay, B.C. / by C.W. Haegele and R.D. Humphreys. Nanaimo, British Columbia : Pacific Biological Station, Fisheries and Marine Service, Department of Fisheries and the Environment, October 1977. ©1977 1 online resource (iii, 37 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Fisheries and Marine Service manuscript report, 0701-7618 ; 1437 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 6-7). "An intensive underwater survey of two herring spawnings in and near Nanoose Bay, Strait of Georgia, was conducted during the 1976 herring spawning season. The spawnings were up to 650-m wide and eggs were deposited on a wide variety of substrates. An assessment of the spawnings by traditional techniques underestimated the area of the spawnings by 41% and 96%, mainly as a result of low width estimates of the subtidal portion of the spawn. Detailed topographic maps of spawning localities showing vegetation zones should alleviate problems associated with detecting and measuring herring spawn"--Abstract, page iii. Includes abstracts in English and French. Pacific herring Spawning British Columbia Vancouver Island. Vegetation mapping British Columbia Vancouver Island. Hareng du Pacifique Frai Colombie-Britannique Vancouver, Île de. Cartographie de la végétation Colombie-Britannique Vancouver, Île de. Canada. Fisheries and Marine Service, issuing body. Pacific Biological Station (1972- ), issuing body. Manuscript report (Canada. Fisheries and Marine Service) no. 1437. (CaOODSP)9.924185 PDF 948 KB https://publications.gc.ca/collections/collection_2024/mpo-dfo/fs97-4/Fs97-4-1437-eng.pdf