00000nam 2200000zi 4500 9.932652 CaOODSP 20250530144802 m o d f cr mn||||||||| 240118e197909##bccb ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x7x7 Fs97-4/1536E-PDF Fs97-4/1536 Haegele, C. W., author. Shoreline vegetation on herring spawning grounds in Clayoquot Sound / by C.W. Haegele and M.J. Hamey. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries and Marine Service, Resource Services Branch, Pacific Biological Station, September 1979. ©1979 1 online resource (iii, 39 pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Fisheries and Marine Service manuscript report, 0701-7618 ; 1536 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (page 4). "The ability to accurately record and assess herring spawnings depends to a considerable degree on a knowledge of the vegetative substrate upon which the adhesive eggs are deposited. Large format colour and colour-infrared photographs were obtained for 87 km of shoreline in Clayoquot Sound on June 26, 1978. Vegetation maps were prepared from these using colour and texture keys previously developed. There were 1561 ha of vegetation mapped with sea grasses accounting for 55%, the remainder being associations of red and brown algae. A diver survey of herring spawnings in March 1979 was used to field check the vegetation mapping. The presence of vegetation was identified on aerial photographs for 99% of samples collected by divers along transects and correctly typed for 95% of samples. Sand was the predominant bottom type. The middle two-thirds of the samples were collected between -0.6 and -2.5 m. The percent cover of vegetation was also highest at this depth range at 56(±4), while it was 53(±9) above -0.6m and 34(±5) below -2.5m"--Abstract, page iii. Includes abstracts in English and French. Marine plants British Columbia Clayoquot Sound Maps. Vegetation mapping British Columbia Clayoquot Sound. Pacific herring Spawning British Columbia Clayoquot Sound. Flore marine Colombie-Britannique Clayoquot, Chenal de Cartes. Cartographie de la végétation Colombie-Britannique Clayoquot, Chenal de. Hareng du Pacifique Frai Colombie-Britannique Clayoquot, Chenal de. Canada. Fisheries and Marine Service, issuing body. Pacific Biological Station (1972- ), issuing body. Manuscript report (Canada. Fisheries and Marine Service) no. 1536. (CaOODSP)9.924185 PDF 1.82 MB https://publications.gc.ca/collections/collection_2024/mpo-dfo/fs97-4/Fs97-4-1536-eng.pdf