00000nam 2200000zi 4500 9.932484 CaOODSP 20250424124900 m o d f cr mn||||||||| 240115e197710##bccb ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x7x7 Fs97-4/1433E-PDF Fs97-4/1433 Haegele, C. W., author. Vegetation survey of herring spawning localities in Ganges Harbour, B.C. / by Carl W. Haegele. Nanaimo, British Columbia : Pacific Biological Station, Fisheries and Marine Service, Department of Fisheries and the Environment, October 1977. ©1977 1 online resource (iii, 17 pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Fisheries and Marine Service manuscript report, 0701-7618 ; 1433 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 4-5). "The ability to accurately record and assess herring spawn depositions depends to a considerable degree on a knowledge of the vegetative substrate upon which the adhesive eggs are deposited. A map of the shoreline vegetation in Ganges Harbour and vicinity was prepared from aerial photographs of this region taken in July 1975. Just prior to the 1977 herring spawning season, an underwater survey of vegetation in Ganges Harbour was undertaken by divers to ground-check the map. The divers found a large amount of loose drifting vegetation in this area which would not have been distinguishable from rooted vegetation in aerial photographs. Also, in some locations the rooted vegetation was so sparse (as low as 1% cover) that it was either misidentified or missed altogether in interpreting the aerial photographs. In spite of these problems (which were probably unusually acute in this area) the vegetation map prepared from aerial photographs was generally accurate and provided a satisfactory basis for assessing the distribution and abundance of herring egg depositions"--Abstract, page iii. Includes abstracts in English and French. Vegetation mapping British Columbia Saltspring Island. Marine plants British Columbia Saltspring Island Maps. Pacific herring Spawning British Columbia Saltspring Island. Cartographie de la végétation Colombie-Britannique Saltspring, Île. Flore marine Colombie-Britannique Saltspring, Île Cartes. Hareng du Pacifique Frai Colombie-Britannique Saltspring, Île. Canada. Fisheries and Marine Service, issuing body. Pacific Biological Station (1972- ), issuing body. Manuscript report (Canada. Fisheries and Marine Service) no. 1433. (CaOODSP)9.924185 PDF 778 KB https://publications.gc.ca/collections/collection_2024/mpo-dfo/fs97-4/Fs97-4-1433-eng.pdf