00000nam 2200000zi 4500 9.949234 CaOODSP 20250318151052 m o d f cr mn||||||||| 250318e198412##bccb ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x6x8 Fs97-6/1331E-PDF Fs97-6/1331E Bourne, N. (Neil), 1929- author. Clam predation by scoter ducks in the Strait of Georgia, British Columbia, Canada / by Neil Bourne. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, December 1984. ©1984 1 online resource (iii, 17 pages) : map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of fisheries and aquatic sciences, 0706-6457 ; no. 1331 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 7-9). "Collections were made of three species of scoter ducks, white-winged, surf and black, Melanitta deglandi, M. perspicillata and M. nigra, wintering at two clam beaches in southern British Columbia. Analysis of the crop and gizzard contents showed these ducks were feeding primarily on bivalves in the intertidal area. The commercially-important littleneck and manila clams, Protothaca staminea and Tapes philippinarum, comprised over half the gut contents of scoters. It was estimated that a wintering flock of 200 scoters could remove 5.3 to 15.9 tonnes of littleneck and/or manila clams from these two beaches in a six month period"--Abstract, page iii. Includes abstracts in English and French. Scoters Food Georgia, Strait of (B.C. and Wash.) Pacific littleneck Predators of Georgia, Strait of (B.C. and Wash.) Manila clam Predators of Georgia, Strait of (B.C. and Wash.) Bivalves Predators of Georgia, Strait of (B.C. and Wash.) Macreuses Alimentation Géorgie, Détroit de (C.-B. et Wash.) Palourde du Pacifique Prédateurs Géorgie, Détroit de (C.-B. et Wash.) Palourde japonaise Prédateurs Géorgie, Détroit de (C.-B. et Wash.) Bivalves Prédateurs Géorgie, Détroit de (C.-B. et Wash.) Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian technical report of fisheries and aquatic sciences ; no. 1331. (CaOODSP)9.504449 PDF 658 KB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-6/Fs97-6-1331-eng.pdf