00000nam 2200000za 4500 9.857308 CaOODSP 20241203113643 cr ||||||||||| 180604s1995 bccbd o f00| 0 eng d CaOODSP eng eng fre n-cn-bc CW69-5/169E-PDF Food chain sources of polychlorinated dioxins and furans to great blue herons (Ardea herodias) foraging in the Fraser River Estuary, British Columbia [electronic resource] / A. Harfenist ... [et al.]. Delta, B.C. : Canadian Wildlife Service, Pacific and Yukon Region, 1995. iii, 26 p. : map, charts. Technical report series ; no. 169 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (p. 15-18). "Polychlorinated dibenzodioxin (PCDD) and polychlorinated dibenzofuran (PCDF) levels in the prey of Great Blue Herons (Ardea herodias) foraging on the Fraser River estuary tidal flats were determined in 1991. Observations of herons foraging at Iona and Westham Islands showed that starry flounder (Platichthys stellatus) and Pacific staghom sculpin (Leptocottus armatus) were the major prey species throughout the year. During the summer months the herons at Westham Island foraged extensively on other species as well"--Abstract. Issued also in print format. Includes abstract in French. gccst Birds gccst Food gccst Pollutants Great blue heron Harfenist, Anne, 1957- Canada. Environment Canada. Canadian Wildlife Service. Pacific and Yukon Region. Food chain sources of polychlorinated dioxins and furans to Great Blue Herons (Ardea herodias) foraging in the Fraser River estuary, British Columbia / (CaOODSP)9.612463 Technical report series (Canadian Wildlife Service) no. 169. (CaOODSP)9.504438 PDF 12.61 MB https://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-169-eng.pdf