00000nam 2200000za 4500 9.612463 CaOODSP 20240527135427 ta 150406|1995||||xxc||||| f|0| 0 eng d 0-662-20535-9 0831-6481 CaOODSP eng n-cn--- CW69-5/169E Canadian Wildlife Service. Food chain sources of polychlorinated dioxins and furans to Great Blue Herons (Ardea herodias) foraging in the Fraser River estuary, British Columbia / by A. Harfenist et al. Issued by the Pacific and Yukon Region. Ottawa - Ontario : Environment Canada. 1995. iii, 26p. : fig., graphs, references, tables ; 28 cm. Technical report 0831-6481 169 "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."--Abstract. 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.--Abstract Issued also in electronic format. Résumés en français Softcover 95-29 1995-07-21 Birds gcpds Harfenist, A. Food chain sources of polychlorinated dioxins and furans to great blue herons (Ardea herodias) foraging in the Fraser River Estuary, British Columbia (CaOODSP)9.857308 Technical report, 0831-6481 169 (CaOODSP)9.514491