00000nam 2200000za 4500 9.850233 CaOODSP 20241203113641 cr ||||||||||| 180117s1988 onca||||o f000 0 eng d CaOODSP eng n-cn-bc CW69-9/176E-PDF Levels of polychlorinated dibenzodioxins and polychlorinated dibenzofurans in eggs of Great Blue Herons (Ardea herodias) in British Columbia, 1983-87 [electronic resource] : possible impacts on reproductive success / by J.E. Elliott ... [et al.]. [Ottawa] : Canadian Wildlife Service, 1988. 7, [4] p. : figs. Progress notes ; no. 176 "April 1988." Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Teneurs en dibenzodioxinnes polychlorées et en dibenzofurannes polychlorés dans les oeufs de grand hérons (Ardea herodias) en Colombie-Britannique, 1983-1987 : répercussions possibles sur le succès de la reproduction. Includes bibliographical references. "In 1982, a survey of polychlorinated dibenzo-p-dioxin (PCDD) and polychlorinated dibenzofuran (PCDF) levels in Canadian wildlife revealed that Great Blue Heron (Ardea herodias) eggs from a colony in the Fraser River estuary contained unusually high levels of PCDDs (Norstrom and Simon 1983). In this note, we report the results of studies undertaken in 1983-87 to measure PCDD and PCDF levels in heron eggs from several colonies along the Strait of Georgia and to determine their effect on Great Blue Heron reproductive success"--Introd. gccst Birds gccst Pollution gccst Environmental impact Elliott, John E., 1953- Canada. Environment Canada. Canadian Wildlife Service. Teneurs en dibenzodioxinnes polychlorées et en dibenzofurannes polychlorés dans les oeufs de grands hérons (Ardea herodias) en Colombie-Britannique, 1983-1987 (CaOODSP)9.860851 Progress notes (Canadian Wildlife Service) no. 176 (CaOODSP)9.504439 PDF 508 KB https://publications.gc.ca/collections/collection_2018/eccc/CW69-9-176-eng.pdf