| biological effects of polychlorinated dibenzo-p-dioxins, dibenzofurans, and biphenyls in double-crested cormorant chicks (phalacrocorax auritus). | the present project assessed the effect of environmental contamination with polychlorinated dibenzo-p-dioxins (pcdds), dibenzofurans (pcdfs), and biphenyls (pcbs) on hepatic microsomal ethoxyresorufin o-deethylase (erod) activities and morphological parameters in matched double-crested cormorant (phalacrocorax auritus) hatchlings from egg clutches chosen for chemical analysis. double-crested cormorant eggs were collected from five colonies across canada, with differing levels of contamination. l ... | 1994 | 8301702 |