Biomarker responses associated with halogenated organic contaminants in northern fulmars (Fulmarus glacialis) breeding in the Canadian Arctic

► EROD induction occurs in northern fulmars at environmentally-relevant concentrations. ► No relationships between hepatic retinoid or plasma thyroid hormone levels and dioxin-like compounds or TEQs. ► Biomarker responses did not differ between males and females or between colonies.