Elevated mercury levels in a declining population of ivory gulls in the Canadian Arctic.

  title={Elevated mercury levels in a declining population of ivory gulls in the Canadian Arctic.},
  author={Birgit M. Braune and Mark L. Mallory and H. Grant Gilchrist},
  journal={Marine pollution bulletin},
  volume={52 8},

Rapidly increasing methyl mercury in endangered ivory gull (Pagophila eburnea) feathers over a 130 year record

Mercury (Hg) is increasing in marine food webs, especially at high latitudes. The bioaccumulation and biomagnification of methyl mercury (MeHg) has serious effects on wildlife, and is most evident in

High levels of contaminants in ivory gull Pagophila eburnea eggs from the Russian and Norwegian Arctic.

High levels of contaminants, in particular organochlorines, are found in eggs of the ivory gull Pagophila eburnea, a high Arctic seabird species threatened by climate change and contaminants, are identified as an important stressor in a species already at risk due to environmental change.

Circumpolar contamination in eggs of the high‐Arctic ivory gull Pagophila eburnea

Overall, the levels of OCs, BFRs, and PFASs did not suggest direct lethal exposure to these compounds, but their potential synergetic/additive sublethal effects warrant monitoring.

Trace Element Concentrations in Relation to the Trophic Behaviour of Endangered Ivory Gulls (Pagophila eburnea) During Their Stay at a Breeding Site in Svalbard

This study demonstrated individual differences in trophic behaviour that triggered discrepancies in Hg concentrations, highlighting the potential biomagnifying ability of this metal in the ivory gull’s food web.

Spatial ecotoxicology: migratory Arctic seabirds are exposed to mercury contamination while overwintering in the northwest Atlantic.

It is shown that little auks were ∼ 3.5 times more contaminated when outside the breeding season, and that Hg that accumulated during this nonbreeding non-Arctic period was related to egg size the following season, with females having more Hg laying smaller eggs.

Mercury bioaccumulation and biomagnification in a small Arctic polynya ecosystem.

Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic

The ivory gull Pagophila eburnea is a rare Arctic seabird that breeds in remote loca- tions; little is known of its winter distribution and behaviour. It is listed under Canadian legislation as

Marine Foraging Birds As Bioindicators of Mercury in the Gulf of Maine

E eggs are the preferred tissue for long-term Hg monitoring because the relative ease in collecting eggs ensures consistent and robust datasets, and common eider, Leach’s storm-petrel, double-crested cormorant, and black guillemot are the most effective bioindicators of Hg of the Gulf of Maine.

Inter- and intraclutch variation in egg mercury levels in marine bird species from the Canadian Arctic.

Distribution and Diet of Ivory Gulls ( Pagophila eburnea ) in the North Water

It is concluded that differences among individuals in their winter diets or foraging locations are possible, and stable isotope results indicated that ivory gull trophic levels were high but varied over the season.



Biogeographic provinces of total and methyl mercury in zooplankton and fish from the Beaufort and Chukchi seas: results from the SHEBA drift.

Given that large animals such as whales selectively forage in regions of higher food concentration such as fronts, recent change in the ice climate of the western Arctic Ocean may provide the means to change their exposure to mercury thus explaining observed increases in mercury concentrations in western beluga whales during the 1990s.

Effects of mercury on wildlife: A comprehensive review

A critique of the current state of knowledge about effects of Hg on wildlife is presented as an aid to identifying missing information and to planning research needed for conducting a complete assessment of HG risks to wildlife.

Spatial and temporal trends and effects of contaminants in the Canadian Arctic marine ecosystem: a review.