Current state and trends in Canadian Arctic marine ecosystems: I. Primary production

Hexachlorocyclohexanes in Arctic and Antarctic Marine Ecosystems

Rare earth elements in freshwater, marine, and terrestrial ecosystems in the eastern Canadian Arctic.

Few ecotoxicological studies exist for rare earth elements (REEs), particularly field-based studies on their bioaccumulation and food web dynamics. REE mining has led to significant environmental impacts in several countries (China, Brazil, U.S.), yet little is known about the fate and transport of these contaminants of emerging concern. Northern ecosystems are potentially vulnerable to REE enr...

Evaluating Disease Trends in Marine Ecosystems

For decades, scientists accepted that the nucleic acids, DNA and RNA, packed with thousands of protein-coding genes, were the sole purveyors of genetic information; all inherited traits, from eye color to shoe size, must be stored and expressed through nucleic acid mechanisms. But prions are an exception. These misshapen proteins are capable of growing, replicating, and infecting other cells—th...

Mercury in Arctic marine ecosystems: sources, pathways and exposure.

Mercury in the Arctic is an important environmental and human health issue. The reliance of Northern Peoples on traditional foods, such as marine mammals, for subsistence means that they are particularly at risk from mercury exposure. The cycling of mercury in Arctic marine systems is reviewed here, with emphasis placed on the key sources, pathways and processes which regulate mercury levels in...

Canadian Marine Ecosystem Status and Trends

In 2001, the Canadian Councils of Resource Ministers (CCRM) named biodiversity reporting as a priority. As a result, the Biodiversity Outcomes Framework was developed to identify and link current and future priorities related to sustaining Canadian biodiversity, to engage Canadians on the planning and implementation of these priorities, and to report on progress. In 2006, the CCRM identified th...