- Ecological Services
- Endangered Species
- Habitat Conservation
- Wetlands Inventory
|Regional Issue: Mercury||News and Highlights||
Bottom-feeding fish exposed to mercury in food and sand
The Problem and Effects:
DDT was a major reason for the decline of the bald eagle in North America in the 1950s and 1960s. DDT and its breakdown products, DDD and DDE, are toxic to embryos and disrupt calcium absorption and impair eggshell quality.
What We're Doing:
However, mercury levels in muscle tissue from shortnose sturgeons Maine were elevated compared to tissue threshold effect levels and similar to concentrations found in Maine's freshwater predator fish species like bass and pickerel.
Three reports on contaminants and sturgeon are available online here.
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May 22, 2013