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Copper load in Mute Swans (Cygnus olor) found in Denmark
Nordisk Veterinaermedicin
|June 1, 1978
Summary
Mule swans exposed to copper pollution showed significantly higher liver copper levels, more than double that of swans from unpolluted areas. This highlights the bioaccumulation of copper in wildlife due to environmental contamination.
Area of Science:
- Environmental toxicology
- Wildlife health
- Heavy metal analysis
Background:
- Mule swans (Cygnus olor) are sensitive indicators of aquatic ecosystem health.
- Heavy metal pollution, particularly copper, poses risks to wildlife.
- Understanding metal bioaccumulation is crucial for conservation efforts.
Purpose of the Study:
- To assess copper and lead levels in Mule Swan organs.
- To investigate the impact of a known copper-polluted area on swan tissues.
- To establish baseline metal concentrations in Danish Mule Swans.
Main Methods:
- Analysis of liver and other organs from 91 Mule Swans.
- Quantification of copper and lead concentrations using established analytical techniques.
- Comparison of metal levels between swans from polluted and non-polluted regions.
Main Results:
- Significantly elevated copper levels (nearly 1100 mg/kg) were found in the livers of swans from the polluted area.
- Copper concentrations in affected swans were more than double those found in swans from other Danish regions.
- Lead levels were also analyzed, though copper showed the most pronounced difference.
Conclusions:
- Environmental copper pollution demonstrably leads to high bioaccumulation in Mule Swan livers.
- Mule Swans serve as effective bioindicators for copper contamination in aquatic environments.
- The findings underscore the need for managing copper pollution to protect wildlife.