AI Article Synopsis
- The study investigated mercury (Hg) levels in seawater and copepods near hydrothermal vents at Kueishan Island, highlighting differences between polluted and clean environments.
- Seawater from the vents had significantly high Hg concentrations (50.6-256 ng l(-1)), while copepods showed a slightly elevated Hg content (0.08-0.88 μg g(-1)).
- The research revealed a strong bioaccumulation potential in copepods, with bioconcentration factors ranging from 10^3 to 10^6, and a notable abundance of Temora turbinata in the vent area despite reduced species diversity.
Article Abstract
The Hg concentration in seawater and copepod samples collected from the area around hydrothermal vents at Kueishan Island and the adjacent marine environment in northeastern Taiwan were analyzed to study Hg bioaccumulation in copepods living in polluted and clean marine environments. The seawater collected from the hydrothermal vent area had an extremely high concentration of dissolved Hg, 50.6-256 ng l(-1). There was slightly higher Hg content in the copepods, 0.08-0.88 μg g(-1). The dissolved Hg concentration in the hydrothermal vent seawater was two to three orders of magnitude higher than that in the adjacent environment. The bioconcentration factor of the studied copepods ranged within 10(3)-10(6), and showed higher dissolved concentration as the bioconcentration factor was lower. A substantial abundance, but with less copepod diversity was recorded in the seawater around the hydrothermal vent area. Temora turbinata was the species of opportunity under the hydrothermal vent influence.
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| http://dx.doi.org/10.1016/j.marpolbul.2013.07.007 | DOI Listing |
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