Bioaccumulation of mercury in pelagic fishes from

0 downloads 0 Views 473KB Size Report
Rome. Vol. II. pp. 891–1421. Bloom, N.S. 1998. Determination of pictogram levels of methyl- mercury by aqueous phase ethylation, followed by cryogenic gas.

458

Bioaccumulation of mercury in pelagic fishes from the northern Gulf of Mexico Yan Cai, Jay R. Rooker, Gary A. Gill, and Jason P. Turner

Abstract: Total mercury (Hg) concentration was determined in the tissues of 10 pelagic fishes in the northern Gulf of Mexico, and dietary tracers (stable isotopes and fatty acids) were used to evaluate the relationship between Hg and feeding history. Highest Hg levels were observed in blue marlin (Makaira nigricans), carcharhinid sharks (Carcharhinus spp.), and little tunny (Euthynnus alletteratus), ranging from 1.08 to 10.52 ppm. Moderate to low concentrations (

Suggest Documents