| Literature DB >> 24661459 |
Lucero Correa1, Lorrie D Rea2, Rebecca Bentzen3, Todd M O'Hara3.
Abstract
Concentrations of total mercury ([THg]) and selenium ([TSe]) were measured in several tissue compartments in Steller sea lion (Eumetopias jubatus) pups; in addition we determined specific compartment and body burdens of THg. Compartmental and body burdens were calculated by multiplying specific compartment fresh weight by the [THg] (summing compartment burdens equals body burden). In all 6 pup tissue sets (1) highest [THg] was in hair, (2) lowest [THg] was in bone, and (3) pelt, muscle and liver burdens contributed the top three highest percentages of THg body burden. In 5 of 6 pups the Se:Hg molar ratios among compartments ranged from 0.9 to 43.0. The pup with the highest hair [THg] had Se:Hg molar ratios in 9 of 14 compartments that were ⩽ 0.7 potentially indicating an inadequate [TSe] relative to [THg].Entities:
Keywords: Burden; Mercury; Molar ratio; Selenium; Steller sea lions
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Year: 2014 PMID： 24661459 PMCID： PMC4123997 DOI： 10.1016/j.marpolbul.2014.02.022
Source DB: PubMed Journal: Mar Pollut Bull ISSN： 0025-326X Impact factor: 5.553