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Selenium accumulation in the cockle Anadara trapezia

journal contribution
posted on 06.12.2017, 00:00 authored by D Jolley, W Maher, Jennelle KydJennelle Kyd
An extensive study on Se accumulation in a population of Anadara trapezia from a marine lake is reported. The effects of organism mass, gender, reproductive cycle, and season on Se accumulation and tissue distribution were investigated. Analyses showed that gender and reproductive cycle had no significant effect on Se accumulation. A. trapezia showed a strong positive correlation between Se burden and tissue mass. Constant Se concentrations were observed within individual populations but varied spatially with sediment Se concentrations. Se concentrations in tissues decreased from gills > gonad/intestine > mantle > muscle > foot, which remained constant over 12 months, however, significantly lower concentrations were observed in the summer compared to winter. A. trapezia is a good biomonitor for Se, as gender and size do not effect concentration, however, season of collection must be reported if changes in Se bioavailability are to be identified in short term studies, or during intersite comparisons.

History

Volume

132

Start Page

203

End Page

212

Number of Pages

10

eISSN

1873-6424

ISSN

0269-7491

Location

United Kingdom

Publisher

Pergamon

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

University of Canberra; University of Wollongong;

Era Eligible

Yes

Journal

Environmental pollution.