Total and organic mercury in the starfish Ctenodiscus crispatus and the polychaete Maldanes sarsi from the Barents Sea

Total and organic mercury concentrations were measured in starfish ( n = 116) and in polychaetes ( n = 30) as a part of a broader ecotoxicological study of the Barents Sea. Total mercury concentration in starfish from the open sea was similar in both Arctic (0.2 μg/g dry wt.) and Atlantic (0.2 μg/g...

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Bibliographic Details
Published in:The Science of the total environment 1997-01, Vol.201 (3), p.189-194
Main Authors: Ali, I.B., Joiris, C.R., Holsbeek, L.
Format: Article
Language:English
Subjects:
Asteroidea
BARENTS SEA
Ctenodiscus crispatus
ECOLOGIA
ECOLOGIE
ECOLOGY
FISHES
Maldane sarsi
Maldanes sarsi
MAR BARENTS
Marine
MER DE BARENTS
MERCURE
MERCURIO
MERCURY
PECES
POISSON (ANIMAL)
Polychaete
Starfish
TOXICOLOGIA
TOXICOLOGIE
TOXICOLOGY
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Summary:Total and organic mercury concentrations were measured in starfish ( n = 116) and in polychaetes ( n = 30) as a part of a broader ecotoxicological study of the Barents Sea. Total mercury concentration in starfish from the open sea was similar in both Arctic (0.2 μg/g dry wt.) and Atlantic (0.2 μg/g dry wt.) water masses but was higher in the samples from the coast of Novaya Zemlya (0.3 μg/g dry wt.). Though there was no difference in total mercury concentration between polychaete and starfish from the coast, there was a difference in speciation: the polychaetes had a higher percentage of methyl mercury (100%) compared to the starfish (3%). Total mercury concentration in these Barents Sea benthic invertebrates (0.25 μg/g dry wt.) was higher than in pelagic fish (0.07 μg/g dry wt.) but similar to demersal fish and particulate matter (0.25 μg/g dry wt.). They were all considered as close to pristine values.
ISSN:0048-9697
1879-1026
DOI:10.1016/S0048-9697(97)84056-9