Document Detail


Differential concentration of Technetium-99 ((99)Tc) in common intertidal molluscs with different food habits.
MedLine Citation:
PMID:  21925686     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Concentration of (99)Tc has been measured in fucoids and molluscs, sampled in a sheltered intertidal at the southwest coast of Norway from February to November 2006. The concentrations of (99)Tc in molluscs differed significantly between species. The filtering bivalve Mytilus edulis had the lowest concentrations with averages of 2.3-5.9Bqkg(-1)d.w., while the herbivorous gastropods Littorinalittorina, Littorina obtusata and Patella vulgata had higher concentrations. P. vulgata and L. obtusata had the highest concentrations, 40-47 and 26-30Bqkg(-1)d.w., respectively. L. obtusata has a specialized habit of living, and prefers to feed on fucoids. P. vulgata can graze extensively on the fucoid Ascophyllum nodosum when available. Fucoids are known to have very high uptake of (99)Tc, and this was also found in the present study. The high (99)Tc-concentrations of L. obtusata and P. vulgata are most likely due to their habit of feeding on fucoids.
Authors:
K Sjøtun; H E Heldal; D S Brakstad
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-16
Journal Detail:
Title:  Marine pollution bulletin     Volume:  -     ISSN:  1879-3363     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
University of Bergen, Department of Biology, P.O. Box 7803, 5020 Bergen, Norway.
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