Occurrence and Effects of Organotins on Adult Common Whelk ( Buccinum undatum) (Mollusca, Gastropoda) in Harbours and in a Simulated Dredging Situation

Transplanted common whelk ( Buccinum undatum) (Mollusca, Gastropoda) accumulated fairly high levels of organotins (tributyltin (TBT) and triphenyltin (TPT)) during exposure in three harbours with different TBT contamination. This did not though lead to an increase in imposex frequency in the adult f...

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Bibliographic Details
Published in:Marine pollution bulletin 2001-05, Vol.42 (5), p.370-376
Main Authors: Svavarsson, J, Granmo, Å, Ekelund, R, Szpunar, J
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Animals
Applied ecology
bioavailability
Biological and medical sciences
Biological Availability
Buccinum undatum
dredging
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on protozoa and invertebrates
Environment
Female
Fundamental and applied biological sciences. Psychology
Gastropoda
Geologic Sediments
Gonads - abnormalities
harbours
Iceland
Male
Mollusca
Mollusca - metabolism
Organotin Compounds - analysis
Organotin Compounds - pharmacokinetics
organotins
Random Allocation
Seawater
sediment
TBT
Trialkyltin Compounds - analysis
Trialkyltin Compounds - pharmacokinetics
tributyltin
triphenyltin
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - pharmacokinetics
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Summary:Transplanted common whelk ( Buccinum undatum) (Mollusca, Gastropoda) accumulated fairly high levels of organotins (tributyltin (TBT) and triphenyltin (TPT)) during exposure in three harbours with different TBT contamination. This did not though lead to an increase in imposex frequency in the adult females studied. Simulating harbour dredging in an experiment using suspended sediment from one of the harbours only resulted in a low concentration of TBT in the tissues of the common whelk and subsequently no changes in the occurrence and degree of imposex. The common whelk seemed to receive the main part of TBT from the water column and the limited bioaccumulation in the experiment indicates that desorption of TBT from the suspended sediment was slow. After TBT has been totally banned, dredging of contaminated sediments will cause increased exposure of the biota to TBT. Due to slow desorption the increase may however, be slight and temporary to pelagic and epibenthic species unless the settled particles are resuspended.
ISSN:0025-326X
1879-3363
DOI:10.1016/S0025-326X(00)00164-8