Description of imposex and butyltin burden in Nassarius mutabilis from the lagoon of Bizerta (northern Tunisia)

Description of imposex and butyltin burden in Nassarius mutabilis from the lagoon of Bizerta... Imposex occurrence in the changeable nassa Nassarius (Sphaeronassa) mutabilis (Linnaeus, 1758) was confirmed in the present study. Advanced imposex stages were discovered for the first time in this nassarid starting from the initial appearance of the vas deference sequence or the bud penis (VDS1), to the point where this duct reaches the vaginal opening (VDS4). Three types of imposex pathways were found for stage 1 (VDS1a, VDS1b and VDS1d), two for stage 2 (VDS2a and VDS2d) and stage 3 (VDS3a and VDS3b). Affected females were found in the three studied stations with imposex frequency ranging from 10.5 to 47.2%, VDSI from 0.1 to 0.8, FPL from 0 to 0.1 mm, RPLI from 0 to 0.9, and VDL from 0.2 to 1.3 mm. Organotins body burden ranged from 0.8 to 16 ng/g d.w. for MBT, 2.5–14.9 for DBT, and 3.7–14.4 for TBT. To our knowledge, this is the first detailed report on imposex in N. mutabilis suggests its inclusion to list of imposex-affected gastropods. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Description of imposex and butyltin burden in Nassarius mutabilis from the lagoon of Bizerta (northern Tunisia)

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074013010045
Publisher site
See Article on Publisher Site

Abstract

Imposex occurrence in the changeable nassa Nassarius (Sphaeronassa) mutabilis (Linnaeus, 1758) was confirmed in the present study. Advanced imposex stages were discovered for the first time in this nassarid starting from the initial appearance of the vas deference sequence or the bud penis (VDS1), to the point where this duct reaches the vaginal opening (VDS4). Three types of imposex pathways were found for stage 1 (VDS1a, VDS1b and VDS1d), two for stage 2 (VDS2a and VDS2d) and stage 3 (VDS3a and VDS3b). Affected females were found in the three studied stations with imposex frequency ranging from 10.5 to 47.2%, VDSI from 0.1 to 0.8, FPL from 0 to 0.1 mm, RPLI from 0 to 0.9, and VDL from 0.2 to 1.3 mm. Organotins body burden ranged from 0.8 to 16 ng/g d.w. for MBT, 2.5–14.9 for DBT, and 3.7–14.4 for TBT. To our knowledge, this is the first detailed report on imposex in N. mutabilis suggests its inclusion to list of imposex-affected gastropods.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Mar 25, 2013

References

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