Produção Nacional
Cymatium parthenopeum parthenopeum (von Salis, 1793) (Mesogastropoda: Ranellidae): A New Bioindicator of Organotin Compounds Contamination?
2008; Volume: 3; Issue: 1 Linguagem: Inglês
10.5132/jbse.2008.01.010
ISSN2317-9643
AutoresMércia Barcellos da Costa, Mariana Beatriz Paz Otegui, Danielle Covre Barbiero, Mércia Barcellos da Costa,
Tópico(s)Marine Ecology and Invasive Species
ResumoThis work reports the occurrence of imposex in the mesogastropod Cymatium parthenopeum parthenopeum in the coast of Espírito Santo (Southeastern Brazil) and evaluates the possible use of this species as a bioindicator of organotins (OTs) contamination. A total of 53 adult specimens were sampled at Formosa beach nearby the Vitoria main marina, which is a critical area for this kind of contamination. The animals were analyzed using a non-destructive protocol and a sub-sample of 7 animals (6 imposexed females and 1 control male) were dissected for a more detailed observation. Imposex development was observed in 39 out of 44 sampled females. Imposexed females showed pre-penis and penis development, but a vas deferens development similar to that of the males was not observed. No sign of sterility was found. A comparison with data from other species in this area indicates that C. parthenopeum parthenopeum, although less sensitive to imposex induction, can be used as biological indicator of OTs contamination.
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