Imposex responses in Thaisella chocolata and Xanthochorus buxeus from Callao harbor, Peru

Seid Enrique, Angélica Guabloche, Eduardo Tuesta, Jose Iannacone, Italo Braga Castro

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Imposex responses were comparatively assessed in Thaisella chocolata and Xanthochorus buxeus, in sites previously studied regarding TBT contamination and under the influence of various levels of ship/boat activities in a coastal zone of Peru. In August 2015, at least 60 adult specimens of both T. chocolata and X. buxeus were simultaneously sampled by SCUBA diving in three subtidal sites. A total of 545 adult specimens of T. chocolata and X. buxeus were analyzed in the present study. Imposex incidence (I%) was detected in the two muricid species in the sampled site closest of Callao harbor — P1 (T. chocolata and X. buxeus = 100%) and also in the P2 (T. chocolata = 100% and X. buxeus = 81%). On the other hand, as expected, no sign of imposex was observed in organisms obtained from P3. Thaisella chocolata is likely to be the most sensitive species to imposex development, followed by X. buxeus. Thus, T. chocolata is the most suitable species to be used as a sentinel of TBT contamination due to its high sensitivity and better discrimination of levels among different sites.

Original languageEnglish
Article number100510
JournalRegional Studies in Marine Science
Volume26
DOIs
StatePublished - Feb 2019

Keywords

  • Antifouling
  • Contamination
  • Pollution
  • Sensitivity
  • Tributyltin

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