Evaluation of the use of Olivella minuta (Gastropoda, Olividae) and Hastula cinerea (Gastropoda, Terebridae) as TBT sentinels for sandy coastal habitats

Autor(es)

Petracco, Marcelo ^{[1, 2]} ; Camargo, Rita Monteiro ^[1] ; Berenguel, Thayana Amorim ^[1] ; Patricio de Arruda, Noelle C. L. ^[1] ; del Matto, Lygia A. ^[1] ; Amado, Lilian Lund ^[3] ; Corbisier, Thais Navajas ^[1] ; Castro, Italo Braga ^[4] ; Turra, Alexander ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Oceanog Biol, Inst Oceanog, BR-05508120 Sao Paulo, SP - Brazil

^[2] Univ Fed Para UFPA, Programa Posgrad Ecol, Fac Oceanog, Inst Geociencias UFPA, BR-66075110 Belem, Para - Brazil

^[3] Univ Fed Para UFPA, Programa Posgrad Ecol Aquat & Pesca, Inst Ciencias Biol, BR-66075110 Belem, Para - Brazil

^[4] Univ Fed Sao Paulo UNIFESP, Dept Ciencias Mar, BR-11030400 Santos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL MONITORING AND ASSESSMENT; v. 187, n. 7 JUL 2015.
• Citações Web of Science: 13

Resumo

Tributyltin (TBT) contamination is still recorded in the environment even after its ban in antifouling paints. Since most biomonitors of TBT contamination, through imposex evaluation, are hard-bottom gastropods, the identification of soft-bottom sentinels has become useful for regions where rocky shores and coral reefs are absent. Thus, an evaluation of Olivella minuta and Hastula cinerea as monitors of TBT contamination was performed in two sandy beaches located under influence area of Sao Sebastiao harbor (Sao Paulo state, Brazil), where previous and simultaneous studies have reported environmental contamination by TBT. In addition, the imposex occurrence in H. cinerea was assessed in an area with low marine traffic (Una beach), also located in Sao Paulo State. A moderate imposex incidence in O. minuta was detected in Pernambuco (% I=9.36, RPLI=4.49 and RPLIstand=4.27) and Barequecaba (% I=2.42, RPLI=0.36 and RPLIstand=0.81) beaches, indicating TBT contamination. In contrast, more severe levels of imposex were recorded for H. cinerea in Una beach (% I=12.45) and mainly in Barequecaba beach (% I=98.92, RPLI=26.65). Our results suggest that O. minuta and H. cinerea have good potential as biomonitors for TBT based on their wide geographical distribution, common occurrence in different coastal sediment habitats, easy collection, and association with TBT-contaminated sediments. (AU)

• Processo FAPESP: 09/17585-6 - Ecologia populacional de Olivella minuta (Link, 1807) (Gastropoda, Olividae) na zona entremarés das praias do Araçá e de Barequeçaba, Litoral Norte do Estado de São Paulo
• Beneficiário: Alexander Turra
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 08/11053-0 - Produção secundária da macrofauna bentônica de praias arenosas: estudo de caso com Olivella minuta (Link, 1807) (Mollusca, Gastropoda) e análise e validação metodológica
• Beneficiário: Marcelo Petracco
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado