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Environ Pollut ; 226: 494-503, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28442267

RESUMO

During the last years, shell alterations in gastropods have been proposed as tools to be used in monitoring programs. However, no studies were so far performed investigating the relationships among shell parameters and classical biomarkers of damage. The relationship between shell alterations (biometrics, shape and elemental composition) and biomarkers (LPO and DNA strand break) was evaluated in the limpet L. subrugosa sampled along a contamination gradient in a multi-impacted coastal zone from southeastern Brazil. Statistically significant differences were detected among sites under different pollution levels. The occurrence of shell malformations was consistent with environmental levels of several hazardous substances reported for the studied area and related to lipid peroxidation and DNA damage. In addition, considering the low mobility, wide geographic distribution, ease of collection and abundance of limpets in coastal zones, this putative tool may be a cost-effective alternative to traditional biomarkers. Thus, shell alterations in limpets seem to be good proxies for assessing biological adverse effects in multi-impacted coastal zones.


Assuntos
Exoesqueleto/anatomia & histologia , Monitoramento Ambiental/métodos , Gastrópodes/fisiologia , Poluição da Água/análise , Exoesqueleto/química , Animais , Biomarcadores/metabolismo , Brasil , Dano ao DNA , Gastrópodes/anatomia & histologia , Substâncias Perigosas , Peroxidação de Lipídeos
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