Spatial distribution of butyltins and imposex in eastern Brazilian Amazon

Autor: Johnata Azevedo Ferreira, Marcelo Rollnic, Ítalo Braga Castro, Lílian Lund Amado, Rodrigo Moço Batista, Thais A. C. Borba, Gilberto Fillmann, Leandro Schlemmer Brasil, Danielle Regina Gomes Ribeiro-Brasil, Marcelo Petracco
Rok vydání: 2020
Předmět:
Zdroj: Marine pollution bulletin. 165
ISSN: 1879-3363
Popis: Spatial distribution of Butyltins (BTs) in surface sediments and gastropod tissues were quantified, with samples taken from an estuarine system of the Eastern Amazon, Brazil. The imposex incidence was also assessed using Thaisella coronata (Gastropoda, Mollusca). The sediment sampling was carried out at 19 sites and T. coronata in 6 of those. The highest BTs levels were detected in sediments of a Marine Extractive Reserve (27.1 ng Sn g−1) and in an urban area (19.8 ng Sn g−1). In T. coronata tissues, BTs levels ranged from I (penile papillae) was registered in gastropods from 5 out of 6 sampled sites. The results suggest that BTs concentrations are related to sampled area use, but also to the local hydrodynamics, highlighting the importance of an effective control in the use of TBT-based antifouling paints in the Eastern Amazon.
Databáze: OpenAIRE