Data/hora: 01/06/2024 04:53:30

Provedor de dados: | 5
País: | France
Título: | Leaching of flame-retardants from polystyrene debris: Bioaccumulation and potential effects on coral
Autores: | Aminot, Yann; Lanctôt, Chantal; Bednarz, Vanessa; Robson, William J.; Taylor, Angus; Ferrier-pagès, Christine; Metian, Marc; Tolosa, Imma.
Data: | 2020-02
Ano: | 2020
Palavras-chave: | Marine plastic; Polystyrene foam; Leachates; Hexabromocyclododecanes; Corals; Bioconcentration.
Resumo: | Marine plastic debris can act as a reservoir of chemical additives that can pose a potential threat to sensitive ecosystems such as coral reefs. A survey of foam macrodebris collected on beaches indeed revealed high concentrations of hexabromocyclododecanes (ΣHBCDD) in polystyrene (PS) samples (up to 1940 μg g−1). Results also showed that PS fragments can still leach over 150 ng g−1 d−1 of ΣHBCDD (primarily as the α-isomer) for relatively long durations, and that these additives are readily bioaccumulated and well-retained by corals. Despite significant HBCDD bioaccumulation in coral tissue, short-term exposure to HBCDD or PS leachate had no considerable effect on coral photosynthetic activity, symbiont concentration and chlorophyll content. Exposure to the PS leachate did however cause consistent polyp retraction in nubbins over the 5-day exposure. This response was not observed in animals exposed to HBCDD alone, suggesting that another constituent of the leachate stressed corals.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00606/71800/70335.pdf

DOI:10.1016/j.marpolbul.2019.110862

https://archimer.ifremer.fr/doc/00606/71800/

Editor: | Elsevier BV
Formato: | application/pdf
Fonte: | Marine Pollution Bulletin (0025-326X) (Elsevier BV), 2020-02 , Vol. 151 , P. 110862 (7p.)

Fonte:

info:eu-repo/semantics/openAccess

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