Accumulation of PBDEs and MeO-PBDEs in notothenioid fish from the South Shetland Islands, Antarctica : an interspecies comparative study

• Published in: Marine Pollution Bulletin
• Main Authors: Rios, Juan Manuel, Mammana, Sabrina B., Moreira, Eugenia, Poma, Giulia, Govindan, Malarvannan, Barrera-Oro, Esteban, Covaci, Adrian, Ciocco, Nestor F., Altamirano, Jorgelina C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2021
• Subjects: Chemistry; Biology; Antarc*; Antarctic; Antarctica; South Shetland Islands
• Online Access: https://hdl.handle.net/10067/1796630151162165141; https://repository.uantwerpen.be/docstore/d:irua:7355

Abstract: Concentrations of polybrominated diphenyl ethers (PBDEs) and methoxylated polybrominated diphenyl ethers (MeO-PBDEs); are reported in specimens of fish notothenioids Chaenocephalus aceratus (SSI), Trematomus bernacchii (ERN), and Nototheniops nudifrons (NOD) from the South Shetland Islands, Antarctica. Significant differences in the accumulation of 2 '-MeO-BDE-68 and 6-MeO-BDE-47 were detected among the analysed species. MeO-BDEs were significantly higher in SSI (11.7, 8.6, and 14.1 ng g-1 lw) than in NOD (1.63, 1.63, and 3.0 ng g-1 lw) in muscle, liver, and gill, respectively. Feeding ecology traits explain the accumulation patterns of MeOPBDEs. SSI has a higher feeding activity with a broader diet, followed by ERN, whereas NOD is a benthic/ sedentary fish with a narrower diet. The accumulation of PBDEs was neither species-, nor tissue-specific. The current study expands the knowledge concerning the accumulation of PBDEs and MeO-PBDEs in Antarctic marine fish and supports the importance of species-specificity in the accumulation of MeO-PBDEs.