AI Article Synopsis
- Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) are harmful chemicals produced by algae and cyanobacteria in the Baltic Sea, impacting fish health.
- The study measured OH-PBDE levels and biomarkers in 84 European perch over several months, finding that exposure to OH-PBDEs correlated with changes in specific biomarkers.
- Key findings include positive correlations of EROD activity, plasma lactate, and glucose with OH-PBDE levels, while lipid percentage and liver somatic index had negative correlations, highlighting potential health risks for fish in this environment.
Article Abstract
Hydroxylated polybrominated diphenyl ethers (OH-PBDEs), naturally produced by algae and cyanobacteria in the Baltic Sea, are potent disrupters of energy metabolism as well as endocrine disruptors and neurotoxins. In this study, European perch (Perca fluviatilis) from the Baltic Sea were sampled from May until October. OH-PBDEs and ten biomarkers were measured in each individual (n = 84 over 18 sampling time points) to study potential correlations between exposure to OH-PBDEs and changes in biomarkers. Several biomarkers showed significant non-linear seasonal variation. In the perch, ethoxyresorufin-O-deethylase (EROD) activity, plasma lactate concentration, and plasma glucose concentration showed a significant positive log-linear correlation with OH-PBDEs, whereas lipid percentage and liver somatic index showed a significant negative log-linear correlation with OH-PBDEs. These results strengthen the concern that OH-PBDEs could cause negative health effects for fish in the Baltic Sea.
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| http://dx.doi.org/10.1016/j.aquatox.2021.105984 | DOI Listing |
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