Naturally occurring organobromine compounds (OBCs) including polybrominated dibenzo-p-dioxins in the marine sponge Hyrtios proteus from The Bahamas

Published

August 25, 2021

Author(s)

Qiong Wu, Natalie Eisenhardt, Stephanie Shaw, Joseph Pawlik, John Kucklick, Walter Vetter

Abstract

Halogenated natural products (HNPs) were identified from organic extracts of the marine sponge Hyrtios proteus from The Bahamas (Caribbean, FAO fishing area 31) using gas chromatography with electron capture negative ion mass spectrometry (GC/ECNI-MS) and non-targeted gas chromatography with electron ionization mass spectrometry (NT-GC/EI-MS). The HNPs found have similar properties to anthropogenic persistent organic pollutants (POPs). Two ortho-methoxy brominated diphenyl ethers (MeO-BDEs) 2´-MeO-BDE 68 (BC-2) and 6-MeO-BDE 47 (BC-3) were the most abundant compounds. Fourteen other MeO-BDEs were detected along with several polybrominated dibenzo-p-dioxins (PBDDs) (1,3,7-triBDDs, 1,3,6,8-tetraBDDs and 1,3,7,9-tetraBDDs) and MeO-PBDDs. Further analysis of a higher trophic level octopus (Octopus maya) from the same FAO fishing area showed that the major HNPs detected in Hyrtios proteus were also predominant. Moreover, HNPs were more than 30-fold higher in abundance than the major POPs in the octopus, i.e., polychlorinated biphenyls (PCBs). Hence, Caribbean marine organisms, including those potentially used for food, harbor relatively high concentrations of HNPs.

Citation

Marine Pollution Bulletin

Volume

172

Pub Type

Journals

Download Paper

https://doi.org/10.1016/j.marpolbul.2021.112872

Local Download

Keywords

Sponge, natural product, dioxin, halogen, GC-MS

Citation

Wu, Q. , Eisenhardt, N. , Shaw, S. , Pawlik, J. , Kucklick, J. and Vetter, W. (2021), Naturally occurring organobromine compounds (OBCs) including polybrominated dibenzo-p-dioxins in the marine sponge Hyrtios proteus from The Bahamas, Marine Pollution Bulletin, [online], https://doi.org/10.1016/j.marpolbul.2021.112872, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=932831 (Accessed October 10, 2024)