Bioaccumulation of organic pollutants in Indo-Pacific humpback dolphin: A review on current knowledge and future prospects

Environmental Pollution
Edmond SanganyadoWenhua Liu

Abstract

Indo-Pacific humpback dolphin (Sousa chinensis) are chronically exposed to organic pollutants since they inhabit shallow coastal waters that are often impacted by anthropogenic activities. The aim of this review was to evaluate existing knowledge on the occurrence of organic pollutants in Indo-Pacific humpback dolphins, identify knowledge gaps, and offer recommendations for future research directions. We discussed the trends in the bioaccumulation of organic pollutants in Indo-Pacific humpback dolphins focusing on sources, physicochemical properties, and usage patterns. Furthermore, we examined factors that influence bioaccumulation such as gender, age, dietary intake and tissue-specific distribution. Studies on bioaccumulation in Indo-Pacific humpback dolphin remain scarce, despite high concentrations above 13,000 ng/g lw we previously detected for PFOS, ∑PBDE and chlorinated paraffins. The maximum concentration of organochlorines detected was 157,000 ng/g wt. Furthermore, variations in bioaccumulation were shown to be caused by factors such as usage patterns and physicochemical properties of the pollutant. However, restrictions in sampling inhibit investigations on exposure pathway and toxicity of organic pollutants in Indo-P...Continue Reading

Citations

Jun 21, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Yankui TangXiang Sun
Dec 2, 2020·The Science of the Total Environment·Daniele A MirandaVanessa Hatje
Feb 3, 2021·Marine Pollution Bulletin·Hoi Shing LoKeng Po Lai
Jul 17, 2021·Marine Pollution Bulletin·Rafael André LourençoMárcia Caruso Bícego
Aug 31, 2021·Environmental Pollution·Jiashen TianWenhua Liu

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