Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China.
Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China.
Environ Pollut. 2018 Jun;237:111-125. doi: 10.1016/j.envpol.2018.01.055. Epub 2018 Feb 23.
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-Pacific humpback dolphin. We proposed the use of biopsy sampling, predictive bioaccumulation and toxicity modeling, and monitoring other emerging contaminants such as microplastics and pharmaceuticals for future health risk assessment on this critically endangered marine mammal species.
由于栖息于常受人类活动影响的浅海沿岸水域，印太驼海豚（ Sousa chinensis ）长期受到有机污染物的影响。本综述旨在评估印太驼海豚体内有机污染物的现有知识，确定知识空白，并为未来的研究方向提供建议。我们讨论了印太驼海豚体内有机污染物的生物累积趋势，重点关注来源、物理化学性质和使用模式。此外，我们还研究了影响生物累积的因素，如性别、年龄、饮食摄入和组织特异性分布。尽管我们之前检测到 PFOS、∑PBDE 和氯化石蜡的浓度超过 13,000ng/g lw，但关于印太驼海豚生物累积的研究仍然很少。检测到的有机氯最高浓度为 157,000ng/g wt。此外，生物累积的变化是由污染物的使用模式和物理化学性质等因素引起的。然而，采样限制阻碍了对印太驼海豚体内有机污染物暴露途径和毒性的研究。我们提出了使用活检采样、预测生物累积和毒性建模，以及监测其他新兴污染物，如微塑料和药物，以对这种极度濒危的海洋哺乳动物进行未来的健康风险评估。
