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Plastic pollution in a coral reef climate refuge: Occurrence of anthropogenic debris, microplastics, and plasticizers in the Gulf of Aqaba
Science of the Total Environment ( IF 8.2 ) Pub Date : 2023-10-12 , DOI: 10.1016/j.scitotenv.2023.167791 Gal Vered 1 , Noa Shenkar 2
Science of the Total Environment ( IF 8.2 ) Pub Date : 2023-10-12 , DOI: 10.1016/j.scitotenv.2023.167791 Gal Vered 1 , Noa Shenkar 2
Affiliation
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The Gulf of Aqaba in the northern Red Sea, considered a coral reef refuge from the negative effects of climate change, is however being subjected to increasing amounts of plastic contamination. We quantified the levels of benthic plastic debris, microplastics, and plasticizers within the coral reef's surrounding seawater and sediment over time. Our results indicate that the coral reefs of the GoA have relatively lower levels of plastic pollution compared to reefs in other regions. The measured benthic debris in the Red Sea reefs was found to be 0.093 ± 0.091 item/m2 and fell within the reported levels found in other tropical coral reefs, with boating and fishing materials being the most abundant type. Deep mesophotic reefs were found to have significantly higher levels of benthic plastic debris compared to the shallower reefs. Microplastic levels in the surrounding seawater of the reef were 0.516 ± 0.317 microplastics/m3 . These concentrations in the reef's surrounding waters are comparable to the levels observed in surface waters from the central Red Sea. The target plasticizers appeared infrequently in samples, and the concentrations for the majority of them were below the level of quantification (LOQ = 14.7 ng/l for water and 14.7 ng/g for sediment). The findings from this study provide a valuable scientific basis for shaping regional policies and implementing management strategies aimed at controlling and mitigating plastic pollution. Such policies can ensure the long-term protection of the reefs in the northern Red Sea, turning them into a secure coral refuge shielded from both global and local anthropogenic stressors.
中文翻译：
珊瑚礁气候保护区的塑料污染：亚喀巴湾人为碎片、微塑料和增塑剂的出现
红海北部的亚喀巴湾被认为是免受气候变化负面影响的珊瑚礁避难所，然而，它正受到越来越多的塑料污染。我们量化了珊瑚礁周围海水和沉积物中底栖塑料碎片、微塑料和增塑剂随时间推移的水平。我们的结果表明，与其他地区的珊瑚礁相比，GoA 的珊瑚礁的塑料污染水平相对较低。在红海珊瑚礁中测得的底栖碎片为 0.093 ± 0.091 项/m2，低于其他热带珊瑚礁报告的水平，其中划船和捕鱼材料是最丰富的类型。与较浅的珊瑚礁相比，深中光层珊瑚礁的底栖塑料碎片含量明显更高。珊瑚礁周围海水中的微塑料含量为 0.516 ± 0.317 微塑料/立方米。珊瑚礁周围水域的这些浓度与在红海中部的表层水中观察到的水平相当。目标增塑剂在样品中出现的频率较低，其中大多数的浓度低于定量水平（水的LOQ = 14.7 ng/l，沉积物的LOQ = 14.7 ng/g）。本研究的结果为制定区域政策和实施旨在控制和减轻塑料污染的管理战略提供了宝贵的科学依据。这些政策可以确保对红海北部珊瑚礁的长期保护，将它们变成一个安全的珊瑚避难所，免受全球和当地人为压力的影响。
更新日期：2023-10-12
中文翻译：
珊瑚礁气候保护区的塑料污染：亚喀巴湾人为碎片、微塑料和增塑剂的出现
红海北部的亚喀巴湾被认为是免受气候变化负面影响的珊瑚礁避难所，然而，它正受到越来越多的塑料污染。我们量化了珊瑚礁周围海水和沉积物中底栖塑料碎片、微塑料和增塑剂随时间推移的水平。我们的结果表明，与其他地区的珊瑚礁相比，GoA 的珊瑚礁的塑料污染水平相对较低。在红海珊瑚礁中测得的底栖碎片为 0.093 ± 0.091 项/m2，低于其他热带珊瑚礁报告的水平，其中划船和捕鱼材料是最丰富的类型。与较浅的珊瑚礁相比，深中光层珊瑚礁的底栖塑料碎片含量明显更高。珊瑚礁周围海水中的微塑料含量为 0.516 ± 0.317 微塑料/立方米。珊瑚礁周围水域的这些浓度与在红海中部的表层水中观察到的水平相当。目标增塑剂在样品中出现的频率较低，其中大多数的浓度低于定量水平（水的LOQ = 14.7 ng/l，沉积物的LOQ = 14.7 ng/g）。本研究的结果为制定区域政策和实施旨在控制和减轻塑料污染的管理战略提供了宝贵的科学依据。这些政策可以确保对红海北部珊瑚礁的长期保护，将它们变成一个安全的珊瑚避难所，免受全球和当地人为压力的影响。
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