Microplastic at nesting grounds used by the northern Gulf of Mexico loggerhead recovery unit
Microplastic at nesting grounds used by the northern Gulf of Mexico loggerhead recovery unit
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DOI：
10.1016/j.marpolbul.2018.04.001
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发表时间：
2018-06-01
影响因子：
5.8
通讯作者：
Fuentes, Mariana M. P. B.
中科院分区：
文献类型：
--
作者：
Beckwith, Valencia K.;Fuentes, Mariana M. P. B.
微塑料会影响濒危物种的主要栖息地，如海龟。它们通过运输有毒物质和改变沉积物性质影响温度和沉积物渗透性来影响环境。我们的研究确定了墨西哥湾北方Loggerhead恢复单位十个最重要的筑巢地点对微塑料的暴露。在2017年筑巢季节，在每个筑巢地点获得了沙子样本，并分析了微塑料的丰度和特征。在所有地点都发现了微塑料，平均丰度为61.08 +/-34.61件/m2，59.9%位于沙丘，海龟主要栖息地。从最西部的筑巢地到东部，观察到微塑料丰度逐渐减少。这项研究的结果表明，墨西哥湾北方筑巢地点的微塑料积累可能引起极大关注，并可能对海龟的孵化环境产生负面影响。
Microplastics can impact key habitats used by endangered species, such as marine turtles. They impact the environment by transporting toxicants and altering sediment properties affecting temperature and sediment permeability. Our study determined the exposure of the ten most important nesting sites for the Northern Gulf of Mexico Loggerhead Recovery Unit to microplastic. Sand samples were obtained at each nesting site during the 2017 nesting season and analyzed for abundance and characteristics of microplastic. Microplastic was found at all sites, with an average abundance of 61.08 +/- 34.61 pieces/m(2), and 59.9% located at the dunes, where turtles primarily nest. A gradual decrease in microplastics abundance was observed from the most western nesting ground to the east. The results from this study indicate that microplastic accumulation on nesting sites for the Northern Gulf of Mexico may be of great concern, and could negatively affect the incubating environment for marine turtles.