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Microplastic contamination in wild shrimp Litopenaeus vannamei from the Huizache-Caimanero Coastal lagoon, SE Gulf of California
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2022-07-04 , DOI: 10.1007/s00128-022-03568-6
Gladys Valencia-Castañeda 1 , Karla Ibáñez-Aguirre 1 , Uriel Arreguin Rebolledo 2 , Mariana V Capparelli 3 , Federico Páez-Osuna 1, 4
Affiliation  

We identified and characterized microplastics (MPs) in the gastrointestinal tract (GT), gills (GI), and exoskeleton (EX) of Litopenaeus vannamei in a coastal lagoon from the SE Gulf of California. The most common MPs were fibers and fragments with an average size of 403 ± 296 μm, in which the transparent and blue colors predominated. The abundance (items/g as wet weight (ww)) in the GT, GI, and EX was 114.7 ± 33.2, 13.7 ± 5.3 and 3.0 ± 0.5, respectively. The abundance of MPs per shrimp was 13.3 ± 1.1, while the abundance per individual (ww) was 0.9 ± 0.2 MPs/g. Considering the consumption of shrimp in Mexico, MP abundance, and shrimp consumption (discarding GI and EX), we estimated MP ingestion as 280 items/person/year. The results from this study can be used as background information for future MP biomonitoring in shrimp species of ecological and commercial importance.



中文翻译:

加利福尼亚湾东南部 Huizache-Caimanero 沿海泻湖野生虾南美白对虾的微塑料污染

我们鉴定并表征了南美白对虾胃肠道 (GT)、鳃 (GI) 和外骨骼 (EX) 中的微塑料 (MPs)在加利福尼亚湾东南部的沿海泻湖中。最常见的 MP 是平均尺寸为 403 ± 296 μm 的纤维和碎片,其中透明和蓝色占主导地位。GT、GI 和 EX 中的丰度(项目/g 湿重 (ww))分别为 114.7 ± 33.2、13.7 ± 5.3 和 3.0 ± 0.5。每只虾的 MPs 丰度为 13.3 ± 1.1,而每个个体 (ww) 的丰度为 0.9 ± 0.2 MPs/g。考虑到墨西哥的虾消费量、MP 丰富度和虾消费量(丢弃 GI 和 EX),我们估计 MP 摄入量为 280 件/人/年。这项研究的结果可用作未来对具有生态和商业重要性的虾种进行 MP 生物监测的背景信息。

更新日期:2022-07-04
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