Microplastics in the tissues of commercial semi-intensive shrimp pond-farmed Litopenaeus vannamei from the Gulf of California ecoregion

Valencia-Castaneda Gladys; Ruiz-Fernandez Ana C.; Frias-Espericueta Martin G.Rivera-Hernandez Jose R.Green-Ruiz Carlos R.Paez-Osuna Federico

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Microplastics in the tissues of commercial semi-intensive shrimp pond-farmed Litopenaeus vannamei from the Gulf of California ecoregion

机译：Microplastics in the tissues of commercial semi-intensive shrimp pond-farmed Litopenaeus vannamei from the Gulf of California ecoregion

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The omnipresence of microplastics (MPs) in marine and coastal environments has attracted attention owing to their effects on various organisms, including humans. We present the first study of MPs in the gastrointestinal tract (GT), gills (GI), and exoskeleton (EX) of the farmed whiteleg shrimp Litopenaeus vannamei from commercial aquaculture facilities in northwestern Mexico that have operated semi-intensively for the last two decades. We found that the number of MP items per tissue was 7.6 +/- 0.6 in the GT, 6.3 +/- 0.9 in the GI, and 4.3 +/- 0.9 in the EX, with an average of 18.5 +/- 1.2 MP items per shrimp (1.06 items/g, wet weight ww). MP concentrations were 261.7 +/- 84.5, 13.1 +/- 1.8, and 2.6 +/- 0.6 items/g (ww) in the GT, GI, and EX, respectively. Microplastics ranged from 30 to 2800 mu m in size (360 +/- 39 mu m) with fibers (similar to 90.8), filament-shape (similar to 93.4), and transparent (similar to 47.7) being the most common ones. Polyethylene (similar to 54.5) and polyamide (similar to 24.2) were the most commonly identified polymers, although polyesters (similar to 12.1), polystyrene (similar to 6.1), and nylon (similar to 3.0) were also found. The abundance of MPs in farmed L. vannamei may be related to their feeding habits and the availability of MP sources in aquaculture facilities.

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《Chemosphere》 |2022年第6期|134194.1-134194.9|共9页
作者
Valencia-Castaneda Gladys; Ruiz-Fernandez Ana C.; Frias-Espericueta Martin G.Rivera-Hernandez Jose R.Green-Ruiz Carlos R.Paez-Osuna Federico;
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作者单位

Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Joel Montes Camarena S-N, Mazatlan 82040, Sinaloa, Mexico;

Univ Autonoma Sinaloa, Fac Ciencias Mar, Paseo Claussen S-N, Mazatlan 82000, Sinaloa, Mexico;

Univ Politecn Sinaloa, Unidad Acad Ingn Tecnol Ambiental, Carretera Municipal Libre Mazatlan Higueras Km 3, Mazatlan 82199, Sinaloa, MexicoUniv Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Joel Montes Camarena S-N, Mazatlan 82040, Sinaloa, Mexico|El Colegio Sinaloa, Culiacan, Sinaloa, Mexico;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
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关键词
Synthetic fibers; Polyamide; Polyethylene; FTIR; Shrimp aquaculture;

Microplastics in the tissues of commercial semi-intensive shrimp pond-farmed Litopenaeus vannamei from the Gulf of California ecoregion

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