Water column circulation drives microplastic distribution in the Martinez-Baker channels; A large fjord ecosystem in Chilean Patagonia

被引：34

作者：

Castillo, Cristobal ^{[1
,2
,3
]}

Fernandez, Camila ^{[2
,3
,4
,5
]}

Gutierrez, Marcelo H. ^{[2
,3
]}

Aranda, Mario ^{[6
,10
]}

Urbina, Mauricio A. ^{[7
,8
]}

Yanez, Jorge ^{[9
]}

Alvarez, Angela ^{[9
]}

Pantoja-Gutierrez, Silvio ^{[2
,3
]}

机构：

[1] Univ Concepcion, Dept Oceanog, Programa Postgrad Oceanog, Concepcion, Chile

[2] Univ Concepcion, Dept Oceanog, Concepcion, Chile

[3] Univ Concepcion, Ctr Invest Oceanog COPAS Sur Austral ANID, Concepcion, Chile

[4] Banyuls Sur Mer Sorbonne Univ, Observ Oceanol, LOMIC, UMR7621, Banyuls Sur Mer, France

[5] CNRS, Paris, France

[6] Univ Concepcion, Dept Ciencia & Tecnol Alimentos, Concepcion, Chile

[7] Univ Concepcion, Dept Zool, Concepcion, Chile

[8] Univ Concepcion, Inst Milenio Oceanog IMO, Concepcion, Chile

[9] Univ Concepcion, Dept Quim Analit & Inorgan, Concepcion, Chile

[10] Pontificia Univ Catolica Chile, Dept Farm, Santiago, Chile

来源：

MARINE POLLUTION BULLETIN | 2020年 / 160卷

关键词：

Microplastic; ATR-FTIR; Patagonian fjords; Martinez-Baker estuary; MARINE-ENVIRONMENT; JORGE MONTT; POLLUTION; PLASTICS; GLACIER; SEA;

D O I：

10.1016/j.marpolbul.2020.111591

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We investigated the distribution of microplastics in the water column along a large remote estuarine system located between the Northern and Southern Patagonian Ice Fields in Chilean Patagonia, and connected with the Pacific Ocean through the Gulf of Penas. Microplastic particles were found in all samples, with abundances ranging from 0.1 to 7 particles/m(3). Polymers identified were principally acrylics, PET, and cellophane. The average abundance of microplastics in surface waters was similar along the whole estuary (0.4 +/- 0.3 particles/m(3)) with acrylics and epoxy resins being more abundant near Caleta Tortel, the only small village in the area. The observed higher abundance of microplastics in the deeper waters towards the Gulf of Penas points to intrusions of subsurface waters transporting plastic particles from the ocean into the channel system. This underlines the potential of ocean currents in transporting plastic pollution into pristine fjords and channels in Chilean Patagonia.

引用

页数：7

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