What's in the soup? Visual characterization and polymer analysis of microplastics from an Indonesian manta ray feeding ground

被引：13

作者：

Argeswara, Janis ^{[1
,2
]}

Hendrawan, I. Gede ^{[1
]}

Dharma, I. G. B. Sila ^{[1
]}

Germanov, Elitza ^{[2
,3
,4
]}

机构：

[1] Udayana Univ, Bali, Indonesia

[2] Marine Megafauna Fdn, Truckee, CA 96161 USA

[3] Murdoch Univ, Environm & Conservat Sci, Perth, WA, Australia

[4] Murdoch Univ, Harry Butler Inst, Ctr Sustainable Aquat Ecosyst, Aquat Megafauna Res Unit, Perth, WA, Australia

来源：

MARINE POLLUTION BULLETIN | 2021年 / 168卷

关键词：

Mobula alfredi; pollution; toxicity; methodology; FTIR; marine debris; Plastic polymers; Polymer toxicity; PERSISTENT ORGANIC POLLUTANTS; PLASTIC DEBRIS; MARINE-ENVIRONMENT; RESIN PELLETS; INGESTION; FISH; SEA; VARIABILITY; DIVERSITY; CHEMICALS;

D O I：

10.1016/j.marpolbul.2021.112427

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Plastics in marine environments vary in their physical and chemical properties, influencing their risk to biota once ingested. Manta rays are large filter-feeders that ingest plastics. To assess this risk, we characterized the plastics in a critical feeding habitat off Nusa Penida, Indonesia. We examined the color and polymer composition of sampled small-sized plastics (<30 mm). Plastics were mostly secondary microplastics and transparent (46%), white/off-white (24%), and blue/green (22%). Fourier transform infrared spectroscopy of plastics grouped according to type (films, fragments, foam, or lines) and color indicated that most plastics were polyethylene (PE) or polypropylene (PP) (99%), with the remainder polystyrene and polyester. Visual characterization aligned with single polymer composition in seven out of ten groups. Although PE and PP have relatively low toxicity compared to other plastics, their composing monomers and associated pollutants and microbes are of concern to manta rays and other marine biota.

引用

页数：8

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