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First evidence of microplastics ingestion in benthic amphipods from Svalbard
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Researchers provided the first evidence of microplastic ingestion by benthic amphipods (Gammarus setosus) from Svalbard in natural conditions, identifying plastic particles via Nile Red staining and micro FT-IR spectroscopy and noting potential for trophic transfer in Arctic food webs.
The present paper provides the first record of ingestion of microplastics in natural context by Gammarus setosus from Svalbard Archipelago. The plastic particles were identified both by Nile Red staining and Micro FT-IR spectroscopy. The species studied ingests microplastic particles in natural conditions if present in its habitat, probably mistaking them as food. The microplastic particles ingested may be available for uptake to predators that consume this Arctic amphipod, producing consequences to the food web.
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Researchers investigated Arctic amphipods as bioindicators of plastic pollution by simultaneously identifying and quantifying small microplastics, plastic additives, and other microlitter components below 100 micrometers in body tissues, focusing on the size fractions most likely to enter the trophic web.
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Researchers examined small microplastics (under 100 µm) and other microlitter components in Arctic amphipods, addressing the relatively understudied size fraction of microplastic contamination in marine invertebrates from polar regions. The study characterized particle types, sizes, and abundances found within these organisms to better understand contamination pathways in Arctic food webs.
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Researchers measured microlitter concentrations in arctic marine sediments and biota at Svalbard and Greenland, finding higher concentrations and greater diversity of plastic types near human settlements and sites of abandoned fishing gear. Laboratory experiments on an arctic amphipod showed physiological effects — including altered feeding rates and respiration — only at concentrations much higher than those currently found in the field.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.