Microplastics in spotted seal cubs (Phoca largha): Digestion after ingestion?

First record of microplastics in the endangered marine otter (Lontra felina)

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Researchers documented the first evidence of microplastic ingestion in the endangered marine otter (Lontra felina) by detecting plastic particles in fecal samples collected along the Peruvian and Chilean coasts, indicating that microplastics have entered coastal food webs reaching this apex predator.

Microplastics in Biota

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Microplastics have been detected in biota across marine, freshwater, and terrestrial ecosystems, demonstrating their ability to enter food webs at multiple trophic levels. Their omnipresence in living organisms raises concerns about bioaccumulation of both the plastic particles and the chemical additives and adsorbed pollutants they carry.

Microplastics in Biota

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Researchers summarized evidence that microplastics have infiltrated living organisms across marine, freshwater, and terrestrial ecosystems, posing a broad threat to biodiversity. Their persistence in biological tissues means they can accumulate up the food chain, ultimately reaching humans through diet.

Monitoring Plastic Ingestion in Selected Azorean Marine Organisms

The Impact of Microplastics on Filter-Feeding Megafauna

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Filter-feeding megafauna in the Mediterranean, including whale sharks and manta rays, ingest large quantities of microplastics while feeding near the surface where plastic concentrations are highest. These charismatic species serve as bioindicators of microplastic pollution and face direct physiological risk from chronic plastic ingestion and associated chemical contaminants.