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Microplastic pollution in seawater and marine organisms across the Tropical Eastern Pacific and Galápagos
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Researchers sampled water and seafood across 453,000 square kilometers of the Tropical Eastern Pacific and Galápagos Islands, finding microplastics in 100% of water samples and in every species of fish, squid, and shrimp collected. This confirms that microplastic contamination is pervasive even in remote ocean regions, raising concerns for both marine ecosystems and human food safety.
Detection of plastic debris degrading into micro particles across all oceanic environments and inside of marine organisms is no longer surprising news. Microplastic contamination now appears as one of the world's environmental main concerns. To determine the levels of microplastic pollution at sea, water samples were collected across a 4000 km-trajectory in the Tropical Eastern Pacific and the Galápagos archipelago, covering an area of 453,000 square kilometres. Furthermore, 240 specimens of 16 different species of fish, squid, and shrimp, all of human consumption, were collected along the continental coast. Microplastic particles were found in 100% of the water samples and marine organisms. Microplastic particles ranging from 150 to 500 µm in size were the most predominant. This is one of the first reports simultaneously detecting and quantifying microplastic particles abundance and their impact on marine organisms of this region.
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Microplastic pollution in seawater and marine organisms across the Tropical Eastern Pacific and Galápagos
AI summary Read the abstract
Researchers collected water samples across a 4,000 km Pacific Ocean trajectory and found microplastics throughout, along with microplastics in fish, squid, and shrimp caught for human consumption along the coast. The study confirms widespread plastic contamination across the Tropical Eastern Pacific, including in seafood species eaten by humans.
Environmental implications of microplastic pollution in the Northwestern Pacific Ocean
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Researchers assessed microplastic concentrations, distribution, and characteristics across the Northwestern Pacific Ocean, finding widespread contamination with significant spatial variation and identifying environmental implications for marine ecosystems in this understudied region.
Plastic contamination of a Galapagos Island (Ecuador) and the relative risks to native marine species
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Researchers conducted a comprehensive survey of plastic contamination across the marine ecosystem of a Galapagos island — covering beaches, water, sediment, and invertebrates — and found widespread contamination including in native species, identifying dominant sources and risk levels for key marine animals.
Plastic contamination of the Galapagos marine food web and the relative risks to native species
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Researchers investigated plastic contamination across the marine food web of the Galapagos Islands and conducted a risk assessment to identify the most vulnerable species. They found plastic contamination in seawater, beach sediments, and marine organisms, with risk scores varying substantially by species feeding ecology and habitat. The study provides a framework for prioritizing conservation responses in a globally significant marine biodiversity hotspot.
Darwin's paradise contaminated by marine debris. Understanding their sources and accumulation dynamics.☆
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Researchers documented marine debris contamination across the Galapagos Islands, finding microplastics present even in these remote pristine environments, with oceanographic currents and local sources both contributing to accumulation patterns across beach sediments.
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.