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Dataset for the paper in Liminology and Oceanography: Microplastic carbon turns slowly into essential biomolecules in Baltic rock pools
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This is a dataset, not a full study. It contains lab measurements, including DNA, fatty acids, and amino acids, from water-dwelling microbes and tiny animals called Daphnia, collected during a 2024 outdoor pool experiment in Finland that examined how microplastic carbon moves into living organisms.
This dataset includes 16S DNA OTU data, PLFA profiles, and carbon fatty acid and amino acid data from seston, bacterio/phytoplankton, and Daphnia in a mesocosm experiment. The experiment was conducted near natural rock pools on Furuskär island, near the Tvärminne Zoological Station (University of Helsinki), in southwest Finland (GPS: 59°49'57.4"N 23°15'51.5"E), from May to September 2024.
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This duplicate dataset entry contains nutritional composition measurements from an aquatic food web experiment examining how plastic-derived carbon compares to natural leaf litter as an energy source across trophic levels. The study provides direct evidence of how microplastic carbon is incorporated into the food web.
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Researchers exposed Daphnia magna to polystyrene microplastics for 21 days and found that fatty acid content and composition were significantly altered. The changes suggest microplastics interfere with energy allocation in this freshwater crustacean, with effects varying by particle size and concentration.
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Researchers examined how microplastics affect the microbiome of Daphnia, a keystone freshwater organism, through both field sampling and controlled laboratory experiments. Using DNA sequencing techniques, they found that microplastic exposure altered the composition of bacterial communities associated with Daphnia. The study suggests that microplastic pollution may disrupt the beneficial microbial relationships that support the health of important freshwater species.
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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.