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Microplastics ingestion and heterotrophy in thermally stressed corals. Ingestion rate data
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This dataset reports ingestion rates of microplastics and Artemia (brine shrimp) by two thermally stressed coral species — Montipora capitata and Pocillopora damicornis — determined by dissection. The data supports research on how thermal stress affects the feeding behavior and microplastic uptake of reef-building corals.
Ingestion rates determined by dissection for number of microplastics and Artemia ingested per 200 polyps by Montipora capitata and Pocillopora damicornis. 4 separate files: micorplastics ingestion by M. capitata; microplastics ingestion by P. damicornis; Artemia ingestion by M. capitata; Artemia ingestion by P. damicornis.
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Researchers exposed two coral species to ambient and elevated temperatures and then fed them microplastics, Artemia nauplii, or both, finding that thermal stress significantly reduced feeding on prey but did not decrease microplastic ingestion. Notably, one species only ingested microplastics when live food was simultaneously present, suggesting incidental rather than selective uptake and highlighting species-level variability in microplastic risk under climate change.
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Corals exposed to microplastics at levels currently found in the ocean showed more cellular damage when also stressed by warm water temperatures. The microplastics triggered inflammation-like responses and slowed down tissue repair in the corals. This matters because coral reefs are already under severe pressure from climate change, and microplastic pollution appears to make their situation worse.
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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.