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Effects of Microplastic Leachates on Phytoplankton : A Laboratory Study on Nodularia spumigena and Phaeodactylum tricornutum
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This thesis investigated the effects of chemical leachates from microplastics on two phytoplankton species, a cyanobacterium and a diatom, in controlled laboratory experiments. Researchers measured growth and physiological responses of the microalgae when exposed to water extracts from plastic materials. The study contributes to understanding the indirect toxicity of microplastics to primary producers through dissolved chemical release.
Effects of Microplastic Leachates on Phytoplankton : A Laboratory Study on Nodularia spumigena and Phaeodactylum tricornutum
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Researchers investigated the toxic effects of polyvinyl chloride (PVC) microplastics on three marine diatom species, finding that increasing PVC concentrations and exposure times disrupted photosynthetic efficiency and reduced cell density in Phaeodactylum tricornutum, Chaetoceros gracilis, and Thalassiosira sp.
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In lab tests, chemicals released from biodegradable polypropylene microplastics slowed the growth of two marine microalgae species, Chlorella sp. and Tetraselmis sp., after 96 hours, with Chlorella showing effects at lower concentrations. A third species, Navicula sp., showed no clear pattern and was not tested further.
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