Earth Science, Earth's System, ES 1: Geochemical Cycles (HS), ES 1: Materials/Energy Flow (MS), ES 4: Carbon Cycling (HS), ES 5: Life on Earth (HS)

Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic

Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic SUMMARY: In this experiment, the researchers sampled dead mesopelagic fish from the Northwest Atlantic Mid-Ocean area (between Ireland and Newfoundland). The water and the fish guts were strained for microplastics. Researchers found that 73% of the fish had microplastics in their stomach. Most of the… Continue reading Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic

Life Science, Non-NGSS Articles, S&F 2: Body Systems (HS), S&F 3: Body Systems (MS), Structure and Function

Feeding Plastic to Copepods

Adverse effects of microplastics and oxidative stress-induced MAPK/Nfr2 pathway-mediated defense mechanisms in the marine copepod Paracyclopina nana SUMMARY: Researchers fed copepods (specifically Paracyclopina nana or P. nana) three different sizes of plastic beads: 6um, 0.5um, and 0.05um. They found that the smaller the beads, the longer they stayed in the copepod's bodies and the more… Continue reading Feeding Plastic to Copepods