23 Oct 2023 --- Research from the University of Otago, New Zealand, has shown that biodegradable plastics harm fish when tossed in the ocean. Petroleum-derived microplastics impact marine life, but little is known about the impact of biodegradable alternatives, leading scientists to conduct research in the field. The study, published in Science of the Total Environment and funded by a University of Otago Research Grant, is “the first” to assess the impact of petroleum-derived plastic and biodegradable plastic on wild fish.