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Environmental microplastics disrupt swimming activity in acute exposure in Danio rerio larvae and reduce growth and reproduction success in chronic exposure in D. rerio and Oryzias melastigma

Environmental Pollution 2022 72 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Bénédicte Morin, Xavier Cousin, Florane Le Bihanic, Florane Le Bihanic, Jérôme Cachot, Bettie Cormier, Bénédicte Morin, Bettie Cormier, Bettie Cormier, Bettie Cormier, Florane Le Bihanic, Jérôme Cachot, Jérôme Cachot, Florane Le Bihanic, Bénédicte Morin, Bénédicte Morin, Christelle Clérandeau Jérôme Cachot, Florane Le Bihanic, Jérôme Cachot, Florane Le Bihanic, Bettie Cormier, Xavier Cousin, Jérôme Cachot, Florane Le Bihanic, Bettie Cormier, Marie‐Laure Bégout, Florane Le Bihanic, Jérôme Cachot, Florane Le Bihanic, Christelle Clérandeau, Christelle Clérandeau Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Christelle Clérandeau, Jérôme Cachot, Christelle Clérandeau Christelle Clérandeau Christelle Clérandeau, Florane Le Bihanic, Florane Le Bihanic, Xavier Cousin, Bettie Cormier, Christelle Clérandeau, Christelle Clérandeau, Christelle Clérandeau, Jérôme Cachot, Florane Le Bihanic, Florane Le Bihanic, Christelle Clérandeau, Christelle Clérandeau, Bettie Cormier, Bettie Cormier, Bettie Cormier, Mélanie Blanc, Mélanie Blanc, Mathieu Cabar, Florian Dubocq, Sarah Zapata, Mathieu Cabar, Christelle Clérandeau Christelle Clérandeau Jérôme Cachot, Christelle Clérandeau Christelle Clérandeau Jérôme Cachot, Xavier Cousin, Florane Le Bihanic, Florane Le Bihanic, Florane Le Bihanic, Jérôme Cachot, Mathieu Cabar, Mathieu Cabar, Mathieu Cabar, Jérôme Cachot, Mathieu Cabar, Marie‐Laure Bégout, Bettie Cormier, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Christelle Clérandeau Christelle Clérandeau, Christelle Clérandeau Bénédicte Morin, Bénédicte Morin, Marie‐Laure Bégout, Christelle Clérandeau, Christelle Clérandeau, Christelle Clérandeau Marie‐Laure Bégout, Christelle Clérandeau, Christelle Clérandeau, Bénédicte Morin, Christelle Clérandeau, Jérôme Cachot, Xavier Cousin, Jérôme Cachot, Christelle Clérandeau, Christelle Clérandeau Bénédicte Morin, Bénédicte Morin, Mélanie Blanc, Xavier Cousin, Jérôme Cachot, Marie‐Laure Bégout, Marie‐Laure Bégout, Christelle Clérandeau Xavier Cousin, Christelle Clérandeau Jérôme Cachot, Jérôme Cachot, Florian Dubocq, Florian Dubocq, Bettie Cormier, Christelle Clérandeau, Christelle Clérandeau, Marie‐Laure Bégout, Marie‐Laure Bégout, Christelle Clérandeau, Jérôme Cachot, Bettie Cormier, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Bettie Cormier, Bettie Cormier, Christelle Clérandeau Jérôme Cachot, Christelle Clérandeau Jérôme Cachot, Christelle Clérandeau Christelle Clérandeau, Florane Le Bihanic, Bénédicte Morin, Jérôme Cachot, Florian Dubocq, Bénédicte Morin, Bénédicte Morin, Florane Le Bihanic, Bénédicte Morin, Christelle Clérandeau, Marie‐Laure Bégout, Christelle Clérandeau Florane Le Bihanic, Christelle Clérandeau, Xavier Cousin, Christelle Clérandeau, Christelle Clérandeau Christelle Clérandeau Jérôme Cachot, Jérôme Cachot, Florane Le Bihanic, Christelle Clérandeau, Jérôme Cachot, Bénédicte Morin, Bénédicte Morin, Jérôme Cachot, Florane Le Bihanic, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Marie‐Laure Bégout, Xavier Cousin, Xavier Cousin, Bénédicte Morin, Bénédicte Morin, Bénédicte Morin, Bénédicte Morin, Bénédicte Morin, Bénédicte Morin, Bettie Cormier, Jérôme Cachot, Sarah Zapata, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Sarah Zapata, Sarah Zapata, Christelle Clérandeau, Jérôme Cachot, Bettie Cormier, Xavier Cousin, Christelle Clérandeau Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Sarah Zapata, Florian Dubocq, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Marie‐Laure Bégout, Jérôme Cachot, Bénédicte Morin, Bénédicte Morin, Bénédicte Morin, Florane Le Bihanic, Jérôme Cachot, Jérôme Cachot, Bénédicte Morin, Marie‐Laure Bégout, Xavier Cousin, Bénédicte Morin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Xavier Cousin, Marie‐Laure Bégout, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Jérôme Cachot, Florane Le Bihanic, Jérôme Cachot, Marie‐Laure Bégout, Xavier Cousin, Jérôme Cachot, Marie‐Laure Bégout, Christelle Clérandeau, Marie‐Laure Bégout, Marie‐Laure Bégout, Xavier Cousin, Jérôme Cachot, Xavier Cousin, Bénédicte Morin, Xavier Cousin, Jérôme Cachot, Xavier Cousin, Xavier Cousin, Xavier Cousin, Marie‐Laure Bégout, Jérôme Cachot, Christelle Clérandeau, Christelle Clérandeau Florane Le Bihanic, Bénédicte Morin, Bénédicte Morin, Jérôme Cachot, Jérôme Cachot, Bénédicte Morin, Christelle Clérandeau, Christelle Clérandeau

Summary

Researchers exposed zebrafish and marine medaka to environmental microplastics collected from Caribbean beaches and found that acute exposure disrupted swimming behavior in larvae, while chronic dietary exposure reduced growth and reproduction by up to 70%. The study suggests that environmentally relevant microplastic concentrations can cause cross-generational effects, with offspring of exposed fish showing premature mortality.

Body Systems

Nervous Reproductive

Models

Fish other Zebrafish

Study Type Environmental

Microplastics (MPs), widely present in aquatic ecosystems, can be ingested by numerous organisms, but their toxicity remains poorly understood. Toxicity of environmental MPs from 2 beaches located on the Guadeloupe archipelago, Marie Galante (MG) and Petit-Bourg (PB) located near the North Atlantic gyre, was evaluated. A first experiment consisted in exposing early life stages of zebrafish (Danio rerio) to MPs at 1 or 10 mg/L. The exposure of early life stages to particles in water induced no toxic effects except a decrease in larval swimming activity for both MPs exposures (MG or PB). Then, a second experiment was performed as a chronic feeding exposure over 4 months, using a freshwater fish species, zebrafish, and a marine fish species, marine medaka (Oryzias melastigma). Fish were fed with food supplemented with environmentally relevant concentrations (1% wet weight of MPs in food) of environmental MPs from both sites. Chronic feeding exposure led to growth alterations in both species exposed to either MG or PB MPs but were more pronounced in marine medaka. Ethoxyresorufin-O-deethylase (EROD) and acetylcholinesterase (AChE) activities were only altered for marine medaka. Reproductive outputs were modified following PB exposure with a 70 and 42% decrease for zebrafish and marine medaka, respectively. Offspring of both species (F1 generation) were reared to evaluate toxicity following parental exposure on unexposed larvae. For zebrafish offspring, it revealed premature mortality after parental MG exposure and parental PB exposure produced behavioural disruptions with hyperactivity of F1 unexposed larvae. This was not observed in marine medaka offspring. This study highlights the ecotoxicological consequences of short and long-term exposures to environmental microplastics relevant to coastal marine areas, which represent essential habitats for a wide range of aquatic organisms.

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