We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
RETRACTED: Developmental toxicity in zebrafish exposed to polyethylene microplastics under static and semi-static aquatic systems
AI summary Read the abstract
Researchers evaluated the developmental toxicity of polyethylene microplastics on zebrafish embryos and larvae under both static and semi-static exposure conditions. They found that even low concentrations of microplastics negatively affected hatching rates and caused morphological changes, with the type of exposure system influencing the severity of effects. Note: this paper has been retracted by the journal.
Different studies have reported the ecotoxicological effects of polyethylene microplastics (PE MPs) on aquatic organisms; however, little is known about their toxicity in the early life stages of aquatic vertebrates living in freshwater ecosystems. Thus, the aim of the current study is to evaluate the toxicity of PE MPs throughout the development of Danio rerio after their static and semi-static exposure to different concentrations of these pollutants (6.2, 12.5, 25, 50 and 100 mg/L) - models were monitored at different time-periods, namely: 24, 48, 72, 96, 120 and 144 h. Based on the collected data, small PE MP concentrations have harmful effects on D. rerio embryos and larvae; the magnitude and characteristics of these effects depend on the adopted exposure system, which can be static or semi-static. PE MPs had negative effect on embryos' hatching rate in both exposure systems. However, the early hatching observed during the exposure through the static system could explain the lower larval survival rate after egg hatching. Nevertheless, PE MPs induced significant changes in various morphometric parameters. The present study is the first to assess the addressed topic; therefore, it is recommended to carry out future investigations to broaden the knowledge about PE MP toxicity.
More Papers Like This
RETRACTED: Environmentally relevant concentrations of microplastic particles influence larval fish ecology
AI summary Read the abstract
Note: This paper has been retracted by the journal. The original study claimed that microplastic exposure at environmental levels harmed larval fish development and behavior, but the findings were later deemed unreliable. Retracted studies should not be used as evidence for microplastic health effects, though the topic of microplastic impacts on early-life fish development continues to be studied by other research groups.
Effects of pristine or contaminated polyethylene microplastics on zebrafish development
AI summary Read the abstract
Researchers examined the effects of both pristine and pollutant-contaminated polyethylene microplastics on zebrafish development through chronic exposure. The study assessed how microplastics, both alone and as carriers of adsorbed organic pollutants, affect developing fish. The findings provide new insights into how contaminated microplastics may create additional routes for toxic compounds to enter aquatic food webs.
Initial Assessment the Effects of Polyethylene Microplastics on the Growth of Zebrafish Embryos Danio rerio
AI summary Read the abstract
Exposure of zebrafish (Danio rerio) embryos to polyethylene microplastics over 96 hours increased mortality rates and caused morphological abnormalities including pericardial edema and yolk sac deformities. The study provided initial toxicological evidence of PE microplastic developmental toxicity in a standard aquatic model organism.
RETRACTED: Combined effects of a high-fat diet and polyethylene microplastic exposure induce impaired lipid metabolism and locomotor behavior in larvae and adult zebrafish
AI summary Read the abstract
Note: This paper has been retracted. It originally reported that polyethylene microplastics combined with a high-fat diet worsened fat accumulation and liver damage in zebrafish, resembling nonalcoholic fatty liver disease. While the findings suggested concerning interactions between diet and microplastic exposure, the retraction means these results should be interpreted with caution until replicated by other researchers.
Micro- and Nanoplastics Exposure and Effects on Embryonic Development and Larval Behavior of Zebrafish
AI summary Read the abstract
Researchers exposed zebrafish embryos to nanoplastics for three to five days and measured developmental and behavioral endpoints, finding that plastic accumulation in early development slowed yolk consumption and body growth on day two and increased locomotion while reducing body length by day six — supporting persistent developmental disruption from nanoplastic exposure.
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.