We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Toxicological Effect of Polyethylene Microsphere on Brachionus Plicatilis and Daphnia Magna
AI summary Read the abstract
This study examined the toxicity of polyethylene microspheres on two aquatic organisms — a marine rotifer and a freshwater crustacean — finding dose-dependent reductions in survival and reproduction. The results confirm that microplastic particles at environmentally relevant concentrations can harm the base of aquatic food chains.
Pollution of the aquatic environment by micro plastic could be having a massive impact on marine life. As far as the dimensions of the microplastics decrease, the negative effects are also increasing. In this study, the effects of 10-22 mu m diameter fluorescent polyethylene microplastics (PEMs) on Brachionus plicatilis and Daphnia magna were investigated. The acute toxicity and population growth test were conducted on Brachionus plicatilis. According to the tests LC50 value was calculated as 0.764 mg/mL (0.4-1.458, 95% confidence limits). Statistically significant differences were found in the 90 hour population growth test compared to the control. According to genotoxic evaluation on Daphnia magna with single cell gel electrophoresis (Comet), tail length, tail intensity and tail moment were increased by PEMs compared to the control. In conclusion, PEMs (10-22 mu m) have negative effects on both aquatic organisms Brachionus plicatilis and Daphnia magna.
More Papers Like This
The Effect of Polystyrene (Ps) Microplastic Exposure with Different Doses on the Growth and Survival of Rotifera (Brachionus sp.)
AI summary Read the abstract
This study tested how polystyrene microplastics at different doses affect the growth and survival of tiny aquatic organisms called rotifers. The results showed harmful effects at higher doses, demonstrating that microplastics can disrupt organisms at the base of the food chain, which can have ripple effects up to the seafood humans eat.
The Effects of Polyethylene and Polypropylene Microplastics on Daphnia dentifera
AI summary Read the abstract
Researchers examined the effects of polyethylene and polypropylene microplastics on the body size, swim speed, and clonal growth rate of the freshwater crustacean Daphnia dentifera, assessing sublethal physiological and behavioural impacts of two common plastic polymer types.
Effect of microplastics on the demography of Brachionus calyciflorus Pallas (Rotifera) over successive generations
AI summary Read the abstract
Researchers examined how microplastic exposure affects the population dynamics of a freshwater rotifer species across two successive generations. They found that microplastics reduced reproduction rates and lifespan, with effects carrying over into the second generation even when exposure was removed. The study suggests that microplastic pollution may have lasting population-level consequences for small aquatic organisms.
Assessing the toxicity of polystyrene beads and silica particles on the microconsumer Brachionus calyciflorus at different timescales
AI summary Read the abstract
Researchers assessed the toxicity of polystyrene microbeads and silica particles to the freshwater rotifer Brachionus calyciflorus at multiple timescales, finding that both particle types caused dose-dependent toxic effects that evolved differently over short-term and long-term exposure periods.
Polystyrene Nanoplastics Trigger Toxicity on Two Different Aquatic Organisms (brachionus Plicatilis, Daphnia Magna)
AI summary Read the abstract
Researchers exposed the marine rotifer Brachionus plicatilis and the freshwater crustacean Daphnia magna to 50 nm polystyrene nanoplastics, finding an LC50 of 1.22 mg/mL for the rotifer and significant genotoxic damage in Daphnia as measured by comet assay tail parameters.
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.