We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Effects of Microplastics on the Activity of Digestive-, Antioxidative- and Immune-related Enzymes in Soiny Mullet (Liza haematocheila Temminck & Schlegel, 1845) Larvae
AI summary Read the abstract
A 14-day exposure study found that microplastics suppressed digestive and antioxidant enzyme activity in soiny mullet larvae, suggesting that microplastic pollution in estuarine nursery habitats may impair early development in this commercially important species.
Microplastics (MPs), novel pollutants in the water environment, can cause damage to fish, especially to fish larvae. However, the effects of MPs on fish in estuarine areas with high levels of MPs pollution are unknown. In this study, a 14-day exposure test was conducted to analyze the effects of MPs on soiny mullet larvae by measuring the activities of digestive enzymes, antioxidant enzymes, and immune enzymes in soiny mullet larvae after exposure to MPs of different particle sizes (0.5 μm, 0.1mg/L; 6 μm, 0.1mg/L).Results showed that MPs exposure significantly decreased the activities of pepsin (PPS), alpha-amylase (α-AMS), catalase (CAT), and superoxide dismutase (SOD), and significantly increased the activities of acid phosphatase (ACP) and alkaline phosphatase (ALP), among which the PPS, CAT, SOD, ACP, and ALP were more sensitive to exposure to small particle size MPs (0.5 μm).Overall, exposure to MPs reduced digestion, destroyed the antioxidant system, and triggered an immune response in soiny mullet larvae, especially the small particles of MPs (0.5 μm). The results provide basis for understanding the detriment of microplastic in fish.
More Papers Like This
Effect of Microplastics on the Activity of Digestive and Oxidative-Stress-Related Enzymes in Peled Whitefish (Coregonus peled Gmelin) Larvae
AI summary Read the abstract
Researchers exposed peled whitefish larvae to polystyrene microplastics and measured changes in digestive and antioxidant enzyme activity as indicators of stress. They found that microplastic exposure disrupted normal enzyme functions, suggesting impaired digestion and increased oxidative stress even at relatively low concentrations. The study provides evidence that microplastic contamination in freshwater environments may harm the development and survival of commercially valuable fish species during their most vulnerable life stages.
Microplastics alter digestive enzyme activities in the marine bivalve, Mytilus galloprovincialis
AI summary Read the abstract
Researchers incubated Mediterranean mussels (Mytilus galloprovincialis) with polystyrene and polyethylene microplastics and measured changes in digestive enzyme activity, finding significant reductions in amylase and protease activity, suggesting that microplastics impair nutrient digestion in filter-feeding bivalves.
Are Microplastics Impairing Marine Fish Larviculture?—Preliminary Results with Argyrosomus regius
AI summary Read the abstract
Meagre larvae exposed to polyethylene microplastics for 7 hours ingested particles regardless of concentration, and at the highest dose (10 mg/L) showed reduced feeding activity, altered oxidative stress markers, and neurotoxicity indicators, suggesting short-term physiological impairment.
Environmentally relevant concentrations of microplastics modulated the immune response and swimming activity, and impaired the development of marine medaka Oryzias melastigma larvae
AI summary Read the abstract
Researchers found that environmentally relevant concentrations of microplastics impaired immune responses, swimming behavior, and larval development in marine medaka fish, demonstrating that even low-level exposure poses ecological risks.
Investigation of Microplastics in Surface Water and Estuarine Mullet Mugil cephalus from 23 Estuary Areas, South China
AI summary Read the abstract
Researchers surveyed microplastic contamination in surface water and estuarine mullet from 23 estuary areas in South China, using the widely distributed fish species as a biomonitor to assess the extent of microplastic ingestion in coastal environments.
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.