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61,005 resultsShowing papers similar to Microplastics and behavioral changes in fish: an integrative review
ClearExposure to microplastics impairs fish's major behaviors. A novel threat to aquatic ecosystem
This review synthesises evidence on how microplastic exposure alters key behaviours in fish including feeding, reproduction, predator avoidance, and social interaction. It identifies neurological disruption, chemical co-toxicity, and gut effects as primary mechanisms, and highlights exposure to realistic environmental concentrations as an ongoing knowledge gap.
A review of the neurobehavioural, physiological, and reproductive toxicity of microplastics in fishes
This review summarizes how microplastics cause a range of harmful effects in fish, including behavioral changes, brain and immune system damage, oxidative stress, and reproductive disruption through interference with hormone signaling. These findings are relevant to human health because many of the same biological pathways affected in fish also exist in humans, and people consume fish that have accumulated microplastics.
Toxicity of microplastics in fish: A short review
This short review summarizes current knowledge on microplastic occurrence in fish, covering sources and pathways of ingestion, impacts on fish physiology and behavior, and potential strategies for monitoring and reducing contamination.
Effects of Pollution on Fish Behavior, Personality, and Cognition: Some Research Perspectives
This review examined how pollutants, including microplastics, affect fish behavior, personality, and cognitive abilities. Researchers identified that neurotoxic effects of pollutants can alter behavioral traits and cognitive function in fish, which may in turn affect their fitness and survival, and proposed new research perspectives for understanding how environmental contamination drives behavioral variation in wild fish populations.
Neurophysiological and Behavioral Effects of Micro- and Nanoplastics in Aquatic Organisms
Researchers reviewed evidence that micro- and nanoplastics in aquatic environments cross the blood-brain barrier, accumulate in neural tissues, and cause oxidative stress, neuroinflammation, and disrupted neurotransmitter signaling, with downstream effects on locomotion, feeding, predator avoidance, and social behavior across multiple aquatic species.
Do microplastics impair male dominance interactions in fish? A test of the vector hypothesis
Male fighting fish were exposed to microplastics to test whether plastic ingestion impaired dominance interactions and territorial behavior, with results showing that microplastic-exposed males displayed altered aggression and competitive behavior compared to controls. The study provides evidence that microplastic exposure can disrupt ecologically important social behaviors in fish.
Neurological effects induced by micro- and nanoplastics in fish: a systematic review and meta-analysis
This meta-analysis pooled data from 59 controlled studies and found that micro- and nanoplastics cause significant neurological effects in fish, including reduced brain antioxidant defenses and altered behavior. These findings are concerning because they suggest plastic pollution may disrupt nervous system function across species, and contaminated fish is a major part of the human diet.
Water Quality Impact on Fish Behavior: A Review From an Aquaculture Perspective
This review examines how various water quality factors, including microplastic pollution, affect fish behavior in aquaculture settings. Microplastics and other pollutants can alter fish swimming patterns, feeding behavior, stress responses, and social interactions. Understanding these behavioral changes is important for both fish welfare and food production, since stressed or contaminated fish may be lower quality for human consumption.
Meta-analysis of the effects of microplastic on fish: Insights into growth, survival, reproduction, oxidative stress, and gut microbiota diversity
A meta-analysis of 3,757 biological endpoints from 85 studies found that microplastic exposure significantly inhibits fish growth, survival, and reproduction while increasing oxidative damage, but does not significantly alter gut microbiota diversity. The severity of toxic effects depends on microplastic type, size, concentration, exposure pathway, and the fish's life stage.
Microplastic toxicity in fish: A potential review on sources, impacts, and solution
This review summarizes research on how microplastics affect fish health, covering sources of contamination, physical damage, hormonal disruption, and behavioral changes. Microplastics accumulate in fish tissues and can concentrate up the food chain, with potential toxic effects passing on to humans who eat contaminated seafood. The authors discuss possible solutions including better waste management, biodegradable alternatives, and advanced water treatment.
Toxic effects on bioaccumulation, hematological parameters, oxidative stress, immune responses and neurotoxicity in fish exposed to microplastics: A review
This review summarizes how microplastics affect fish health, covering toxic effects on blood, immune system, nervous system, and the buildup of plastics in fish tissues. Microplastics that accumulate in fish can trigger oxidative damage, weaken immune responses, and impair brain-related enzyme activity. Since fish are a major protein source for humans, understanding how microplastics harm fish health is directly relevant to the safety of our food supply.
Some Behavioural and Physiological Effects of Plastics (Polyethylene) on Fish
Researchers examined behavioral and physiological effects of polyethylene microplastics on fish, finding that plastic exposure disrupted endocrine function, altered behavior, and impaired normal development and reproduction.
Microplastics and the functional traits of fishes: A global meta‐analysis
This global meta-analysis pooled data from multiple studies to measure how microplastics affect fish. The results showed that microplastic exposure harms feeding behavior, growth, and overall health in fish, with younger fish being especially vulnerable. Since fish are a major protein source for humans, these effects could ultimately impact food security and the quality of seafood on our plates.
Microplastics as an Emerging Threat to the Freshwater Fishes: a Review
This review examines microplastics as an emerging threat to freshwater fishes, covering their sources from cosmetics and plastic debris fragmentation, routes of entry including wastewater treatment plants, and documented toxic effects on fish physiology and behavior.
A comprehensive review of the impact of microplastics on aquatic organisms: From ingestion to ecological consequences
This comprehensive review assessed the impacts of microplastics on diverse aquatic organisms—including fish, marine mammals, mollusks, crustaceans, and microorganisms—from ingestion through ecological-level consequences. The authors found that microplastics cause physical injury, oxidative stress, endocrine disruption, and behavioral changes across taxa, with downstream effects on food web structure and ecosystem function.
From particle size to brain function: a zebrafish-based review of micro/nanoplastic-induced neurobehavioral toxicity and mechanistic pathways
This review uses zebrafish as a model to examine how micro- and nanoplastics cause neurobehavioral toxicity, linking particle size to brain function disruption. Researchers summarize evidence that these plastic particles impair fish behavior and cause molecular-level damage in the nervous system. The findings highlight the growing concern that micro- and nanoplastics are emerging neurotoxicants in aquatic environments.
Effects of plastic particles on aquatic invertebrates and fish – A review
This review summarizes current knowledge on how microplastics and their chemical additives affect aquatic invertebrates and fish, covering behavioral changes, developmental problems, and immune system disruption. Researchers found that microplastics can cause oxidative stress, inflammation, neurotoxicity, and altered gene expression across a wide range of species. The study also highlights how microplastics act as carriers for other toxic substances, potentially amplifying their harmful effects.
Systematic Review of Microplastic Characterization Methods and Associated Toxicological Outcomes in Fish
This systematic review evaluated methods used to identify microplastics and their health effects in fish. The findings showed that microplastic exposure causes liver and gill damage, behavioral changes, and oxidative stress in fish, which matters for human health because contaminated fish is a common part of our diet.
Global meta‐analysis reveals diverse effects of microplastics on freshwater and marine fishes
This systematic review and meta-analysis examines the effects of microplastics on fish in both freshwater and ocean environments. The findings show that microplastics reduce feeding, impair digestion, slow growth, and weaken immune function in fish, which is concerning because contaminated fish are a major food source for people worldwide.
Potential toxicity of nanoplastics to fish and aquatic invertebrates: Current understanding, mechanistic interpretation, and meta-analysis
Nanoplastics significantly reduced survival, behavior, and reproduction of fish and aquatic invertebrates by 56%, 24%, and 36% respectively, while increasing oxidative stress by 72% and decreasing antioxidant defenses by 24%, with effects influenced by particle size, functional groups, and concentration.
Investigating the Behavioral Implications of Microplastic Exposure in Animal Species
This review analyzed 110 papers on the behavioral consequences of microplastic exposure across a range of animal species including plankton, fish, amphibians, crustaceans, pollinators, and mammals. Researchers found that microplastics disrupt feeding, metabolism, reproduction, and neurological function, with fish showing the most significant behavioral impacts and mice exhibiting the most severe physiological damage. The study emphasizes that these behavioral changes can alter ecological niches and reduce animal survival.
Ecotoxicological effects of microplastics on biota: a review
This review examines the ecological impact of microplastics on organisms across different levels of the food chain, from plankton to fish. Researchers found that microplastic exposure triggers a range of harmful effects including oxidative stress, immune disruption, reproductive problems, and altered feeding behavior. The evidence suggests that microplastics pose a widespread toxicological threat to wildlife, though more research is needed to understand the long-term population-level consequences.
Impacts of Microplastics on the Early Life Stages of Fish: Sources, Mechanisms, Ecological Consequences, and Mitigation Strategies
This review synthesized evidence on how microplastics affect the early life stages of fish, covering ingestion routes, physical and endocrine disruption mechanisms, and consequences for larval survival, growth, and development. The authors found that embryos and larvae are disproportionately vulnerable to microplastic exposure and identified biotransformation and food avoidance as priority mitigation strategies.
Effects Of Microplastics On Fish Physiology
This review examines how microplastic exposure affects fish physiology, covering accumulation patterns in different tissues, effects on organ function including liver and gill damage, antioxidant responses, and potential reproductive health consequences from both solo and combined contaminant exposures.