We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Impact of Aquatic Pollution on Embryonic and Larval Development in Fish: A Comprehensive Review
AI summary Read the abstract
This review examines how aquatic pollutants—heavy metals, pesticides, and microplastics—affect the embryonic and larval development of fish, detailing mechanisms of toxicity including disrupted organ formation, hormonal interference, and altered enzyme activity. The paper frames fish as early warning indicators of contamination given their sensitivity during development.
For environmental degradation fish is considered as an early warning system, they are also the biomarkers to measure the specific existence of toxic and carcinogenic components in the environment. Aquatic pollution stemming from industrial, agricultural, and urban activities exerts a profound impact on ecosystems, notably affecting fish reproduction, development, and overall well-being, leading to significant ecological and economic repercussions. The contamination of toxic metals such as copper, zinc, and cadmium severely impact fish embryos, causing delayed hatching, disruptions in development, and heightened mortality rates. These metals disrupt physiological processes, jeopardizing embryonic survival and resulting in organogenesis defects, metabolic imbalances, and altered enzyme activity. Similarly, pesticides, particularly herbicides like Thiobencarb, persist in the environment, perturbing hormonal functions and inducing developmental, behavioural and reproductive alterations in fish, with younger stages being more susceptible than older ones. Microplastics have arisen as a persistent environmental menace, disturbing aquatic ecosystems by affecting fish larvae and embryos. Ingestion of microplastics leads to growth retardation, diminished survival rates, and developmental abnormalities primarily due to metabolic disruptions, oxidative stress, and alterations in gut microbiomes. These consequences underscore plastic pollution's significant ecological and health hazards, disrupting nutrient absorption and impairing long-term survival. Oil spills, which expose organisms to polycyclic aromatic hydrocarbons (PAHs), trigger developmental anomalies, particularly in species like Atlantic cod, resulting in malformations, anaemia, and organ edema. These pollutants notably impact fish embryonic development, causing deformities, delays in development, and increased mortality rates, consequently exacerbating ecosystem well-being. Furthermore, exposure to toxicants disrupts fish behaviour, affecting feeding habits, visual reflexes, and predator avoidance mechanisms through neurotoxic effects and sensory system disturbances. Conclusion: Aquatic pollution poses significant risks to fish health, reproduction, and survival, with widespread implications for aquatic ecosystems.
More Papers Like This
Impact of Heavy Metals and Pesticide Contamination on Aquatic Environment and Fish Health: Challenges and Bioremediation Strategies
AI summary Read the abstract
This review examines the impact of heavy metals and pesticide contamination on aquatic environments and fish health, with attention to how microplastics interact with these traditional pollutants. The authors discuss how pollution from industrialization affects fish physiology and disrupts ecosystem balance. The study highlights bioremediation approaches as sustainable strategies for addressing contaminated aquatic environments.
Impact of Heavy Metals and Pesticide Contamination on Aquatic Environment and Fish Health: Challenges and Bioremediation Strategies
AI summary Read the abstract
This review examines the impact of heavy metals and pesticide contamination on aquatic environments and fish health, including the role of microplastics as co-contaminants. The authors discuss how industrialization has increased pollutant levels in water systems, affecting fish physiology and ecosystem balance. The study highlights bioremediation strategies as promising approaches for cleaning up contaminated aquatic environments.
Water Quality and Fish Health: Interaction with Toxic Substances
AI summary Read the abstract
This review examines how various toxic substances in water, including microplastics, affect fish health through physiological, behavioral, and biochemical pathways. Researchers summarized evidence that pollutants can accumulate in fish tissues and impair their immune systems, reproduction, and organ function. The study emphasizes that declining water quality from emerging contaminants poses growing risks to aquatic ecosystems and the species that depend on them.
Impacts of Microplastics on the Early Life Stages of Fish: Sources, Mechanisms, Ecological Consequences, and Mitigation Strategies
AI summary Read the abstract
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.
Aquatic pollution and its effects on fish health
AI summary Read the abstract
Laboratory and field experiments in Bihar, India examined how plastic microbeads, pesticides, mercury, crude oil, and pharmaceuticals affect fish health, finding organ damage, reproductive failure, and elevated mortality across multiple pollutant types.
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.