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The Effects of Micro & Nano Pollution on Fish Reproduction
Summary
This review summarizes how micro- and nano-sized pollutants — including microplastics — enter fish through food, respiration, and direct contact, disrupting reproductive success and causing developmental abnormalities in offspring. The cumulative harm to fish reproduction poses a long-term threat to aquatic population viability, with potential cascading effects up the food chain to humans.
The changing world and the increasing use of nanomaterials in industry have caused industrial nano wastes to enter the water and oceans in recent years. By a similar mechanism, plastic wastes that enter the waters erode over time and turn into microplastics. Fish, which encounter micro & nano pollutants (MNP) in their habitats, ingest these materials through the food chain, respiration and direct contact. Although water pollution attracts attention in the media and society as a result of mass fish deaths, disruptions in the reproductive cycles of fish exposed to MNPs and anomalies in juvenile development stages threaten the future of fish population in aquatic ecosystems. Fish that experience limitations in their ability to reproduce or produce offspring with anomalies are at risk of facing extinction within a short timeframe. In this chapter, the effects of various industrial nanomaterials and microplastics on fish reproductive systems are discussed and an awareness is tried to be created.