How does radioactivity affect fish?

Radioactivity can negatively impact fish through various mechanisms, including bioaccumulation of radioactive isotopes in their bodies, which can lead to harmful health effects such as genetic mutations, reduced reproductive success, and increased mortality rates. Exposure to contaminated water and sediments can disrupt fish physiology and behavior, impairing their ability to grow and thrive. Additionally, radioactive contamination can affect the entire aquatic ecosystem, leading to broader ecological consequences.