How does siltation of streams affect aquatic wildlife?

Siltation of streams can significantly harm aquatic wildlife by reducing water quality and altering habitats. Increased sediment can smother spawning grounds for fish and invertebrates, leading to decreased reproduction rates. It also disrupts the balance of the ecosystem by affecting light penetration, which can hinder aquatic plant growth and reduce oxygen levels, further stressing fish and other organisms. Overall, siltation diminishes biodiversity and the health of aquatic ecosystems.