Can a nuclear disaster kill sea life?

Yes, a nuclear disaster can significantly harm sea life. The release of radioactive materials into oceans can lead to contamination of water, sediment, and marine organisms, causing direct harm through radiation exposure and indirect effects through bioaccumulation in the food chain. This can result in mutations, reproductive issues, and death among marine species, disrupting entire ecosystems. The long-term ecological impacts can persist for years, affecting biodiversity and the health of marine environments.