What happens to krill if they die in water?

When krill die in water, their bodies begin to decompose, leading to the release of organic matter and nutrients into the surrounding environment. This process can support other marine life, as bacteria and scavengers break down the remains, recycling nutrients back into the ecosystem. Additionally, the decomposition can impact local oxygen levels and contribute to the food web, benefiting various organisms that rely on detritus for sustenance. Overall, the death of krill plays a crucial role in maintaining the balance of marine ecosystems.