Krill are small, shrimp-like crustaceans that are an important part of the marine food chain. They are eaten by a variety of marine animals, including whales, seals, penguins, and fish, such as salmon.

Fish that feed on krill are often referred to as “krill fish.” These include species such as anchovies, sardines, herring, and mackerel, which are known for their high levels of omega-3 fatty acids.

Krill are a rich source of nutrients, including protein, omega-3 fatty acids, and astaxanthin, a potent antioxidant. In recent years, krill oil has become a popular dietary supplement due to its potential health benefits.

However, there is concern about the impact of krill fishing on the Antarctic ecosystem, where the majority of the world’s krill population is found. Krill play a crucial role in the food chain, and overfishing could have serious consequences for the animals that rely on them for survival. As a result, krill fishing is tightly regulated, and many companies that sell krill oil claim to use only sustainable fishing methods.

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