I need an hypothesis on krill

According to me, Krill is needed by all animals in the world so if it extinct then the food chain of the world will be adversely affected. It is power engine for animals either in aquatic or in land. So if it extincts then whole world would be short of non - vegetarian food. In short Krill is the key element of our food chain. So, It is our duty only to stop them become extinct as if they extinct then slowly whole world would become extinct.

Krill is a type of sea creature and is retaliated to lobster