What is a Sturgeon?

Sturgeon are large freshwater fish of the family Acipenseridae.

The sturgeon is a prehistoric bottom-feeding fish that lives 100 years or longer. Lake Winnebago in Wisconsin has a self sustaining sturgeon population; it is a part of a huge lake and river system that sturgeon reproduce in.
The various species in the northern hemisphere are prized because of their unlaid eggs, which are removed and made into the food delicacy called caviar.