Why did people at ground mound eat sturgeon?

People at ground mounds likely ate sturgeon due to its availability and nutritional value. Sturgeon are large, rich in protein, and their roe (caviar) was also a valuable food source. Consuming sturgeon would have provided essential nutrients for communities, particularly in areas near rivers or lakes where these fish were abundant. Additionally, the practice of fishing and consuming sturgeon may have been rooted in cultural traditions and practices related to local ecology.