Fish Need to Move! Learning About Fish Migration - Pallid sturgeon

We are an ancient big-river fish that used to swim freely throughout the Missouri and Mississippi Rivers (Figure 1). Our numbers spiraled downward during the 1900s because we were overfished for our eggs, sold as a

gourmet food called caviar. Then decades of studding our rivers with dams blocked us from reaching our spawning and feeding grounds (Figure 1). Our larval fish also can’t swim; they drift with the river currents and sometimes are unable to reach feeding grounds, and most of them die.