Fish-rearing pond aeration at Gavins Point National Fish Hatchery

A large green tractor pulls a piece equipment to aerate a shallow pond with the sun peaking through the morning clouds and a stand of trees in the distance

Fish-rearing pond aeration at Gavins Point National Fish Hatchery

A tractor-driven aerator adds oxygen to a fish-rearing pond on a beautiful morning at Gavins Point National Fish Hatchery in Yankton, South Dakota.
Image
Photo By/Credit
Sam Stukel/USFWS
Media Usage Rights/License
Public Domain
Subject tags
Fish hatcheries
Fisheries management