Fish-rearing pond aeration at Gavins Point National Fish Hatchery

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