Rainbow trout crowded at a bar grader.

Photo By/Credit

Sherri Shoults/USFWS

Date Shot/Created
05/03/2021
Media Usage Rights/License
Public Domain
Image
Rainbow trout crowded at the bar grader. Grading happens as the smaller trout swim through the grading bars, separating from the larger fish that cannot swim through the opening.
Recreational Activity
Subject tags
Aquaculture
Fish hatcheries
Fishes