From the U.S. Fish and Wildlife Service's online digital media library.
Check http://images.fws.gov/ for higher quality version.

Metadata
Title: Channel Catfish
Alternative Title: Ictalurus punctatus
Creator: Hines, Robert W.
Source: WV-catfish-Hines2
Publisher: U.S. Fish and Wildlife Service
Contributor: NATIONAL CONSERVATION TRAINING CENTER-PUBLICATIONS AND TRAINING MATERIALS
Language: EN - ENGLISH
Rights: (public domain)
Audience: (general)
Subject: fish, artwork
Date Issued: October 21 2002