Walleye Fish: Anatomy, Habitat, and Fishing Guide #207588 (License: Personal Use)

This illustration depicts a walleye (Sander vitreus), a freshwater perciform fish native to North America, known for its olive-green dorsal coloring, white underbelly, and prominent glassy eye that enhances nocturnal hunting. Key anatomical features include a spiny first dorsal fin, forked caudal fin with dark bands, and a slightly downturned mouth lined with small, sharp teeth. The image emphasizes morphological traits used for species identification in field guides and educational resources.

Used on fishing, ecology, or biology web pages-especially in species profiles, angler education content, or conservation materials-where accurate visual identification supports user learning or decision-making (e.g., distinguishing walleye from sauger or zander).