Guadalupe Bass
Micropterus treculii
Guadalupe Bass is a Texas endemic black bass found mainly in clear, spring-fed Hill Country streams. It prefers rocky runs and pools and is known for aggressive strikes on small moving prey.

Identification points
- Dark lateral stripe with a chain of connected diamond-shaped blotches along the side
- Small mouth that does not reach past the eye, unlike larger largemouth bass
- Usually a greenish-bronze body with distinct dark vertical bars and a relatively slender black-bass profile
Habitat
Clear, moderate- to fast-flowing Hill Country streams and rivers with limestone riffles, pools, undercut banks, submerged wood, and rocky cover; most common in cool, well-oxygenated water.
Bait notes
Small crankbaits, inline spinners, topwater plugs, soft-plastic stickbaits, tubes, and craw imitations all work well. Live minnows or small crayfish can take fish when legal.
Behavior
Opportunistic ambush predator that feeds on minnows, crayfish, aquatic insects, and small fish. It often holds near current breaks and rock cover, moving into riffles and seams to feed.
Caution
This is a Texas-native species; check local regulations and conservation rules, especially where Guadalupe Bass are stocked or protected by special management. No species-specific consumption hazard is notable.
Fishing notes
Target current seams, riffles, eddies, and boulder fields with light tackle and natural or subtle retrieves. Cast upstream or across-current and let lures drift naturally; early morning and overcast periods are often best.