Guadalupe Bass Fishing Guide

The Guadalupe bass (Micropterus treculii) is Texas' official state fish and the only black bass species endemic to the state, found exclusively in the rivers of the Edwards Plateau — the Texas Hill Country. It is the smallest of the black bass species, rarely exceeding 3.5 pounds, but is a spirited fighter in the cold, clear spring-fed rivers it calls home. Introduced smallmouth bass have hybridized with Guadalupe bass throughout much of its range, threatening the genetic integrity of native populations. Conservation stocking programs using verified pure-strain Guadalupe bass are actively working to restore genetically distinct populations in rivers including the Colorado, Guadalupe, and Pedernales. Identifying pure Guadalupe bass from hybrids requires close examination of scale patterns and lateral line markings.

Guadalupe Bass is a freshwater species.

Habitat

Spring-fed streams and rivers of the Edwards Plateau in central Texas — clear, cool, fast-flowing limestone-bottomed waterways. Found in riffle runs, current seams, and below rapids; unlike most black bass, Guadalupe bass actively seek current.

Diet

Insects (particularly aquatic nymphs and surface bugs), crayfish, and small minnows. More insectivorous than other black bass — fly fishing with small streamers and dry flies is a traditional and productive method.

Fishing Techniques

• Fly fishing with small poppers and nymphs in riffles
• Small inline spinners in current seams
• Tiny soft plastics on light tackle

Best Seasons

Spring, Fall

Size & Records

Average weight: 0.5 lbs. World record: 3.71 lbs (Llano River, Texas, USA (1983)).