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Guadalupe Bass

The Guadalupe bass (Micropterus treculii) is a species of black bass native to central Texas in the United States. Here are some key characteristics and information about the Guadalupe bass:

  1. Habitat:
    • Guadalupe bass are typically found in clear-flowing streams and rivers with gravel or rock substrates. They prefer cool, well-oxygenated water.
  2. Appearance:
    • Guadalupe bass are characterized by a greenish coloration on their back, fading to a lighter shade on the sides. They have a series of dark vertical bars along their sides.
  3. Size:
    • Guadalupe bass are generally smaller than largemouth bass. They typically reach lengths of 6 to 12 inches (15 to 30 cm), although larger individuals can be found.
  4. Distinctive Features:
    • Guadalupe bass have a prominent vertical band extending from their eye to the rear edge of the gill cover. This band helps distinguish them from other black bass species.
  5. Range:
    • The native range of Guadalupe bass is limited to certain river systems in central Texas, particularly the Guadalupe River and its tributaries. They are considered a Texas endemic species.
  6. Conservation Status:
    • Guadalupe bass have faced conservation challenges, including habitat degradation and competition with introduced species like smallmouth bass. Conservation efforts have been made to protect and enhance their populations.
  7. Recreational Fishing:
    • Guadalupe bass are popular among recreational anglers who appreciate the challenge of catching this native Texas species. Catch-and-release practices are often encouraged to help conserve populations.
  8. Regulations:
    • Local fishing regulations may include size limits, bag limits, and specific seasons to ensure the sustainable management of Guadalupe bass populations.


Conservation organizations and fisheries management agencies in Texas work to protect and enhance Guadalupe bass populations through habitat restoration, research, and public awareness efforts. Anglers are encouraged to practice ethical and sustainable fishing, respecting local regulations to contribute to the conservation of this unique species. 

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