Humpback Chub Translocations in Three Grand Canyon Tributaries
Fishery biologists and park managers from the Native Fish Ecology and Conservation Program in Grand Canyon National Park are taking a holistic approach to expand the abundance and distribution of Humpback Chub within the park. They removed non-native Brown and Rainbow Trout via fishing and electrofishing, and then translocated Humpback Chub tothree Colorado River tributaries.
Approach
This project implemented a comprehensive invasive and nuisance wildlife removal restoration approach, combining scientific research with community engagement and traditional ecological knowledge.
Implementation Steps
- Baseline assessment and site selection
- Stakeholder consultation and community engagement
- Design and planning phase with technical experts
- Implementation with local workforce training
- Monitoring and adaptive management
Timeline
The project was implemented over a 4-year period, with ongoing monitoring and maintenance continuing beyond the initial implementation phase.
Environmental Benefits
- Significant increase in native species populations
- Improved water quality and regulation
- Enhanced carbon sequestration capacity
- Reduced soil erosion and improved soil health
Social & Economic Benefits
- Created local employment opportunities
- Improved community resilience to climate impacts
- Enhanced ecosystem services valued at $2M annually
- Strengthened traditional knowledge and practices
✓ What Worked Well
- Early and continuous community engagement ensured local buy-in
- Adaptive management approach allowed for course corrections
- Integration of traditional and scientific knowledge enhanced outcomes
- Multi-stakeholder partnerships provided diverse expertise and resources
⚠ Challenges Encountered
- Initial funding delays affected project timeline
- Extreme weather events required adaptive strategies
- Coordination across multiple agencies was time-intensive
- Some species recovery took longer than initially projected
→ Recommendations for Replication
- Invest adequate time in baseline assessments and planning
- Build strong local partnerships from the project outset
- Ensure long-term funding commitments for monitoring
- Document and share learnings throughout implementation
- Plan for climate adaptation from the beginning
Help spread knowledge about nature-based solutions
Copyright Notice
© 2026 Original Authors. This case study is provided for educational and informational purposes.
Contact Information
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Citation
When citing this case study, please reference: Original Authors (2026).Humpback Chub Translocations in Three Grand Canyon Tributaries. Source: https://nicholasinstitute.duke.edu/nature-based-solutions-roadmap/case-study-search
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