Incentivized Harvest of Brown Trout on Colorado River

MARBLE CANYON, Ariz. — The National Park Service (NPS) and Arizona Game and Fish Department (AZGFD) are working with partners and seeking the public’s help in addressing the threat of brown trout in the Colorado River. Beginning Nov. 11, 2020, the National Park Service at Glen Canyon National Recreation Area will implement an Incentivized Harvest, a pilot research program, to reduce the growing population of brown trout in the Colorado River below Glen Canyon Dam.
The Incentivized Harvest will reward anglers $25 for each brown trout over 6 inches that is caught and removed from the river. The brown trout population in the Lees Ferry Reach has steadily increased since 2014. As adults, brown trout primarily feed on other fish, potentially threatening downstream native fish species. The goal of this program is to determine if an Incentivized Harvest can help manage and reduce the number of brown trout in the Colorado River between Glen Canyon Dam and the mouth of the Paria River. The initial research into the use of this tool is designed to last three to four years at which time the program will be evaluated for its effectiveness. Read more






