Arizona Creates Fish Habitat on Saguaro Lake

Did you know that discarded Christmas trees can be recycled to create fish habitat and provide better angling opportunities?

Arizona Game and Fish Department (AZGFD) staff and volunteers gathered at Saguaro Lake on Jan. 9 to be part of this project. The trees were provided by the City of Mesa, which allowed AZGFD to take them from a drop-off location for discarded trees. The volunteers tied cinder blocks to the trees, loaded them onto a pontoon boat, and sank them in various pre-determined locations on the lake.

Over time, reservoirs lose quality fish habitat through decomposition of the natural vegetation that was flooded, particularly where water levels fluctuate significantly. Five of the large reservoirs in central Arizona—Roosevelt, Apache, Canyon, Saguaro and Bartlett—are all more than 70 years old and can lack sufficient hiding cover for spawning and for the growth and survival of young fish. The submerged Christmas trees also provide a surface for microscopic animals to grow, which attracts bait fish and in turn the predatory fish for anglers to target.

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