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Christmas Trees Become Underwater Fish Havens
12 Sep
Summary
- Recycled Christmas trees are submerged to create artificial fish habitats.
- West Virginia reservoirs lack natural underwater structures for fish.
- Trees are secured with cinder blocks to form stable, complex shelters.
Discarded Christmas trees in West Virginia are finding a new purpose as underwater fish habitats. Following the holiday season, real trees collected through the state's recycling program are submerged in lakes, effectively becoming part of an artificial underwater landscape designed to support aquatic life. This initiative addresses a critical habitat shortage in many West Virginia reservoirs, which often lack the complex woody structures found in natural lakes due to pre-flooding vegetation clearance.
The process involves fisheries biologists carefully securing each tree with a cinder block and nails. This anchoring ensures the trees remain upright, with their branches creating a three-dimensional maze. These intricate structures provide essential refuges for young fish and also serve as effective ambush points for predatory fish. The submerged trees offer surfaces for aquatic organisms to colonize, further enriching the habitat and increasing its complexity.
West Virginia's Department of Natural Resources has actively deployed these recycled trees. In fiscal year 2025, staff installed 1,341 habitat structures, with 1,131 of those being recycled Christmas trees across several impoundments. These structures were placed in areas lacking sufficient habitat, contributing to a broader strategy for managing artificial reservoirs and reducing holiday waste by giving trees a beneficial second life.
