| Impact ID | 7064 |
| Impact Type | Recreation |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In the late 1980s, Hydrilla verticillata populations at Lake Guntersville, Alabama increased rapidly. A study examined the economic impact of aquatic plant control programs on recreational use of this lake between 1990 and 1994. Results suggest that the greatest economic value for recreation ($122 million annually) occurred when vegetation levels were 20% of the total lake area, and that revenue declined as hydrilla acreage increased. |
| Reference | 28606 |
| Cost | |
| Location | Lake Guntersville, Alabama |