11 results for Hydrilla verticillata (hydrilla)

Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Geographic Location Reference
3065 Hydrilla verticillata Commerce Experimental Field Harvestable (creel-able) largemouth bass had low condition values once hydrilla coverage was above 30%; however, smaller largemouth bass were not as adversely affected until percent coverage exceeded 50%. 10511
3066 Hydrilla verticillata Commerce Anecdotal N/A Highly transparent water is often considered desirable by the public, and large populations of submersed aquatic macrophytes, such as hydrilla, will tend to increase water clarity 33831
4080 Hydrilla verticillata Commerce Observational Field Hydrilla verticillata clogs canals preventing irrigation. Florida, US 5101
7057 Hydrilla verticillata Commerce Anecdotal N/A Florida spends roughly $20 million annually to control Hydrilla verticillata. 31413
7058 Hydrilla verticillata Commerce Anecdotal N/A Worldwide economic impacts of Hydrilla verticillata include impacts relating to infestation of rice fields, irrigation canals, fishponds and public waterways. 28029
7059 Hydrilla verticillata Commerce Anecdotal N/A Hydrilla verticillata interferes with a wide variety of commercial operations. Thick mats hinder irrigation operations by reducing flow rates by as much as 90% and impede the operation of irrigation structures. 42122
7060 Hydrilla verticillata Commerce Observational Field During 1991, Hydrilla verticillata at Lake Moultrie, South Carolina shut down the St. Stephen powerhouse operations for seven weeks resulting in $2,650,000 of expenses due to repairs, dredging, and fish loss. In addition, during this repair period, there was an estimated $2,000,000 loss in power generation for the plant. Lake Moultrie, South Carolina 28606
7061 Hydrilla verticillata Commerce Observational Field Boat marinas have been reported closed for extended periods on the Potomac River, Virginia; Lake Okeechobee, Florida; Santee Cooper Reservoirs, South Carolina; and Clear Lake, California due to Hydrilla verticillata. 28606
9234 Hydrilla verticillata Commerce Anecdotal N/A In the Kissimmee Chain of Lakes, Florida, USA, the net costs of Hydrilla verticillata research and management cost $19.5 million (2017 dollars). However, the benefits of management (neglecting research costs) was estimated to be $6.1M per year. Kissimmee Chain of Lakes, Florida, USA 42773
9235 Hydrilla verticillata Commerce Anecdotal N/A Florida state entities have invested around $250 million over the last three decades in the waters of Florida to manage Hydrilla verticillata. 42777
9239 Hydrilla verticillata Commerce Experimental Laboratory Hydrilla verticillata was a good source of Cu, Mn, Co, and Zn. Research suggests that H. verticillata might be one of several macrophyte species that might be good source of food for fish, poultry, and livestock. West Benga, India 41790

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