Changes in diet and food consumption of largemouth bass following large-scale hydrilla reduction in Lake Seminole, Georgia

  • Published source details Sammons S.M. & Maceina M.J. (2006) Changes in diet and food consumption of largemouth bass following large-scale hydrilla reduction in Lake Seminole, Georgia. Hydrobiologia, 560, 109-120.


Action: Use herbicide to control problematic plants

A before-and-after study in 2000–2002 of a lake embayment invaded by hydrilla Hydrilla verticillata in Georgia, USA (Sammons & Maceina 2006) reported that after treating the submerged vegetation with herbicide, coverage of native species increased. Statistical significance was not assessed. Before intervention, in 1997, hydrilla stands covered 76% of the embayment. Herbicide was applied from May 2000. Between August 2000 and August 2001, hydrilla coverage decreased from >70% to 22%. Between 2001 and 2002, coverage of native submerged vegetation increased from around 4% to around 30%. Methods: Fluridone herbicide was gradually released (via a drip-delivery system) into a sheltered embayment of Lake Seminole in May–November 2000–2003 (dose not reported; details of timing taken from Sammons & Maceina 2003). Coverage of submerged vegetation stands was mapped between 1997 and 2002.

Additional Reference: Sammons S.M. & Maceina M.J. (2003) Effects of a Drip-Delivery Fluridone Treatment on Largemouth Bass Movement and Population Characteristics in Lake Seminole, Georgia. Final Report, Grant F-67.

Output references
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