Abstract

A point-intercept survey was implemented in August 2000 to deter- mine the distribution and richness of aquatic plant species present in Waneta Lake and Lamoka Lake, NY. Myriophyllum spicatum (Eurasian watermilfoil) was the most commonly observed species in Waneta Lake (25% of entire lake, 78% of lit- toral zone) and Lamoka Lake (43% of entire lake, 77% of littoral zone). Eurasian watermilfoil biomass (24.3 g DW/m 2 ) was also significantly greater (p ≤ 0.001) in Waneta Lake than native plant biomass. Our data suggests that Eurasian watermil- foil is invading the native plant communities of Waneta Lake and Lamoka Lake, thereby displacing native plants and limiting their growth to the shallow waters of the littoral zone.

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