Relationships Between Aquatic Macrophytes and the Chemical and Physical Composition of the Substrate in Kahle Lake, Clarion-Venango Counties, Pennsylvania

Excessive growth of Najas flexilis in Kahle Lake creates a threat to the natural aging process of the eight year old impoundment. An overwinter drawdown was performed in 1977, but was ineffective in controlling N. flexilis. The intent of this research was to investigate edaphic factors that may influence aquatic macrophyte establishment and abundance within the littoral zone of Kahle Lake.