ABSTRACT
Cabomba caroliniana (Gray), commonly called fanwort, has become a serious submergent aquatic pest in lakes of northern Louisiana. It has reached harmful population levels in Black Lake, Saline Lake, and Lake Bisteneau, and it has been reported from all other major lakes in the area, including Toledo Bend Reservoir. The first major change to occur in the ecology of Black Lake is that the stream flow pattern of Red River changed as a result of a series of flood control projects upstream. The second major change in the ecology of the area, which has led to conditions in Black Lake favorable for the growth of Cabomba, is a change in farming practices within the Black Lake Bayou watershed the major stream feeding Black Lake. Five seedlings were planted in hydrosoil of each of four aquaria filled with water from Black Lake. The following treatments were made: normal water level, water barely covering seedlings and all water removed, but hydrosoil saturated.
