Lake Julian near Asheville is a man-made lake created for the Skyland steam electric generating plant. Because of the resultant high water temperature, 6,000 tilapia fish, who are accustomed to warmth, were released into the lake on an experimental basis. Female tilapia brood their eggs in their mouth while their male mate digs a nest. Each then take turns guarding the nest from other fish, such as largemouth bass, which also thrive in the lake. Thus far, the warmed water has not proven a problem for the tilapia, although several fish kills have been observed both in the summer and in the winter.