Status of Colorado Squawfish and Razorback Sucker in the San Juan River, Colorado, New Mexico, and Utah

Abstract

growth, and provide further support for a winter breeding season in northwestern Louisiana. Dundee and Rossman (1989) reported that the probable time of hatching of sirens in Louisiana is midwinter. Courtship activity preceding a winter breeding season may explain the higher fall captures reported here. I thank L. M. Hardy for assistance and encouragement throughout the study. S. P. Ly ch provided assistance with the statistical anal ses, and A. C. Raymond prepared Fig. 1.