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Tyus, H.M. 1984. Loss of stream passage as a factor in the <br />decline of the endangered Colorado squawfish. Pages 138-144 <br />in Issues and Technology in the Management of Impacted Western <br />Wildlife. Proceedings of a National Symposium. Thorne <br />Ecological Institute Technical Publication Number 14. <br />Boulder, CO, USA. <br />Tyus, H.M. 1986. Life strategies in the evolution of the Colorado <br />squawfish (Ptychocheilus Lucius). Great Basin Naturalist <br />46:656-661. <br />11 <br />