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and Carothers 1979, summary in Platania 1990) did not report <br />razorback suckers. The often erroneously quoted account <br />(correctly attributed to personal communication to N. B. <br />Armantrout, U. S. Bureau of Land Management) of a large <br />concentration razorback suckers near Bluff, Utah, in 1976, was <br />clarified by Platania (1990). Only two adult razorback suckers <br />were seined from a small irrigation pond in 1976 near Bluff, Utah <br />(pers. comm., N. B. Armantrout, 1990, in Platania 1990). Several <br />weeks prior to that collection, an unknown source indicated that <br />100-150 non-adult razorback suckers of various sizes were <br />stranded and died when a second, adjacent pond was drained. <br />These ponds maintained a connection to the San Juan River via an <br />irrigation canal headgate. Contrary to other reports, there were <br />no records of razorback suckers taken from the mainstream at that <br />time. <br />Surveys in New Mexico (Platania and Bestgen 1988a, Platania <br />and Bestgen 1988b), and Utah (Meyer and Moretti 1988, Roberts and <br />Moretti 1989, Platania 1990), strongly suggest that razorback <br />suckers are rare in the San Juan River. A ripe male razorback <br />sucker collected in the San Juan River in April 1988 near Bluff, <br />Utah (Roberts and Moretti 1989) is the only known mainstream <br />record. <br />All other razorback sucker records from the San Juan River <br />drainage are from Lake Powell (San Juan River arm). Gustavsen <br />(pers. comm., in Minckley et al. in press) reported capture of <br />eight male razorback suckers from the San Juan River arm of Lake <br />16 <br />