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prevent bacterial and fungal growth. After being rinsed clean, the eggs were spread one layer deep in the incubator tray. The goal of early collection efforts was to mate one ripe female with six ripe males. If one ripe female and at least six ripe males were not captured on any one given day, the fish were returned alive after a weight and measurement were taken. If a fish's sex could not be determined upon capture, it was returned alive after a weight and measurement were taken. After a couple of weeks, the goal was lowered to accomodate the smaller numbers of fish that had been captured. The new goal became to mate one ripe female with atleast four ripe males. Ripe females and males were captured 11-13 May, the females yielding at least 30,300+ eggs (Table 2.). The eggs were incubated outdoors in a Heath incubator at water temperatures ranging from 14-220C, 11-23 May (Table 3.). Fungus began to appear on the eggs on 12 May. The eggs were treated this date, and daily thereafter, with malachite green at a concentration of 2.2 ppm to retard the fungal growth. On 21 May, 2,000 eggs from the outdoor incubator were transferred to a indoor Heath incubator. Water temperatures in the indoor incubator ranged between 20-210C for the next two days. Little or no fungus appeared on the eggs held in the indoor incubator, so the eggs were not treated with malachite green. It was found that with cooler water temperatures of up to 200C, fungus developed on the eggs. At water temperatures of 200C or greater, little or no fungus appeared on the eggs (H.M. Tyus - personal communication). By 23 May, all eggs in both the indoor and outdoor incubators appeared dead, and were deposited into pond U. No fry were known to have hatched from these eggs. Meanwhile, collection efforts for adult razorback suckers had resumed after 13 May, yielding primarily ripe males. On 24 May, a single ripe female was captured at RMI 251.8 and held overnight at the Ouray NWR hatchery. The