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,~ <br />,~ , <br />22 <br />also are the places we can most easily set our nets. Therefore, <br />these conclusions deserve some caution. We have turned one in the <br />main channel of the Colorado near Grand Junction by shocking. -Also, <br />in following two fish with sonic tags, we found that .they move around <br />quite a bit. <br />I plan to go into a more thorough discussion on the possible <br />causes of the population reduction of this species in a report I <br />will soon prepare for the Colorado Squawfish Recovery Team. I have <br />therefore limited this discussion to that of a general report of the <br />field study. ` <br />We no~v have some perspective on the status of adult fish. I'd like <br />to say a few words about reproduction. <br />Vanicek (1969) reports that ripe squawfish were taken approximately <br />one month after the water temperature had reached 65°F. Figure 5' <br />is a graph I have prepared from data given to us by don Toney in his <br />notes on the fish at Willow .Beach. l~here, actual spawning took place <br />about two months-after the temperature had reached 64°F. <br />Recent investigators {Vanicek and Kramer, 1969; Holden 1973) <br />have found young of the year. In spite of extensive seining and sampling <br />with a scoop shovel, >rre have been unable to find a single identifiable <br />young~of-the year squawfish. We have found only 2 juveniles of about <br />2 to 3 inches. These were on October 3 of this year below the bridge <br />at Jensen. This failure at finding greater numbers of young does not <br />leave us optimistic about the current reproductive success of this <br />species. <br />