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Last modified
8/11/2009 11:32:56 AM
Creation date
8/10/2009 3:21:49 PM
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UCREFRP
UCREFRP Catalog Number
7326
Author
McAda, C. W., K. Seethaler and R. S. Wydoski.
Title
Progress Report June 1, 1974 - October 31, 1975 Investigations of the Movements and Ecological Requirements of the Colorado Squawfish and Humpback Sucker in the Yampa and Upper Green Rivers.
USFW Year
1975.
USFW - Doc Type
Logan, Utah.
Copyright Material
NO
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16 <br />several ripe males easily,•,veighing around 5 lbs. Our sonic tag <br />a roach was not very successful. When we suddenly stopped catching <br />pP <br />them on July 27 and 28, we thought it appropriate to look further <br />upstream. From talking to local people, we had heard that we might <br />have some luck at finding them in Lily Park. <br />We began by setting our nets at Deerlodge at the lower end of <br />Lily Park. Our results here were not what we were after. In four <br />days we captured three squawfish, all of which were immature. Then <br />we set up nets at a site located about one mile above the bridge near <br />the upper end of Lily'Park. This brought us results which were of <br />considerably more interest. At this site we captured 13 squawfish in <br />three days"from August 6 to August 8. Not wishing to disturb them <br />further at that time, we pulled our nets. Most of these fish tivere of <br />reproductive size. One weighed 6 1/2 lbs. It is unfortunate that eve <br />a parently missed the spawning. A fisherman told us that he had caught <br />P <br />. a lar e squawfish with loose eggs about a week earlier. We found several <br />9 <br />ripe males,_but"no ripe females. ~!e did find large fish that vae suspect <br />were spent females as any males that size would probably have still <br />been ripe. <br />I was <br />We returned to Lily Park in late August to do further study. <br />interested in checking the area around the confluence of the Little <br />Snake River. L~;e found neither squawfish there, nor evidence of re- <br />It would <br />production. But the water level had fallen considerably. <br />be well to chec{~, it again around mid-summer. I wanted then to determine <br />whether the Upper Lily Park site still contained squawfish. ~Je <br />caught 2 squawfish on one overnight set on August 30. This is later <br />
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