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Last modified
7/14/2009 5:02:34 PM
Creation date
5/22/2009 4:43:58 PM
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UCREFRP
UCREFRP Catalog Number
9350
Author
Hawkins, J., T. Modde and J. Bundy.
Title
Ichthyogauna of the Little Snake River, Colorado, 1995 with Notes on Movements of Humpback Chub.
USFW Year
2001.
USFW - Doc Type
Denver.
Copyright Material
NO
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<br />16 <br /> <br />I <br />I <br />I <br />I <br />I <br />l <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />,I <br />I <br />I' <br />I <br /> <br />was located twice again by airplane in the Yampa River; on August 9 near RK 66 <br />and on September 26 near RK 57 (Table 11). This humpback chub moved a <br />distance of 32 km from its capture location in the Little Snake River to its final <br />location in the Yampa River, including 5.6 km downstream in the Little Snake River <br />to the confluence and 26 km downstream in the Yampa River. The final location of <br />this fish (RK 57) was only 2 km from the other telemetered humpback chub that <br />was at RK 59 in the Yampa River. <br /> <br />Two humpback chub were not implanted with transmitters because they <br />were in poor condition and because one was also captured too late in the season. <br />Based on length-weight relationships developed for Grand Canyon humpback chub <br />in 1990 and 1991 Oog weight = -5.324 + 3.117 log total length, R2 = 0.99) by <br />Valdez and Ryel (1995), the humpback chub that was 292-mm total length and <br />140 grams was only 61 % of expected weight for similar-sized individuals. The <br />other humpback chub that was 268-mm total length and 154 grams was 87% of <br />expected weight. In addition to being in poor condition, this fish was caught on the <br />last sampling trip and we decided not to implant it because it would not receive <br />additional ground-based monitoring. Relative weights of the two humpback chub <br />that were implanted were 99-100% of expected weight. <br /> <br />One roundtail chub was implanted with a transmitter (40.670 MHz) in the <br />Little Snake River at RK 9.5 on July 17. It was not found during a telemetry search <br />of the Little Snake River on July 26, but was found on August 9 near RK 85 in the <br />Yampa River, about 5-km upstream of the Little Snake River confluence. On <br />September 26 it was near RK 82 on the Yampa River, about 1-km upstream of the <br />Little Snake River confluence. It moved a total of about 10 km from its release <br />location in the Little Snake River. <br />
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