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Last modified
7/14/2009 5:02:34 PM
Creation date
5/20/2009 10:11:37 AM
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UCREFRP
UCREFRP Catalog Number
9313
Author
Burdick, B. D., J. Flair, M. Lloyd and B. Scheer.
Title
Native and Nonnative Fish Use of Two Gravel-Pit Ponds Connected to the Upper Colorado River at 29-5/8 Road Near Grand Junction, Colorado.
USFW Year
1997.
USFW - Doc Type
Project number CAP-6-GP,
Copyright Material
NO
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managing and coping with spring runoff during high-flow years along <br />riparian areas where anthropogenic activity occurs. In low-density <br />population areas, specific riverine reaches that are now constricted <br />could be targeted to be restored as terraces or side channels to serve <br />as "relief valves" and allow runoff waters to spread that would reduce <br />flooding and minimize damage to private land and structures in <br />adjacent areas. It is believed that natural lateral expansion of the <br />floodplain and river-basin management are perhaps the best methods of <br />flood control because of the growing awareness of inadequacies of <br />structural measures to control floods (Welcomme 1985). <br />3. Acquire Gravel - Pit Ponds Presently Connected to the Mai nstem Colorado <br />River. The Recovery Program should investigate opportunities to <br />modify and rehabilitate Hotspot and Pickup ponds (river mile 174.4 and <br />175.0. respectively) to enhance seasonal habitat for endangered fish <br />and eliminate perennial habitat for nonnative fishes. A portion of <br />Hotspot Pond is owned by the Colorado Division of Parks and Outdoor <br />Recreation. Mr. C. W. Van Wagner, owner of the remainder of the <br />property, should be contacted to determine if this property could be <br />acquired by or donated to the Recovery Program. Pickup Pond is <br />located directly north of the 153-acre parcel of land which was <br />acquired by the Recovery Program in 1996 to preserve habitat for <br />endangered fish and other types of wildlife. The Colorado Department <br />of Natural Resources, Division of Parks and Outdoor Recreation, will <br />assume ownership of Pickup Pond from Mesa County. The Recovery <br />Program should develop a Memorandum of Understanding with the State of <br />Colorado to use Pickup Pond in recovery activities for endangered <br />fish. Any endangered fish recovery activities will have to be <br />compatible with the Mesa County Riverfront Commission because a trail <br />easement is located on the north bank of Pickup Pond. <br />These two former gravel-pits, presently connected to the mainstem <br />Colorado River, are important floodplain habitats that are used during <br />spring runoff by adult Colorado squawfish. Presently, these ponds do <br />not drain entirely following runoff and retain water. Thus, while <br />used by endangered fish during runoff, if left contoured as the ponds <br />presently are, they will continue to provide perennial havens for <br />nonnative fishes. Recontouring and reshaping the bottom of these two <br />ponds will allow seasonal flooding and draining that will eliminate <br />perennial habitat for nonnative fishes and maintain floodplain habitat <br />that can be used during the spring and early summer for sub-adult and <br />adult Colorado squawfish. If acquisition of floodplain areas is not <br />possible, the Recovery Program should explore entering into agreements <br />with the Mesa County Riverfront Legacy Project that examines broad- <br />range management for multiple uses. <br />4., Use Deeper Depression Ponds as Grow-Out Ponds for Captive-Rearing of <br />Endangered Fishes. If practical, such ponds should be drained and the <br />bottoms sloped so that seining or trap nets could be used to <br />concentrate and harvest captive-reared fish for stocking. Grow-out <br />ponds provide a "half-way house" for captive-reared razorback sucker <br />juveniles from the hatchery-pond environment where they are reared as <br />26
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