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Last modified
7/14/2009 5:02:36 PM
Creation date
5/18/2009 12:09:01 AM
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Template:
UCREFRP
UCREFRP Catalog Number
9552
Author
U.S. Fish and Wildlife Service.
Title
Management Plan for the Big-River Fishes of the Lower Colorado River Basin
USFW Year
2004.
USFW - Doc Type
amendment and supplement to the Bonytail, Humpback chub, Colorado pikeminnow, and Razorback sucker Recovery Plans.
Copyright Material
NO
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<br /> <br />3: <br />' Research and ada tive mana ement are necessa com onents of this Ian as <br />P 9 rY P P <br />' is provision for future management activities to ensure success of the restored <br />fishes within their respective habitats. <br />' 1n general, the strategies for razorback sucker and bonytail will be accomplished <br />through stocking sub-adult fish from production facilities or collected from wild <br /> populations. As adult populations are established in suitable mainstem and off- <br /> channel habitats, research and monitoring will be implemented for development <br />' of management strategies to promote self-persistence of the populations. <br /> Concurrently, isolated habitats may also provide fish for repatriation to the river <br /> or reservoirs. Fish from the mainstem may also be moved to the isolated habitats <br />' as needed for genetic and management purposes. Similar strategies are <br /> presented for reestablishing the Colorado pikeminnow in the lower basin. These <br /> strategies will not be implemented until specific Recovery Goals are established <br />' for Colorado pikeminnow for the lower basin. The AMWG is currently developing <br /> a Comprehensive Action and Management Plan for humpback chub in Grand <br />' Canyon. Once completed, that plan will be reviewed in the context of the LCRMP <br /> to determine if additional actions are necessary to meet the Recovery Goals. <br />' Due to uncertainties about funding and implementation, no initial timeline is <br />given to complete these actions for any species; however, the timelines given in <br />the Recovery Goals will be incorporated in any future management actions. <br />' Future versions of this document will be based on results of implementation of <br />the included strategies. <br />' The lower basin contains a variety of habitats that will be used to establish self- <br /> sustaining populations and genetic refugia. These include free flowing and <br /> managed rivers, reservoirs, connected and isolated backwaters, and ponds on <br />' private lands such as golf courses. The project area is divided into subunits <br /> based on physical attributes and each subunit has its own specific management <br /> strategies. The initial development of persistent adult populations will require <br />' stocking large numbers of fish. Smaller numbers would be difficult to detect in <br /> these large subunits and would therefore be outside our ability to monitor, <br /> meaning that survivorship, habitat use, and other key data parameters would go <br />' unobserved. Stocking programs will be conducted in as many subunits as <br /> feasible to maximize opportunities for detecting adult fish persistence. This may <br /> also aid in identification of habitats and river reaches where potentially beneficial <br />' management actions can be implemented. Once the best habitats are identified, <br /> <br />ii <br />7 <br /> <br />
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