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<br />Table of Contents <br /> <br />Executive Su mmary ..... ................ ..... ..... ......... ..... ..... ...... ..... ................ ... ........ ..... ......... 5 <br /> <br />Objectives and Rationale.. ..... ... ..... ...... ..... ..... ......... ..... ..... ........ ... ..... ... .... .... ...... ..... ...... 7 <br /> <br />Backgrou nd ....... ... ..... ...... ..... ..... ........... ........ ...... ..... ........ ... ..... ... ..... ... ........ .... .... ........ ... 8 <br /> <br />Status of humpback chub ............................................................................................8 <br /> <br />Feasibility of Establishing a Supportive Stocking Program Using Hatchery <br />Produced Fish from a Captive Broodstock...............................................................10 <br /> <br />Policy and priority considerations.............................................................................. 10 <br /> <br />Primary objectives..................................................................................................... 11 <br /> <br />Biological concerns.................................................................................................... 12 <br /> <br />Is a captive broodstock of humpback chub needed? ................................................. 16 <br /> <br />How many fish will be needed, what size fish should be collected, when, where, and <br /> <br />how? ............................................................................................... ........................... 17 <br /> <br />Identification of components necessary to develop a broodstock management plan <br />and of a suitable hatchery to hold fish. ...................................................................... 21 <br /> <br /> <br /> <br />Summary ................................................................................................................... 22 <br /> <br />Feasibility of Establishing a Supplemental Stocking Program Using Wild Caught <br /> <br />Age-O Fish.................................................................................................................... 24 <br /> <br />Objective and rationale.. ..... .............. ...... ....... ...... ...... ..... ................. ........... ...............24 <br /> <br />Biological considerations.. ..... ...... ..... '" .................................................... ..................25 <br /> <br />What size fish should be collected, how, from where, and when?............................. 25 <br /> <br />What is the best size to grow out captive fish before release? .................................. 27 <br /> <br />How many fish will need to be released into the wild to sufficiently supplement the <br />population of humpback chub in Grand Canyon? ......................................................28 <br /> <br />Where and when will fish be released back into the wild? ..;...................................... 31 <br />2 <br />