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<br />001864 <br /> <br />e <br /> <br />e <br /> <br />basic criteria for total biomass and a target for design which can be related to maximum, <br />average and minimum water flows and .various configurations of rearing systems. The <br />general overall size and generic layout of the facility was been designed to meet these <br />initial production targets. <br /> <br />A state-of-the-art hatchery facility was developed from the conceptual modeling effort, <br />incorporating the latest technologies while considering the special needs for propagating <br />rare and endangered species. The design effort included development of a fish culture <br />model which utilized input variables such as water flow rates, production goals and site <br />conditions and determined the required number and type of rearing ponds, tanks, feed <br />rates and general size of the facility. An initial criteria was that these facilities are <br />designed to contain one-half of all brood and refugia facilities needed for the four species <br />of concern, with plans for the remaining half to be held at various State and Federal <br />facilities. <br /> <br />A layout of the facility configured for a warm well . water source and 300,000 fish <br />production level is illustrated on Sheet 1. As directed by the T AC, the method of rearing <br />is divided such that one-half of the production needs for each species is to be cultured <br />via intensive culture, with the other half being cultured via extensive culture. <br /> <br />A nutritional strategy was developed for extensive culture of augmentation stocks and <br />refugia which is designed to stimulate a natural feeding response as a means of <br />enhancing survival and ultimately genetic diversity. Accommodating this strategy requires <br />natural feed production facilities, which have been incorporated in the design. <br /> <br />Flow requirements for the intensive culture, using various water types and production <br />scenarios have been calculated by computer models based on oxygen consumption data <br />for Colorado squawfish. Tables 5 and 6 identify the maximum requirements for flow, start <br />tanks and rearing ponds to produce 300,000 of each species using warm well water. <br /> <br />The objective in the design for the broodstock and refugia portion of the facility is to <br />simulate natural fish habitat in an environment with very low loading dens' <br />as a means of reducing hatchery-induced mai . genetic integrity. <br />Holding facilities are designed to hous 100 adults of all sp CI . The brood stock <br />ponds also incorporate features to function as refugia or ese Ish. A brood building has <br />been incorporated into the design to accommodate tagging, spawning and recovery of <br />broodstock. <br /> <br />.~'~ <br /> <br />A highly integrated state-of-the-art research facility has been incorporated into the design <br />to satisfy the special requirements of the Recovery Program. Primary research needs <br />focus on genetics, fish health, and population/environment interaction. Research <br />laboratories devoted to genetics, physiology and pathology are housed together in a <br />building along with support facilities such as a library, photography laboratory, conference <br />and computer rooms. An outdoor research space is supplied with a variety of water <br /> <br />C' <br /> <br />9~ <br /> <br /> <br />-~'-.~ '. ,4;"'" <br /> <br />'; 'T." <br /> <br />0.."....,-0...;.. <br /> <br />- - <_."..:;.~~". ;"~~.,;:::'~~~~~l.:~}~~~~-- <br /> <br />'.".~,..i"".~,...: '._, <br /> <br />.~ <br />''''i- <br /> <br />:f:~~~:~b:i41~~~~j~?:t~f' <br /> <br />-- {-::~ '~.:: .. - . <br /> <br />,..,:- - ~,~,: "~ ~:-$..' . <br />