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1 <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br />1 <br /> <br />1 <br />1 <br />`~~ <br />u <br /> <br /> <br /> <br /> <br /> <br />Model Description/Documentation <br />The general model consists of 14 geomorphic units: 5 for the Yampa subpopulation <br />(upper Green River arm}, 4 for the lower Green River subpopulation, and 5 in the <br />Colorado River arm. Specific spawning areas are defined by setting reproductive <br />output to some number greater than zero at each river segment. This general model <br />can be parameterized for each species independently. The model allows for age- <br />specific mortality inputs which includs drifting mortality and mortality associated with <br />transition from eggs to the larval stage, larvae to YOY, YOY to 1-yr, 1 to 2 yr, 2 to 3-yr, <br />and subadult to adult transition mortality. <br />population growth equation dynamics. While biologically, the carrying capacity <br />Carrying capacities are entirely unknown quantities to date, yet are essential for logistic <br />represents the amount of biomass a particular area can sustain, population models <br />depend on a tarring capacity value to set the maximum number of individuals of a <br />particular size or age class than can be reached. To estimate carrying capacities for <br />each geomorphic section, we initially ranked each unit based entirely on the expertise <br />of the biologists present at the workshops. These numbers were then transformed into <br />`total numbers offish units' by asking the participants to estimate the maximum <br />potential densities for each section. The carrying capacity parameter limits how many <br />fish of each age class can persist within a geomorphic reach. For example, if the <br />carrying capacity for a section were estimated to be 10, that unit could contain 10 <br />6 <br />1 <br />