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<br />Squawfish Population Viability Analysis --July 1993 <br /> <br />Page 36 <br /> <br />Adult survival rate: <br />Generation Humber: <br />Humber of Adults: <br />Humber of Hew Fry: <br /> <br />500mm <br /> <br /> <br />length distribution <br /> <br />990mm <br /> <br />Adult survival rate: <br />Generation Humber: <br />Humber of Adults: <br />Humber of Hew Fry: <br /> <br />500mm <br /> <br /> <br />length distribution <br /> <br />990mm <br /> <br />.81 <br />47 <br />1025.78 <br />715545. <br /> <br />.95 <br />58 <br />6213.85 <br />1.59712e+6 <br /> <br />Figure 3.5. Two runs of the demographic projection model (see the <br />demography section, above) with different adult survival rates. <br /> <br />We will never be able to know this historic distribution, but for the sake of <br />argument assume that the mean length was 900 millimeters, 50% greater. <br />The mean weight of these fish will be 237% greater, using a third power <br />relationship between length and weight. IT gonadal weight scales with body <br />weight, the average adult in pre-disturbance days would put out more than <br />3 times as many gametes. So, all else equal, smaller fish have a lower <br />population growth rate. But the situation may be worse than the above <br />analysis indicates. <br />