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Estimation of survival rate and mortality rate from age composition
a concave catch curve based
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abundance age composition age-groups applied approximately average Baranov Beverton Beverton-Holt biomass biostatistical biostatistical rate bluegills calculated catch curve catch per unit catchability column computed decrease DeLury distribution effect equal equation equilibrium yield error estimate of survival example expression factors fishery fishing and natural fishing effort fishing mortality fishing season fitted fraction functional regression gear graph growth rate increase initial population instantaneous rate interval Lake Lake Winnipegosis lemon soles less logarithms marked fish maximum sustainable yield method Muskellunge natural logarithms natural mortality rate number of fish obtained older fish parameters period plotted population estimate procedure rate of exploitation rate of fishing rate of growth ratio recoveries regression line relationship representative Ricker salmon sample Section shown situation slope sockeye salmon statistics successive ages survival rate Table tagged total mortality rate Type unit effort unit of effort usually variability vulnerable Walford weight year-class