Fish Population Dynamic and Stock Assessment

2.2.4. Mathematical models

Life tables are much needed in studying populations. To construct the models, the biology of the organism is an essential prerequisite. In addition to their biology, population may grow independent of their density, show exponential increase in number and are influenced by environmental factors. The population grow upto exponential rule but slow down when approach to carrying capacity (K). The ‘r’ is the intrinsic rate of increase per individual of a population. The ‘K’ is the maximum number of individuals of a particular habitat can sustain.