R tool for simulation of fish population dynamics
Simple tool for fish population dynamics, written so that I have full flexibility on what I simulate. Handles generating an initial population, markovian movement between populations, mating, sex-switching, aging, and flexible mortality patterns. Assigns parentage at all breeding events to allow reconstruction of kin relationships. Also includes archiving and data-management tools.
Mating can be set to have an age at first breeding (and 'flat' fecundity per-mating at greater ages), fully age-specific fecundity per mating, or fully age- and sex-specific fecundity per mating.
Mortality can be set to bring a population down to a specific size by randomly killing individuals, to randomly kill individuals with a set probability (without setting a target population size, allowing stochastic population growth), or to randomly kill individuals with a stock-specific probability, age-specific probability, or stock-and-age-specific probability.