Analysis of a non-linear model of populations structured by size (Q2216523)

The authors study a model of population dynamics of marine invertebrates such as barnacles, in which sessile adults and pelagic larvae are contained in a local area. The model consists of a nonlinear system of two equations, the first one models the density of the adults, whereas the second one involves larval evolution. A mild solution of the evolution problem for the adult density was studied by means of the semigroup techniques and successive approximation procedures.