Mathematical modeling of the evolutionary dynamics of plankton community

The paper proposes and studies a model of the evolutionary dynamics of plankton community. Phytoplankton is assumed to consist of two genetic groups competing for resources and differing by the trait of toxicity. Zooplankton consumes non-toxic phytoplankton due to its selective choice of food. The evolutionary scenario of the development of two different phytoplankton genotypes is shown to depend significantly on competitive intensity between them.