Modelling benthic invasion by the colonial gastropod Crepidula fornicataand its competition with the bivalve Pecten maximus. 1. A new 0D model for population dynamics of colony-forming species

摘要

Highlights?A novel “matching matrix” is proposed in order to simulate the age structure of animal colonies.?A 0D model is built to compute the annual modifications of this “matching matrix”, taking into account the competition for bottom space.?It simulates the invasion of a benthic area by the chain-forming gastropodCrepidula fornicataand locks on a stable chain length distribution.?The model can be adapted to simulate simultaneously non colonial species and their competition with the invasive, chain-forming species.?Invasion by the colonial gastropod lowers the abundance of the harvested bivalvePecten maximusand damps its natural limit cycle.AbstractThe north-American marine gastropodCrepidula fornicata(Linné 1758), comm