Glass eel migration simulator in the Gironde estuary

Abstract

The migration of eel elvers in the estuary is on the ground as well as using an individual-centred model. The migration simulator created is based on the coupling between a spatiotemporal discretisation of the characteristics of the environment and the individual behaviour of a population of elvers during migration. The model is mainly calibrated by qualitative comparison with abundance indices derived from daily declarations made by professional fishermen. The model provided information on migration and the influence of temperature on the transit time in the estuary.