Hydrodynamics and spatial separation between two clades of a copepod species complex

The purpose of this study was to explore the importance of hydrodynamics in the spatial distribution of a dominant calanoid copepod, null Eurytemora affinis , in the middle St. Lawrence Estuary. To do this, we used a 3D numerical model of the region. We successfully compared modelled trajectories to real trajectories obtained from surface drifters. Multiple trajectories were then generated to compute finite-time Lyapunov exponents (FTLEs). A...