Advection: supply to GB
Hypotheses

•Winter and early spring cross-isobath transport of copepods is largely caused by locally and event-forced surface Ekman fluxes. •Transport paths differ between species and vary seasonally. •Interannual variability in the source and number of copepods delivered to GB in January and February will be directly related to the interannual variability in the winds over those two months. •Near-surface copepods will be deposited on GB because of the reduction in the Ekman velocity caused by the sudden deepening of the mixed layer there through tidal mixing.