How coastal upwelling influences spatial patterns of size-structured diversity of copepods off central-southern Chile (summer 2009)

► Knowledge on controlling factors of spatial patterns of copepods in the upwelling zone is provided. ► Copepod size seems a key factor to assess spatial patterns of diversity in the upwelling zone. ► Upwelling may structure spatial diversity of copepods in the mesoscale domain. ► The oxygen minimum zone dynamics influences copepod diversity in the coastal zone.