You searched for: “bathyplankton
1. Planktonic organisms that undergo diurnal vertical migration, moving up towards the surface at dusk and down away from the surface at dawn.
2. Plankton that live at a depth below the mesoplankton zone.
3. The plankton in the greater depths of the oceans or seas; especially, of the abyssal zones.
This entry is located in the following units: batho-, bathy- (page 3) plankto-, plankt-, -plankton (page 1)