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