미국
Zooplankton biomass (displacement volume) data collected during the NMFS Marine Mammal Survey program from Pacific Ocean from 1998-08-03 to 2006-12-05 (NCEI Accession 0071761)
Zooplankton biomass (displacement volume) data collected during the NMFS Marine Mammal Survey program from Pacific Ocean from 1998-08-03 to 2006-12-05, data were acquired from the NMFS-COPEPOD database (NODC accession 0071761)