Abstract:
The Equatorial Pacific Process Study (EQPAC) was conducted along 140 deg W
longitude during 1992.
Four cruises took place: February 3 - March 9, March 19 - April 15,
August 5 - September 18, and September 24 - October 21. A fifth benthic
cruise and sediment trap legs were added. During the first cruise
(TT007), 15 stations
... were occupied along 140 deg W longitude from
12 deg N latitude to 12 deg S latitude. During the second cruise
(TT008), data were collected at 8 stations along 140 deg W longitude
from 9 deg S latitude to 9 deg N latitude. During the third cruise
(TT011), data were collected at 15 stations along 140 deg W from 12 deg N
latitude to 12 deg S latitude. During the fourth cruise (TT012), data were
collected at 5 stations along 140 deg W longitude from 17 deg S
latitude to the equator.
Abundance, biovolume and biomass of cyanobacteria and eukaryotic
plankton were measured at each station in vertical profiles using the CTD
rosette water sampler. The cyanobacteria and plankton were enumerated and
sized using color image analyzed fluorescence microscopy. The following
parameters were measured:
abundance of synechococcus-type cyanobacteria
biovolume of synechococcus-type cyanobacteria
biomass of synechococcus-type cyanobacteria
abundance of phototrophic eucaryotic pico- and nanoplankton
biovolume of phototrophic eucaryotic pico- and nanoplankton
biomass of phototropic eucaryotic pico- and nanoplankton
abundance of heterotrophic eucaryotic pico- and nanoplankton
biovolume of heterotrophic eucaryotic pico- and nanoplankton
biomass of heterotrophic eucaryotic pico- and nanoplankton
The abundances are in units of cells/liter; the biovolumes are in
units of cubic micrometers; and the biomasses are in units of
micrograms of carbon per liter.
The data is public domain and can be retrieved on-line at
http://usjgofs.whoi.edu/jg/dir/jgofs/
[The information in this summary was derived from the JGOFS
World Wide Web pages.] 
