Macrozooplankton concentrations estimated from MOCNESS tow samples, Continental Margin Western Antarctic Peninsula, GLOBEC - zoo_moc_SO

Macrozooplankton abundance and biomass are derived from MOCNESS-1
plankton tow samples collected from cruises to the Antarctic, 2001 and
2002. The general survey area includes: the continental margin to
the west of the Antarctic Peninsula extending from the northern tip of
Adelaide Island to the southern portion of Alexander Island and east
into Marguerite Bay.

The MOCNESS-1 unit has a net mouth opening of one square meter at a 45
degree tow angle, net size of 335 microns, and the ability to sample
at nine different depth intervals over the duration of the tow.
Biomass (wet weight) and abundance were determined for each depth
interval sampled principally by the technique of silhouette
digitization (Little. W.S., Copley, N.J. 2003. WHOI Silhouette
Digitizer version 1.0 User's Guide. Woods Hole Oceanographic
Institution Technical Report #2003-05, 63 pp). Samples were screened
for 32 specific categories of zooplankton organisms or groups.

Note: As of this posting (May 2004), only data for 2001 are reported.

Ships/cruises/dates:
RVIB Nathaniel B. Palmer / NBP0103 / Apr 29-May 29 2001
RVIB Nathaniel B. Palmer / NBP0104 / Jul 27-Aug 25 2001