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SAMPLING METADATA

Sampling and Processing Summary
Zooplankton samples were obliquely sampled to 100 meters depth using a 60 cm coarse mesh (200 micrometer) Bongo net. One sample from each haul was preserved in formalin and the other size-fractionated (200-500, 500-1000, 1000-2000 and >2000 micrometer).

The 53-200 micrometer size fraction was obtained from a 10 cm fine mesh (53 micrometer) Bongo sampler attached below the coarse mesh system. Because the fine mesh Bongo system was lost at Station 61 and unfavourable weather conditions prevented the use of fine mesh vertical plankton tows (ship motion causing the net to rupture), all subsequent fine mesh samples were obtained by filtration of near-surface water (4m depth) taken from a water pump.



Sampling Gear Net Mesh Tow Method
( depth range )
# of Tow
% of all Tows
Bongo Net 53 um oblique
down-to ~100 m
49 28.8 %
Bongo Net 200 um oblique
under ~25 m
36 21.2 %
Bongo Net 200 um oblique
down-to ~100 m
49 28.8 %
Water Pump (type not specified) 53 um surface pump
"surface"
36 21.2 %
  TOTAL TOWS 170 
Sub-Collection:   SEAMAR COPEPOD
https://www.st.nmfs.noaa.gov/copepod
Web v14.1   [ 2017-Sep ]