NMFS Office of Science & Technology   |   Marine Ecosystems Division
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Sampling and Processing Summary
SAMPLING METHOD:   A Hensen-type "Kitahara" net (No. 13, ~110 um) with a mouth opening of 22.5 cm (diameter) was towed from a depth up to 150 meters to the surface. Samples were left to settle for 'several hours' before measurement. Samples were preserved in 10% formalin prior to phytoplankton analysis. A flowmeter was used to measure the volume of water strained through the net [but this value was not provided in any of the data tables].

Sampling Gear Net Mesh Tow Method
( depth range )
# of Tow
% of all Tows
Kitahara(n) Net 112 um vertical
down-to ~50 m
6 16.2 %
Kitahara(n) Net 112 um vertical
down-to ~100 m
31 83.8 %
Sub-Collection:   Tridente III COPEPOD
Web v14.1   [ 2017-Sep ]