SAMPLING METHODS SUMMARY
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Zooplankton "settled volume" was estimated for the sample after settling for 15 minutes in a graduated cylinder.   Where a sample exceed 5 ml settled volume it was split by means of a Fulsom plankton splitter.   The displacement volume was then determined on a fraction of the sample (Tranter, 1960).   All samples were preserved by the addition of 40% formaldehdye buffered with hexamine, which formed a 5% formalin solution with the sample.

SAMPLING GEAR	NET MESH	TOW METHODS ( depth range )	# of TOWS	% of all TOWS
N70V Vertical Closing Net	270 um	vertical under ~25 m	1	1.0 %
N70V Vertical Closing Net	270 um	vertical down-to ~50 m	9	9.4 %
N70V Vertical Closing Net	270 um	vertical down-to ~100 m	57	59.4 %
N70V Vertical Closing Net	270 um	vertical down-to ~250 m	7	7.3 %
N70V Vertical Closing Net	270 um	vertical down-to ~500 m	8	8.3 %
N113 (IOSN - 1m2 Indian Ocean Standard Net)	333 um	vertical down-to ~100 m	6	6.2 %
N113 (IOSN - 1m2 Indian Ocean Standard Net)	333 um	vertical down-to ~250 m	1	1.0 %
N100 (Gilchrist)	1000 um	horizontal "surface"	4	4.2 %
N100 (Gilchrist)	1000 um	oblique down-to ~100 m	3	3.1 %
		TOTAL TOWS	96

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Sub-Collection:   JOHN D. GILCHRIST

NMFS-COPEPOD http://www.st.nmfs.noaa.gov/plankton Web v7.1   [ 2008-Oct ]