Operation of the Ship
"One boiler operation was maintained during the survey, to
ensure maximum fuel-economy,
port.
exoept while entering and leaving
Speeds between stations
twelve knots,
..
eleven kmots,
...."*
..
. were as follows:
.3; second leg fifteen knots,
..
first leg
.; third leg
The ship's speed was gradually reduced
when coming on station during which time the bathythermograph
drop was made.
When the speed was one to two knote and the ship
was headed with the wind off the port bow the portscrew was
stopped and the plankton net was dropped.
A speed of about one
knot was maintained during the plankton haul.
The vessel came
to a dead stop while the water bottle casts were made.
Cruising
speed was gradually resumed following completion of the collectioner.
COLLECTION AND PREPARATION OF SAMPLES
Plankton, water and fish samples and continuous meaeurements of the activity in the surface water were taken.
These
samples and their prepsretion were the same as for the Walton
survey with the following exceptions.
Water samples were taken from the surface,
DOE ARCHIVES
25,
50,
100 and
150 meters to ms&ke certain that at least the deepest bottle would
be below the thermocline.
The plankton volumes were determined
* Quoted from letter from Commanding Officer, US& Marsh (DE 699)
to CTG 7.3, 23 September 1956.
1S