~15-

to the soap and could be scraped off with a knife.

The process was

usually repeated more than once at each station.

At Station 10 the

anchor brought up several pounds of the bottom.

Samples were taken

from both the hinge of the anchor, which was considered to have been
at about surface level on the bottom, and from the flukes which were

estimated by both ship- and laboratory-personnel to have dug about
two feet into the sand of the bottom.
At the first four stations sea water for plankton was pumped from
astern of the "Aloto” by means of a high-speed, gasoline powered, firefighting pump with a capacity of about 40 gallons per minute, while at
the other six stations a more reliable, submersible, electric pump op-

erating alongside the ship gave 180 gallons per minute.

Pumping con-

weds

tinued for 30 minutes with the mouth of the net above water, so that all

pumped water went through the net,
Pumping, as here done, although more quantitative, was less

sirable than towing for two reasons.

de-

Smaller samples of plankton were

obtained, and picking up debris from the ship seemed unavoidable.
The plankton was preserved in alcohol except for the tows in August

near Kabelle Island.

Here the bucket was removed from the net and the

end of the net tied closed.

After towing, the net was washed down,

drained, untied, and the plankton scraped directly into small plastic
bags in which it was later dried at 80° C without preservative.

Because

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