and study sites were Rongelap and Kabelle Islands.
Soils and
vegetation were resampled at previously established plots and
new plots were sampled to better delineate soil types.
vegetation map of the northern half
completed;
A
of Rongelap Island was
also data needed for completion of soil maps of
Rongelap and Kabelle Islands were obtained in cooperation with
the Trust Territory
Agriculturalist.
Newly planted coconut
groves were treated with different combinations of
fertilizers.
chemical
Invertebrates were collected at most of the is-
lands visited.
Reef fish were observed and collected primarily
at Rongelap and Kabelle Islands,
with the emphasis placed on
goatfish and organisms upon which they were observed to be
feeding.
Plankton was collected by continuous pumping at the
surface between
four-hour
eighty-nine stations in the lagoon.
plankton were made at three depths
of
collections
at three of the stations.
Bottom cores were successfully re-
covered. at seventy-four stations.
transition from
At
Kabelle
Island the
lagoon shore to island soil was studied, with
particular attention
to
the
the rooting zones of plants.
formation
of beach pavement and
Twenty~four~-hour rations were
obtained from nine adult males at Rongelap
Mr.
MTwenty-
Robert Lee,
University of Hawaii,
Island.
accompanied the group
for the purpose of making productivity measurements of sea water