.
.
t
La Stebel
fall by Japanese long-line vessels.
It is suspected that tuna
migrate through the Christmas Island area enroute to other
fishing grounds, thns the fish*caught in these waters may enter
the world tuna market
(Shomura, 1962).
Acknowledgements
We gratefully acknowledge the assistance of many people
and are especially indebted to Mr. Jack Marr and Mr. Robert
T. B.
Iverson,
U.
S. Fish and Wildlife Service, Honolulu,
making the necessary arrangements for use of the ship;
Units of Joint Task Force Eight,
for
to the
including the U. S. Navy for
advice in establishing the cruise plans and Holmes and Narver,
Incorporated,
for providing a communications officer during
one of the surveys;
Corps,
U.
to Captain Harold W. Casey,
Veterinary
S. Air Force for valuable assistance in the labora-
tory; to Dr. Ole A. Mathisen of the Fisheries Research Institute,
Seattle, and to Dr. Roy E. Nakatani of the Hanford Atomic Products Operation Radiobiological Laboratories, for valuable
assistance in the collection of samples while aboard the Charles
H. Gilbert and in the field laboratory; and to all the members
of the Laboratory of Radiation Biology for their invaluable
assistance in the preparation and counting of the samples.