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Fish and 'wildlife Service 
Technological Laboratory 
2725 Montlake Boulevard 
Seattle, Washington 
February 12, 1941. 
C. B. Carlson, Jr. Fishery Engineer. 
In view of the change in the plans for the second expedition of 
the Alaska Crab Investigation, you have been designated as "Super- 
visor of Fishing operations" and in addition will serve as fishery 
observer on the vessel "Dorothy". In these capacities you should 
be guided by the following general instructions. 
(1) Prior to the departure of the three fishing vessels from 
Seattle you are to assist me in organizing the details for the 
second expedition. This will include recommendations as to fishing 
gear requirements, supervisor of the fabrication of the gear to be 
used on the three fishing vessels, advise on the outfitting of the 
vessels under charter, recommendations regarding exploratory fishery 
operations and suggestions as to the program for the fishery 
observers. 
(2) Upon completing the preliminary work in Seattle you will take 
part in the field work in the capacities mentioned above: 
(a) As "Supervisor of Fishing operations" it will be your 
duty to make such recommendations to Mr. Christ ey, who has been 
designated as "Head of Field Party" as may be required to keep the 
activities of the three vessels coordinated and in as close ad- 
herence as is possible to the schedule of exploratory fishing out- 
lined in my instructions to vessel captains. More specifically you 
should keep in frequent communication with the "Champion" and the 
"Locks" and make such recommendations regarding fishing procedure, 
locality, etc . , as you consider essential to the aim of the 
investigation. Since I have not felt it would be advisable for me 
to make definite recommendations at this early date, as to when 
and where the various type of gear should be used, it will be your 
Awty to make such recommendations on the basis of your ooservations 
in the field. 
Because of the time schedule required to cover the 
areas to be investigated it is apparent that in many localities 
sufficient time will not be permitted for tangle net and pot fishing. 
In this connection, however, it would appear that the "Champion 
may have an opportunity to set out tangle nets in^Prince vfilliam ^ 
Sound and in Cook Inlet and definitely in Bering Sea. The "Locks 
should be able to use tangle net in conjunction with trawling in 
some of the bays around Kodiak Island. It is suggested ihat a ere 
time permits tangle nets be set both for exploratory fishing ana 
as a direct comparison with the trawls on bodies of crabs located 
by the trawls. Between six and twelve crab pots should be carrie 
