- 4 5 - 



This program will be carried out by personnel of the Bureau's Biological 

 Laboratory, Honolulu, aboard the ANTON BRUUN. On cruises 2 and 5, a party 

 of 8 fishermen and 3 scientists will be embarked to engage in long- line 

 fishing as follows: 



a. On each cruise, fish 60 baskets of gear at each station. 

 Occupy l6 stations along each of two meridians; 13 of the 

 stations to be at 5° latitude intervals and remaining 3 

 stations to be occupied in areas of high abundance. 



b. Data and biological samples to be collected, 

 fl) Catch (by species) and effort. 



(2) Length and/or weight of each fish, 



(3) Sex and general state of maturation, 

 (k) Preserve stomachs in 10 percent formalin, 

 '5) Preserve ovaries in 10 percent formalin. 



(6) Preserve blood samples for seriological studies, 



(7) Preserve selected whole specimens for taxonomic studies. 



I 



Bottom trawling to study the distribution and relative abundance of demersal 

 species in relation to the topography and nature of the bottom, will be con- 

 ducted on cruises land h } using a single- warp shrimp trawl. Catches will 

 be assessed quantitatively at sea, given a preliminary sorting, and sent to 

 the U. S. National Museum for final distribution to qualified taxonomists 

 for systematic studies of the fishes and invertebrates collected. 



U. S. COAST AND GEODETIC SURVEY 



GENERAL 



The USC&GS ship PIONEER sailed from San Francisco on Tuesday, February 11, 

 1964, to take part in the International Indian Ocean Expedition. In the 

 Malacca Straits, Andaman Sea, and Bay of Bengal, work was concentrated on 

 geological- geophysical investigations of the regional submarine geology with 

 special emphasis on detailed investigations of several submarine canyons. 

 Three north- south profiles of oceanographic stations were made from 5°N to 

 5°S across the Equator south of the Bay of Bengal to tie in with the overall 

 physical oceanographic investigations of the IIOE, Biological and meteoro- 

 logical observations are part of and in accord with the IIOE programs in 

 biology and meteorology. Open house aboard the PIONEER for local officials, 

 scientists, and the public was held at Calcutta, Colombo, and Djakarta. 

 When possible, shipboard personnel delivered lectures at these ports to 

 acquaint local scientists with the work of the expedition. 



These plans were subject to slight modifications but reflected the PIONEER'S 

 program as it had developed over the past year. The plans for each leg of 

 the expedition are discussed below. Dates of arrival and departure at Manila 



