574 NATIONAL OCEANOGRAPHIC PROGRAM LEGISLATION 



The following tests were scheduled: Biological samplmg at sliips' 

 speed of 19 to 191^ knots, which incidentally, is the fastest that this 

 has ever been done; oxygen consumption and other tests on living 

 specimens in the Van laboratory on board ship ; tempertaure structure 

 determination by expendable Bathy thermographs (BT's) every 4 

 hours during the cruise, plus BT drops before and after each biologi- 

 cal sampling; constant recording of main mjection temperature 

 ductivity and salinity; and periodic salinitj' checks against Cope- 

 hagen Standard Sea "Water samples ; atmospheric and weather data ; 

 and data for manpower, cost and equipment analyses. 



"With regard to our test schedules, we performed jetnet tows at least 

 twice a day each of which was followed by a 4- to 6-hour analysis, if 

 we had a successful tow, by Dr. Hoffmami and liis associate. 



"We made expendable BT runs every 4 hours during the whole 

 cruise, plus BT runs before and after each jetnet tow, we made tem- 

 perature and salinity readmgs contmuously, and we kept a contuiuous 

 weather log. 



Our funding in the amount of $16,700 was supplied by the Office of 

 Xaval Eesearch. 



The following facilities and equipment were used: The ship from 

 the American Export-Isbrandtsen Lmes: the van supplied by the U.S. 

 Navy; the scientific equipment from Florida Atlantic University 

 Laboratories and Xa^'y contract purchase for special equipment ; the 

 seamanship and towing equipment on contract purchase ; the expenda- 

 ble BT system by Packard Electric Co. and the Generiil Motors De- 

 fense Research Laboratory and also another expendable BT system 

 from Francis Associates (Sippican Corp.) . 



The jetnet was provided by the General Motors Defense Laboratory 

 on loan. The constant reading temperature and conductivity record- 

 ers and a portable salinometer were provided by the Oceanographic 

 Office of the Navy. 



The expendable BT temperature profiles we ran across the ocean, 

 were an outstanding success with both the Packard (General Motors) 

 and Francis Associates (Sippican) equipment; all equipment worked 

 very well. The Packard equipment was used for 68 runs. Sixty- 

 six were totally successful and one was a partial success ; the Sippican 

 was used for 28 runs with 27 being totally successful. 



The data has yet to be analyzed and correlated to be sure of our 

 results. 



We made 17 biological tows using the jetnet. Twelve gathered 

 plankton samples but many samples were mangled; five had samples 

 suitable for viability tests on living organisms. We performed bio- 

 logical tests and in one case the samples were kej)t alive for more than 

 30 hours on board ship. 



A preliminary analysis shows that the towing configuration of the 

 ship, which I will demonstrate on a chart in just a moment, was not 

 satisfactory- We used three different stations in the ship and we 

 received quite a bit of damage to our jetnets. 



The quantity of plankton samples received at high speed were 

 marginal ; however, we were able to get sufficient to conduct most of 

 our tests. 



The oxygen consumption and viability tests desired by Dr. Galler 

 are now under analysis by Dr. Hoffmann, but we did prove that the 

 tests can be conducted at sea. 



