ABSTRACT 



In the late summer (August-October) of 1956, two research 

 vessels from POFI cooperated with those of three other organiza- 

 tions in a quasi -synoptic oceanwide survey of the Pacific Ocean. 

 Operating in the area of the Marquesas Islands, the Hugh M. Smith 

 made detailed physical, chemical, and biological observations in 

 order to define features of oceanic circulation and to obtain infor- 

 mation on the abundance and distribution of plant and animal life. 

 Also operating in that area, the Charles H. Gilbert sought to 

 evaluate the tuna resources by longline and live -bait fishing, by 

 trolling, and by observation of fish schools and bird flocks. Data 

 thus obtained are presented here with a description of the field 

 and laboratory procedures involved. 



