680 



BIOLOGY OF THE SEAS OF THE U.S.S.R. 



of the Academy of Sciences for a broad, many-sided survey of the Far Eastern 

 Seas and of the northern part of the Pacific Ocean. During the International 

 Geophysical Year (1957-59) the work done by this expedition was further 

 extended to cover all the northern part of the Pacific Ocean (Figs. 321 and 

 322). 

 The old idea of Soviet oceanologists of a floating marine laboratory, which 



Fig. 322. Vityaz survey in the Pacific Ocean during the period of 1957-59. 



could survey simultaneously the sea waters from the surface to the great 

 depths of the ocean throughout all its regions, was fulfilled by the Vityaz. 

 In the early 'twenties the research ship Perseus was built for this purpose by 

 the State Oceanographic Institute, and for many years (1920 to 1943) she 

 worked in the northern seas of the u.s.s.R. 



Throughout the 12 years of research by the Vityaz (30 separate expeditions) 

 rich new material was collected on all branches of oceanology and especially 

 on the geology and biology of the great depths of the Pacific Ocean, including 



