560 



U, S. BUREAU OF FISHERIES 



To provide for the cooperation necessary in such a many-sided 

 task, the scientific staff has been centralized at Cambridge, Mass., 

 where laboratory and library facilities have been generously provided 

 by the Museum of Comparative Zoology. This not only has the 

 advantage of coordinating the work, but also makes it possible to 

 consult readily members of the zoological, physiological, physical, 

 and chemical departments of Harvard University, when problems 

 arise requiring special knowledge in particular fields. Especially 

 valuable has been the constant advice of Prof. Henry B. Bigelow, 

 curator of oceanography, whose extensive experience and intimate 

 knowledge of oceanic phenomena off our Atlantic coast has always 

 been available to guide the course of our studies. 



FiGOBB 1. — Oceanographic work aboard the Albatross II. Attaching a messenger 

 to a Green-Bigelow water bottle used to secure a sei-ies of water samples and 

 temperature at vaiious depths 



Equally gratifying have been the results of cooperation with the 

 Bingham Oceanographic Foundation of Yale University. Prof. 

 A. E. Parr, curator of that institution, has kindly given generously 

 of his time to supervise the studies on the spawning of food fishes 

 and growth of their young in the Delaware Bay region, and his 

 findings already have provided valuable links in the chain of cir- 

 cumstances governing the maintenance of the squeteague fishery. 



The progress made during 1930 on the various projects included 

 in the research work on the North and Middle Atlantic coast is 

 summarized in the following sections. 



OCEANOGRAPHIC STUDIES 



Perhaps the outstanding result of fishery investigations both in 

 this country and abroad during the last two decades has been the 



