444 U. S. BUREAU OF FISHEEIES 



The chief oyster investigator, Dr. Paul S. Galtsoff, is also located 

 in Washington, but field laboratories have been established at Mil- 

 ford, Conn., and a cooperative laboratory for oyster research on Puget 

 Sound is furnished by the State of Washington at Olympia. Re- 

 search is conducted on the physiology of oysters at the Woods Hole 

 (Mass.) laboratory during the summer months, and the studies on 

 oyster culture in the South Atlantic area are also under the technical 

 supervision of the chief oyster investigator. 



Studies of the razor clam in Alaska were conducted independently 

 by investigators temporarily detailed to that work. 



During the past year the division has operated a number of ves- 

 sels, launches, and floating laboratories in the conduct of its scientific 

 investigations. Various phases of the North Atlantic fisheries in- 

 vestigations have required the full time of the Alhatross 11^ a 150- 

 foot steam vessel equipped for oceanographic work and experimental 

 trawling. The PhaJarope^ a 110-foot steam yacht, and a chartered 

 power boat in New Jersey have also been employed part time. 

 Fishery studies in Lake Michigan have been prosecuted from the 

 motor ship Fulmar^ a 102-foot vessel equipped for experimental fish- 

 ing and limnological studies. An able 38-foot cabin motor cruiser 

 and various smaller launches are stationed at the Beaufort (N. C.) 

 laboratory and two seagoing launches, 45 and 65 feet, respectively, 

 are used by the shrimp investigators of the Gulf. On the Mississippi 

 River two house boats and various launches provide laboratory and 

 collecting facilities, one an 85-foot quarter boat on the lower river 

 houses Doctor Ellis's staff of a dozen coworkers and has a large, 

 well-equipped physiological and chemical laboratory, and another 

 50 feet long is stationed in the Upper Mississippi Wild Life and 

 Fish Refuge for limnological work. In Alaska a 45-foot launch is 

 used exclusively for herring investigations and various others of the 

 bureau's fleet of vessels are employed as circumstances warrant. 

 ' In order to bring before the public certain research activities 

 closely related to the bureau's studies of the Pacific salmon, the work 

 undertaken at odd times during the last 12 years by Dr. Henry B. 

 Ward, of the University of Illinois, should be mentioned. At in- 

 tervals during the summers since 1918 Doctor Ward has been engaged 

 in research on problems related to the migration of the sockeye 

 salmon supported by funds of the bureau but conducted independ- 

 ently of the division of scientific inquiry. 



These studies, while of great interest scientifically, have produced 

 results that promise considerable practical application, especially 

 since the salmon, an anadromous species, is produced in a region 

 where the interests of conservation and hydroelectric poAver develop- 

 ment have been and will continue in violent conflict. 



The nature of these studies by Doctor AVard is indicated by the 

 following titles, which are recommended to the critical attention of 

 fishery students and conservationists: 



Some features in the migration of tlae sockeye salmon and their practical 

 significance. Proceedings of the American Fisheries Society for 1020 nn 

 387^26. ■ '11- 



Some of the factors controlling the migration and spawnings of tlie Alaska 

 red salmon. Ecology, vol. 2, No. 4, October, 1921. 



The influence of a power dam in modifying conditions affecting the migration 

 of salmon. Proceedings of the National Academy of Sciences, vol 13 No 12 

 December, 1927, pp. 827-833. 



