Van Oosten, John (continued) 



1938. Michigan's commercial fisheries of the Great Lakes, 

 Mich, Hist, Mag., Vol. 22, pp. 3-39. 



Review of fishery from earliest to modern times with 

 respect to fishing grounds, boats and gear (construction and 

 operation of different types described) , and trends of pro- 

 duction. Includes accounts of early statistical and biologi- 

 cal surveys and of modern research programs and an analysis 

 of present-day problems of regulation and management. 



1938. The extent of the depletion of the Great Lakes fish- 

 eries. Proc. Great Lakes Fish, Conf . , at Detroit, 

 Mich., Feb, 25-26, Council of State Governments, 

 pp. 10-17. 



Presentation and discussion of charts showing out- 

 standing examples of collapse in production in Lake Erie 

 sturgeon, Lake Superior whitefish, Lake Huron yellow perch,. 

 Stresses fallacy of use of total production figures that do 

 not reflect progressive shift of species composition from 

 more valuable to coarse varieties or shov; effects of exploi- 

 tation of new grounds or varieties (as in the recently ex- 

 panded lake herring fishery of Lake Superior). 



1938. The age and grorth of the Lake Erie sheepshead, 



Aplodinotus grunniens Rafinesque, Pap. Mich. Acad. 

 Sci., Arts, and Lett,, Vol. 23 (1937), pp. 651-668. 



Life-history study including data on age and size 

 composition, growth in length and weight, growth compensation, 

 length- weight relationship, and condition. The large size 

 attained by some sheepshead was shown to depend on a long 

 life. 



1938, From Cisco to perch to pike. State Government, Vol, 11, 

 pp. 55-57. 



Review of decline of production of selected species in 

 certain lakes with emphasis on the progressive nature of de- 

 pletion in the Great Lakes, shown especially by deterioration 

 of average quality of the catch as fishermen turned to cheaper 

 species after depleting the stocks of the more desirable 

 varieties , 



-31;- 



