Trends of production and catch -per- 

 unit -effort are followed for principal 

 species. Life history data are given 

 for the walleye and yellow perch. 

 Historical accounts are provided of 

 the artificial propagation of the wall- 

 eye and whitefish from 1918 through 

 1938. 



Van Oosten, John, Hilary). Deason, and 

 Frank W. Jobes 

 1934. A microprojection machine de- 

 signed for the study of fish scales. 

 Jour, du Cons., Vol. 9, pp. 241- 

 248. 

 Description, illustrated by cross - 

 section drawing and photograph, of 

 optical equipment and general struc- 

 t^ural specifications of machine 

 specially adapted to scale work. 



Van Oosten, John, and Paul H. Eschmeyer 

 1956. Biology of young lake trout 



(Salvelinus namaycush), in Lake 

 Michigan. Fish and Wildlife Serv., 

 Res. Rep. No. 42, 88 pp. 

 Based on collections of five mesh 

 sizes (2-3/8 to 3 inches) of experi- 

 mental gill nets fished in 1930-1932. 

 Includes information on: annual and 

 local variation of size, age, and 

 growth; length -weight relation and 

 condition; sex ratio; geographical and 

 bathymetric distribution; local and 

 regional differences and seasonal 

 changes in abundance; selective action 

 of gill nets; associated species of fish. 



Van Oosten, John, and Ralph Hile 



1949. Age and growth of the lake white- 

 fish, Coregonus clupeaformis 

 (Mitchill), in Lake Erie . Trans . 

 Am. Fish. Soc, Vol. 77(1947), 

 pp. 178-249. 

 Analysis of production statistics, 

 1871-1946, to bring out long-term 

 trends of yield and shifts in centers 

 of production and a general life -history 

 study including consideration of fluctua- 

 tions in growth and the strength of 

 year classes in relation to environ- 

 mental condition, length -weight rela- 

 tionship (general relationship, seasonal 



changes of condition, loss of weight 

 at spawning), variation of sex ratio 

 with age and by season, age at maturity, 

 and spawning season. 



Van Oosten, John, Ralph Hile, and Frank W. 

 Jobes 

 1946. The whitefish fishery of Lakes 

 Huron and Michigan with special 

 reference to the deep-trap-net 

 fishery. Fish. Bull., Fish and 

 Wildlife Serv., Vol. 50, pp. 297- 

 394. 

 Review of statistics on production of 

 whitefish in all waters of Lakes Mich- 

 igan and Huron, beginning with 1879, 

 and a detailed consideration of annual 

 fluctuations of production, abundance, 

 and fishing intensity in local districts 

 of the State of Michigan waters of the 

 two lakes, beginning with 1929, to 

 bring out the disastrous effects of the 

 deep trap net on whitefish stocks in 

 those districts in which the gear was 

 fished intensively. Includes sections 

 on bathymetric distribution and season- 

 al movements of whitefish, lake trout, 

 walleyes, burbot, and suckers, and on 

 the fishing action of pound nets and 

 deep trap nets (relation of mesh size 

 to number and sizes of fish taken; 

 gilUng and bloating of live fish at lift- 

 ing; numbers of dead fish in nets; 

 estimates of total numbers of under- 

 sized fish destroyed). 



Van Oosten, John, F. A. Westerman, W. C. 

 Adams, andW. L. Finley 

 1939. Migratory fish, a problem of inter- 

 state cooperation? Trans. 4th N. 

 Am. Wildlife Conf., pp. 25-43. 

 Panel discussion concerned principally 

 with Great Lakes problems. Includes 

 comments on the progressive depletion 

 in the various lakes and the great dif- 

 ficulty of coping with the problem under 

 the current system of divided control . 



Westerman, Fred A. , and John Van Oosten 



1939. Report to the Michigan State Senate on 

 the fisheries of Potagannissing Bay, 

 Michigan. Mich. Dept. Cons., 

 82 pp. 



39 



