AGE AND GROWTH OF THE CISCO 
317 
In both Allequash and Tomahawk Lakes the high values of K indicate good 
condition. 
The exceptional conditions under which the Allequash cisco lives should be 
mentioned. (See table 1 of general paper.) Formerly there existed a rather general 
belief that the coregonids as a stenothermic form adapted to a cold-water habitat 
were limited in their distribution to the larger, deeper, lakes. Wilier (1924) showed 
that such a generalization did not apply to the distribution of the kleine Marane, 
Coregonus albula, in the lakes of East Prussia. Scott (1931) called attention to the 
exceptional conditions under which the cisco lives in Indian Village Lake (Indiana). 
This lake is small and shallow (6.4 meters) and in midsummer there is “only a trace” 
of oxygen below 4 meters. Allequash Lake is another example of a shallow-water 
habitat for the cisco. The cisco here must not only adjust itself to a wide annual 
range of temperature variation but also to unusual associates in the form of other 
species of fish. Along with the 70 ciscoes captured in 1930 were taken 1 blue gill, 
15 suckers, 22 pike-percb, 32 rork bass, and 182 perch. 
