284 Lake Maxinkuckee, Physical and Biological Survey 



immense school, very dense and compact, of straw-colored min- 

 nows and skipjacks along the east side of Long Point for a long 

 distance. 



On the 5th, enormous schools, considerably larger and denser 

 than ever noted before/were seen along the east side of Long Point. 

 They made great dark patches on the bottom, like Chara carpet. 

 On the 12th, a good many under the ice near shore all day ; a large 

 and very dense school under the bow of a small steamer at the 

 Arlington station. Many were noted also on the 14th, in each lake, 

 under the ice, and a few under the ice in Lost Lake on the 15th; 

 none seen in the Outlet. 



Similar conditions were observed in 1904. On December 16 

 and 24, several schools were seen along Long Point, but they were 

 not so dense as in 1900. On the 27th, enormous schools were seen 

 under the Depot pier. The next day many skipjacks were noted 

 under the Outlet bridge. On January 4, 1905, considerable num- 

 bers were seen along the north shore where there was some ice, and 

 Culver Inlet was full of straw-colored minnows. 



In 1906, a great many were seen on east side of Long Point, 

 November 13, and on the 14th, many in Lost Lake. 



In a body of water as small as Lake Maxinkuckee and with no 

 considerable tributary streams or outflow, the movements of the 

 fishes are necessarily much restricted. There are, however, certain 

 movements that may be considered, as follows : 



1. From one depth to another: Movements of this kind occur 

 at various times. 



a. During the summer, when the deeper parts of the lake are 

 abundantly supplied with absorbed oxygen, certain species, such 

 as the walleyed pike and to some extent the small-mouth black bass, 

 the large-mouth bass, the bluegill and the yellow perch, will be 

 found in deep water. This is particuarly true of the walleyed pike ; 

 of the other species named it is true only to a very limited ex- 

 tent. In the fall, even as early as September, the oxidation of 

 the vast amount of dead plankton which during the summer has 

 been slowly falling to the bottom of the lake in a continuous shower 

 from above, will have exhausted the supply of oxygen in the deep 

 water. The walleyed pike and other fishes which were able to live 

 there during the summer are now forced to move up to shallower 

 depths to which, fortunately, they are able to adapt themselves. 

 This movement is not usually until toward the end of September 

 or in October. By the middle of October they have come out into 



