APPENDIX 



181 



APPENDIX 



Statistical Tables 



Table 1. This table shows the maximum length and the width, the 

 area, the depth, and the volume of the four lakes on which the plankton 

 studies were made. 



Lake 



Length 

 in Km. 



Width 

 in Km. 



Area in 

 Sq. Km. 



Maximum 



Depth in 



Meters 



Mean 



Depth in 



Meters 



Volume in 



in Cubic 



Meters 



Mendota . . . 

 Monona. . . . 

 Waubesa . . . 

 Kegonsa 



9.50 

 6.70 

 6.75 

 4.83 



7.40 

 3.85 

 2.25 

 3.62 



39.40 



14.10 



8.24 



12.70 



25.6 



22.5 



11.1 



9.6 



12.1 

 8.4 

 4.9 

 4.6 



478,370,000 



118,887,000 



40,252,000 



59,060,000 



Table 2. The number of runs or catches made on the different lakes 

 in the various years, the volume of water strained, and the dry weight 

 of the net plankton obtained are given in this table. 







Number 



Volume 



Net Plankton 



Lake 



Year 



of 

 Catches 



of Water 

 in Liters 







Dry Weight 



Milligrams 











in Grams 



per Cubic 



Meter of 



Water 



Mendota 



1911 



38 



164,740 



42.535 



258 





1912 



58 



369,900 



222.502 



601 





1913 



91 



623,800 



355.165 



569 





1914 



37 



260,100 



76.937 



296 





1915 



115 



441,460 



220.181 



498 





1916 



65 



74,960 



35.497 



473 





1917 



11 



12,070 



4.233 



350 





Total 



415 



1,947,030 



957.050 



491 



Monona 



1911 



4 



12,710 



9.600 



755 





1912 



6 



43,140 



69.899 



1,620 





1913 



16 



99,510 



144.864 



1,556 





1915 



8 



9,776 



19.221 



1,966 





1916 



13 



12,510 



7.698 



615 





Total 



47 



177,646 



251.282 



1,414 



Waubesa 



1913 



2 



11,800 



26.729 



2,265 





1915 



4 



5,732 



22.426 



3,912 





1916 



12 



11,641 



14.499 



1,245 





Total 



18 



29,173 



63.654 



2,182 



Kegonsa 



1913 



1 



3,318 

 2,157,167 



20.282 



6,112 



Grand Total 





481 



1,292.268 



