338 



ANIMALS IN INLAND WATERS 



18.9 



16.6 



15.2 



c. 

 <u 

 514.2 



+-* 

 «J 



L. 

 <D 

 Q. 



E 



E 



| 9.9 



CO 



6.2 



5.1 



Diaptomus 

 gracilis* 

 .E Su Wi 



Bosmina 

 longirostris 

 Su Wi 



Cyclops 



strenuus 

 Su Wi 



Q. 



o> 



a 



- 10 



12 



14 



- 16 



m 





'-•'•*^**>*?_r 



mm 







---.-■ - : t -\ 



I v " ;>.* :* 





18 



T 



20 





22 



24 



- 26 



28 



30 



32 



34 



■• : ":-%-J*-i'?. - 

 ■■V..'Q>v.il 





' &<■£'&*■'■■: -h 



SH>'- : US2 





HP 



TT^W! 





SS 



;^^» 



3*§4 







*•«•%:*-; 





ivi^c 4 



o 



4 



Fig. 99. — Vertical distribution of Diaptomus gracilis, Bosmina longirostris, and 

 Cyclops strenuus in Lake Constance, in summer, Su; and winter, Wi. After Hofer. 



