Biological Survey — Oswego Watershed 



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Chart 4. Algae in net plankton of Cayuga, Seneca and Oneida lakes. 

 Scale (number of organisms per liter of water). 

 1 space = 1000; . = less than 100; . . =100-500. 

 Genera observed: 



Cyanophyceae; Anabaena, Microcystis, Gloeotrichia -0. 

 Chlorophyceae; Staurastrum, Pediastrum -OC, Actinastrum -SO, 

 tyosphaerium -SO. 



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Chart. 7. Algae in nannoplankton of Cayuga, Seneca and Oneida lakes. 



Scale (number of organisms per liter of water). 



1 space = 20,000; . = less than 1000; . . = 1000 2000. 



Genera observed: 

 Cyanophyceae; Aphanocapsa, Coelosphaerium, Microcystis, Merismo- 

 pedia -CS, Gloeocapsa -CS, Gloeothece -S, Chroococcus 0. 

 Chlorophyceae; Characium, Cosmariuiri, Crucigenia, Dictyosphaerium 

 -OC, Eudorina, Gloeotaenium -CS, Oocystis, Pandorina -O, Pediastrum 

 -CS, Quadrigula, Scenedesmus, Sphaerocystis -0, Staurastrum -CS, 

 Tetraedon -CS. 



