NY BIGHT 



CHESAPEAKE BIGHT 



* * 



* * 



* * 



^^ NO SAMPLE 



^H I BLUE -CREEN ALCAE 



DIWOF LAGELLATES 



=) 2 CERATIUM TRIPOS 



^ 3 C FUSUS 



^= 4 C MASSILIENSE 



=i 3 OXYTOXUM SPP 

 SILIC OFLAGELLATES 

 I. . I 6 SILICOFLAGELLATES 

 DIATO MS 



7 THALASSIOSIRA SPP 



8 aiODULPHIA ALTERNANS 



9 THALASSIOWEMA WIT ZSCHIOIOES 



10 NITZSCHIA SERIATA 



11 RHIZOSOLENTA ALATA FORMA A LATA 



12 R ALATA FORMA GRACILLIMA 



13 R ALATA FORMA INDICA 



14 R HEBETATA FORMA SEMISPIWA 

 I 5 THALASSIOTHRIX LOWGISSIMA 



16 CHAETOCEROS SPP 



17 COSCINOnSCUS SPP 

 19 CERATAULINA BERGONII 

 19 ASTERIONELLA JAPOHICA 



20 SKELETONEMA COSTATUM 



MONTH 



Figure 20.2. 



-Net phytoplankton abundance in Shelf Water of the New York and Chesapeake Bights, 1976. See text for explanation of 



abundance units. 



343 



