bb 



ALLAN 



HANCOCK PACIFIC EXPEDITIONS 



VOL.3 



N 



0.5 



CUPP AND ALLEN : PLANKTON DIATOMS 



67 



Numerical Abundance and Pred 

 Cells per Lite 



Table i 



"^^^^"■S^l^n of the Gulf of California 



in 1937 



r • u ""'"'nt s^. f Diatoms in Catches Greater than 100,000 



Chaetoceros radicans 

 ciirvisetus 



Chaetoceros radicans 

 debilis 



Chaetoceros radicans 

 Nitzschia seriata 



Chaetoceros radicans 



species 

 Pseudoeunotia doliolus 



Chaetoceros radicans 

 Pseudoeunotia doliolus 



Chaetoceros radicans 

 debilis 



Chaetoceros radicans 

 debilis 



Chaetoceros radicans 

 debilis 



Predominant Species 

 Cells per Liter 



Chaetoceros radicans 

 debilis 



species 

 socialis 

 costatum 

 compressus 



socialis 



costatum 



species 



species 

 costatum 

 compressus 

 socialis 



compressus 



species 



radicans 



species 

 debilis 

 japonica 

 costatum 



radicans 



species 



compressus 



Good 

 Condition 



146,250 

 16.750 



416,875 

 3,625 



847,500 

 2,625 



1,188,750 

 4,750 

 5,125 



4,460,000 

 21,500 



2,580,000 

 41,500 



2,652,500 

 108,500 



1,103,750 

 27,875 



64,500 

 750 



711,000 

 709,500 

 480,000 

 394,500 



104,500 



110,500 



54,000 



439,500 

 451,500 

 307,500 

 292,500 



361,250 

 161,250 

 127,500 



817,500 

 223,500 

 201,000 

 146,250 



1,645,000 

 241,000 

 190,000 



Poor 

 Condition 



19,250 

 4,250 



8,125 

 375 



97,500 

 



62,500 



375 







485,000 

 



130,000 

 29,500 



277,500 

 10,750 



148,750 

 3,625 



35,750 

 3,250 



30,000 

 

 



15,000 



8,250 







16,000 



18,000 

 

 



10,500 







6,250 



28,500 



75,000 



28,500 



4,550 



15,000 



820,000 



112,000 



30,000 



Total 



165,500 

 21,000 



45 5,000 

 4.000 



945,000 

 2,625 



1,251,250 

 5,125 

 5,125 



4,945,000 

 21,500 



2,710,000 

 71,000 



2,930,000 

 119,250 



1,252,500 

 31,500 



100,250 

 4,000 



741,000 

 709,500 

 480,000 

 409,500 



112,750 



110,500 



70,000 



457,500 

 451,500 

 307,500 

 303,000 



361,250 

 167,500 

 156,000 



892,500 

 252,000 

 205,550 

 161,250 



2,465,000 

 353,000 

 220,000 



