FOOD 

 CATEGORIES 



TROPHIC SPECTRUM OF ESTUARIME COMMUNITY 



CONSUMER SPECIES (NEKTON! 



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li| 





5o £5 ::. 



_) UJ uj CL "J - 



m o: o. (A > < 



2 o < 5 o 

 < _i I < < 



w u. « o - 



— ■ -■■■■■ 



MACROBOTTOM 

 ANIMALS 



MICROBOTTOM 

 ANIMALS 



- ^■- -I 



"il"+|-|H' 



IMIHII 

 ll-l-hl — 



-I - - - - 



ZOOPLANKTON 



PHYTOPLANKTON 



M 



VASCULAR PLANT 

 MATERIAL 



l-l 



ORGANIC DETRITUS 

 AND UNDETERMINED 

 ORGANIC MATERIAL 



Mlim- 



— -■ — " 



Figure 5. Trophic spectrum of an estuarine community (Lake Pontchartrain 

 Estuary, Louisiana) (adapted from Odum 1971 after Darnell 1961). 



15 



