SIMPLIFIED DIAGRAM OF THE FOOD WEB IN THE GULF OF THE FARALLONES 





Phytoplankton 



Scallops 







Zooplankton 

 Oysters 





Without phytoplankton, the diversity and abundance of marine life in the Gulf of the Farallones would be impos- 

 sible. Phytoplankton provide food for a tremendous variety of organisms, including zooplankton (microscopic 

 animals), bivalve molluscan shellfish (mussels, oysters, scallops, and clams), and small fish (such as anchovies 

 and sardines). These animals, in turn, provide food for other animals, including crabs, starfish, fish, marine birds, 

 marine mammals, and humans. 



Phytoplankton 33 



