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20. Abstract (continued). 



randomly dispersed, and different size classes did not show a vertical 

 separation. 



The presence and absence of clams were shown to be correlated with beach 

 slope and grain size. 



Pismo clams mature in their second year in Monterey Bay, and the primary 

 spawning time is in September and October. 



The growth rate is more rapid in young clams and varies throughout the 

 year in all size classes but is most rapid in the summer and fall. 



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