Percent contribution of major caxonomic groups and 

 their abundance and diversity at different depths 

 during Imperial Beach study. 



SPECIES 

 GROUP 



ABUNDANCE 

 (pet) 



SPECIES COMPOSITION 

 (pet) 











IKTERTIDAL STATION 



INTERTIDAL STATION 







A 



B C ABC''' 



ABC 



ABC'"' 



Crustaceans 



77 



91 85 84 



46.5 48 53 



49 



Polychaetes 



19 



7 11 12 



38 38 32 



36 



MoUusks 



1 



12 1 



6.5 7 6.5 



7 



Other 



3 



11 2 



9 7 7 



8 





A 



3.7-METER STATION 

 B C ABC''' 



3.7-METER STATION 

 ABC 



ABC''' 



Crustaceans 



40 



52 30 41 



51 46 36 



48 



Polychaetes 



33 



35 64 44 



32.5 32 30 



31.5 



Mollusks 



2 



4 1 2 



8 12.5 7 



9 



Others 



25 



9 4 13 



9 9 17 



11.5 





A 



6.1- METER STATION 

 B C ABC 



6.1-METER STATION 

 ABC 



ABC^ 



Crustaceans 



21.5 



55 60 45.5 



38 38 34 



35 



Polychaetes 



53 



33 28 38 



44 45 49 



46 



Mollusks 



8 



3 9 6.5 



10 14 6 



10 



Others 



17.5 



9 3 10 



8 9 10 



9 



Combined values of stations A, B, and C. 



80 



