Table234.--Bathymetric occurrence of Abra sp. , based on 



bas 



ed on 



58 



samp 



les 



and 297 s 



aecimens. 







60 samples 



and 



125 



specimens. 



















Percentage 



of 















Percentage 



of 



Depth range 



(m) 

















Depth range 



(m) 















Samples 





S 



pecimens 



Samples 





Specimens 



0-24 











63.8 







86.5 



0-24 









33.3 





32.8 



25-49 











32.8 







12.5 



25-49 









21.7 





21.6 



50-99 











3.4 







1.0 



50-99 









8.3 





7.2 



100-199 











— 







— 



100-199 









25.0 





25.6 



200-499 











— 







— 



200-499 









10.0 





11.2 



500-999 











-- 







— 



500-999 









1.7 





1.6 



1000-1999 











— 







— 



1000-1999 









— 





— 



2000-3999 











— 







— 



2000-3999 









— 





— 



Total 











100.0 







100.0 



Total 









100.0 





100.0 



Table 231. — Occurrence of Tel lina versicolor in bottom 



sediments, based on 58 samples and 297 specimens. 



Table 235;-0ccurrence of Abra sp. in bottom sediments, based 

 on 60 samples and 125 specimens. 



Bottom type 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Percentage of 



Samples 



1.7 



29.4 

 67.2 



1.7 



Specimens 



30.6 



68.4 



0.7 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



6.7 

 26.6 

 35.0 

 25.0 



5.0 



Specimens 



8.0 

 24.8 

 35.2 

 24.8 



4.0 



Table 232.— Bathymetric occurrence of Tellina sp. , 



Table 236. —Bathymetric occurrence of Semele bellastriata. 



based 



on 



■o 



samples 



and 151 specimens. 





based 



on 



19 



samples 



and 38 specimens. 

















Percentage 



of 















Percentage 



of 



Depth range 



(mj 















Depth range 



(mj 

















Samples 





Specimens 



Samples 





Specimens 



0-24 











44.3 





52.9 



0-24 











31.6 





21.1 



25-49 











38.6 





33.8 



25-49 











68.4 





78.9 



50-99 











11.4 





10.6 



50-99 











— 





— 



100-199 











5.7 





2.7 



100-199 











— 





-- 



200-499 











— 





-- 



200-499 











__ 





-- 



500-999 











— 





— 



500-999 











— 





— 



1000-1999 











-- 





-- 



1000-1999 











— 





— 



2000-3999 











— 





" 



2000-3999 











— 





— 



Total 











100.0 





100.0 



Total 











100.0 





100.0 



Table 233. --Occurrence of Tellina sp. in bottom sediments, 

 based on 68 samples and 142 specimens. 



Table 237.— Occurrence of Semele bellastriata in bottom 



sediments, based on 19 samples and 38 specimens. 



Bottom type 



Percentage of 



Samples 



Specimens 



Bottom type 



Percentage of 



Samples 



Specimens 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shel 1 



Sand 



Silty sand 



Silt 



Clay 



Total 



4.4 

 19.1 

 67.6 

 5.9 

 1.5 

 1.5 



100.0 



2.1 

 18.3 

 71.1 

 3.6 

 0.7 

 4.2 



100.0 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



36.8 

 63.2 



100.0 



21.1 

 78.9 



160 



