Table 6. 



-Bathymetric occurrence of Unidentified Bivalvia, 

 based on 36 samples and 76 specimens. 



Table 10. 



-Bathymetric occurrence of Nucula proxima, 

 based on 221 samples and 12,073 specimens. 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Percentage of 



Samples 



19.4 

 5.6 

 41.6 

 16.7 

 16.7 



Specimens 



15.8 

 2.6 

 55.3 

 14.5 

 11.8 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Percentage of 



Samples 



30.8 



26.7 



36.6 



5.0 



0.9 



Specimens 



46.9 

 6.9 



45.4 

 0.8 



<0.1 



Total 



100.0 



100.0 



Total 



100.0 



Table 7.- 



■Occurrence of Unidentified Bivalvia in bottom 

 sediments, based on 29 samples and 60 specimens. 



Table 11. — Occurrence of Nucula proxima in bottom sediments, 

 based on 214 samples and 12,059 specimens. 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



3.4 

 13.8 

 3.4 

 3.4 

 3.4 

 44.8 

 10.3 

 6.9 

 10.3 



100.0 



Specimens 



1.7 

 8.3 



26.7 

 1.7 

 1.7 



45.0 

 6.7 

 3.3 

 4.9 



100.0 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



0.9 



2.3 



0.5 



1.4 



9.9 



48.1 



17.3 



4.2 



15.4 



100.0 



Specimens 



<0.1 

 0.2 

 0.1 

 0.2 

 0.4 



40.4 



32.9 

 3.7 



22.1 



100.0 



Table 8. 



--Bathymetric occurrence of Nucula delphinodonta, 

 based on 145 samples and 2,092 specimens. 



Table 12. 



--Bathymetric occurrence of Nucula tenuis, 

 based on 215 samples and 2,031 specimens. 



Depth range {m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Total 



Percentage of 



Samples 



5.5 

 13.8 

 40.7 

 17.9 

 13.8 

 4.8 

 3.5 



100.0 



Specimens 



1.8 

 10.6 

 78.2 

 4.3 

 1.6 

 1.3 

 2.2 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Total 



Percentage of 



Samples 



0.5 

 8.4 

 23.7 

 41.4 

 7.9 

 7.9 

 9.3 

 0.9 



100.0 



Specimens 



<0.1 

 4.0 



54.6 



23.8 

 2.7 

 4.5 



10.0 

 0.4 



100.0 



Table 9. --Occurrence of Nucula delphinodonta in bottom 



sediments, based on 143 samples and 2,086 specimens. 



Table 13. — Occurrence of Nucula tenuis in bottom sediments, 

 based on 200 samples and 1,956 specimens. 



Percentage of 



Bottom type 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



2.8 

 4.2 

 4.2 

 2.1 

 0.7 

 23.8 

 29.3 

 13.3 

 19.6 



100.0 



Specimens 



0.7 

 0.4 

 0.8 

 0.5 

 0.2 

 15.6 

 72.2 

 3.3 

 6.3 



100.0 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shel 1 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



3.0 



5.5 



3.0 



1.0 



0.5 



17.5 



35.5 



16.0 



18.0 



100.0 



Specimens 



0.5 



4.2 



0.8 



0.9 



0.1 



7.8 



36.2 



20.4 



29.1 



100.0 



132 



