Table 158. 



-Bathymetric occurrence of Thyasira trisinuata, 

 based on 133 samples and 1,079 specimens. 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Total 



Percentage of 



Samples 



0.7 



4.6 



60.9 



21.8 



7.6 

 3.0 

 0.7 

 0.7 



100.0 



Specimens 



0.4 

 6.3 

 61.6 

 16.9 

 11.6 

 2.9 

 0.2 

 0.1 



100.0 



Table 162.— Bathymetric occurrence of Oiplodonta sp. 

 based on 58 samples and 90 specimens. 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Total 



Percentage of 



Samples 



43.1 

 39.7 

 13.3 



1.7 



1.7 



100.0 



Specimens 



37.8 

 34.4 

 21.1 



1.1 



5.6 



Table 159. --Occurrence of Thyasira trisinuata in bottom 



sediments, based on 133 samples and 1,079 specimens. 



Table 163. — Occurrence of Diplodonta sp. in bottom 



sediments, based on 58 samples and 90 specimens. 



Percentage of 



Bottom type 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



0.8 

 0.8 

 1.5 



1.5 

 35.3 

 39.8 



5.3 



15.0 



100.0 



Specimens 



0.1 

 2.2 



1.6 



1.1 

 25.9 

 52.5 



4.9 

 11.7 



100.0 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shel 1 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



19.0 



74.1 



5.2 



1.7 



Specimens 



17.8 



73.3 



3.3 



5.6 



Table 160. 



-Bathymetric occurrence of Thyasira sp., 

 based on 141 samples and 731 specimens. 



Depth range (m) 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Percentage of 



Samples 



0.7 



4.3 



12.8 



31.2 



34.7 



10.6 



4.3 



1.4 



Specimens 



0.3 



4.1 



17.5 



30.6 



22.7 



23.2 



1.2 



0.4 



Table 164.--Bathymetric occurrence of Arcinella cornuta, 

 based on three samples and three specimens. 



Depth range (m) 



Percentage of 



0-24 



25-49 



50-99 



100-199 



200-499 



500-999 



1000-1999 



2000-3999 



Samples 



33.3 

 66.7 



Specimens 



33.3 

 66.7 



Total 



100.0 



100.0 



Total 



Table 161. — Occurrence of Thyasira sp. in bottom sediments, 

 based on 134 samples and 701 specimens. 



Table 165. — Occurrence of Arcinel la cornuta in bottom sediments, 

 based on three samples and three specimens. 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



0.7 

 3.7 

 4.5 



0.7 

 10.5 

 29.9 



15.7 

 34.3 



100.0 



Specimens 



0.1 

 1.7 

 3.4 



0.1 

 11.3 

 31.0 

 19.4 

 33.0 



100.0 



Bottom type 



Percentage of 



Gravel 



Sand-gravel 



Till 



Shell 



Sand-shell 



Sand 



Silty sand 



Silt 



Clay 



Total 



Samples 



33.3 

 66.7 



Specimens 



33.3 

 66.7 



151 



