The Eastern Bering Sea Shelf The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder easternberingsea00hood Year: 1981 I Bivalve mollusks 1171 Figure 66-11. 1980). Qualitative distribution of Nuculana fossa taken in the southeastern Bering Sea by van Veen grab (Feder et al., (), with 100 percent of the clams at sediment sorting values from > to (Table 66-6). Ninety- seven percent of C. ciliatum occurred at depths from 50 to 75 m (Table 66-7). Minor Component of Collection: One percent of the clams occurred in fine to very
The Eastern Bering Sea Shelf The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder easternberingsea00hood Year: 1981 I Bivalve mollusks 1171 Figure 66-11. 1980). Qualitative distribution of Nuculana fossa taken in the southeastern Bering Sea by van Veen grab (Feder et al., (), with 100 percent of the clams at sediment sorting values from > to (Table 66-6). Ninety- seven percent of C. ciliatum occurred at depths from 50 to 75 m (Table 66-7). Minor Component of Collection: One percent of the clams occurred in fine to very fine sand () and 1 percent in medium silt (). Two percent of C. ciliatum occurred at depths of 75-100 m and 1 percent at 100-125 m (medium silt). Cyclocardia crebricostata was distributed primarily within Bristol Bay and northwest of the bay, with a small pocket north of the Pribilof Islands (Figs. 66-1, 66-20, and 66-21). The greatest abundance of this species occurred at Stations 1, 10,11, 20, 23, and 55 (Figs. 66-2, 66-20, and 66-21; Table 66-4). The species was present at 25 percent of the stations sampled by van Veen grab. The greatest biomass occurred at Stations 1, 6, 20, 24, 55, and 60 (Table 66-4). Cyclocardia crebricostata was associated with sediments ranging from very coarse sand to coarse silt (; Tables 66-1 and 66-2, Figs. 66-2 to 66-6, 66-20, and 66-21; Table 66-5). Major Com- ponent of Collection: Seventy-six percent of C. crebricostata occurred in fine sand to very fine sand () with 58 percent of the clams at sediment sorting values from > to (Table 66-6). Ninety-nine percent of C crebricostata occurred at depths from 25 to 75 m (Table 66-7). Minor Com- ponent of Collection: Five percent of the clams occurred in coarse to medium sand (), 18 percent in medium to fine sand (), and 1 percent in coarse sand to medium silt () with 8 percent of the sediment sorting at , 13 percent at >0.
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