. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Bivalve moUusks 1183 180' 175" 170° 165' 160' 155". 160 Figure 66-23. Qualitative distribution of Spisula polynyma taken in the southeastern Bering Sea by van Veen grab (Feder et al. 1980). and M. calcarea in the areas where there are large numbers of crabs and flatfishes (Tables 66-13 to 66-15, 66-22, 66-23, and Figs. 66-11, 66-13, and 66-15) (Pereyra et al. 1976) suggest that mortality rates in these areas are much higher. The presence of large number
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Bivalve moUusks 1183 180' 175" 170° 165' 160' 155". 160 Figure 66-23. Qualitative distribution of Spisula polynyma taken in the southeastern Bering Sea by van Veen grab (Feder et al. 1980). and M. calcarea in the areas where there are large numbers of crabs and flatfishes (Tables 66-13 to 66-15, 66-22, 66-23, and Figs. 66-11, 66-13, and 66-15) (Pereyra et al. 1976) suggest that mortality rates in these areas are much higher. The presence of large numbers of N. tenuis throughout the study area suggests that this species is not heavily preyed upon by crabs and flatfishes (Tables 66-11, 66-22, and 66-23; Fig. 66-9). Nuculana and Macoma have been identified as major prey species of the snow crab Chionoecetes opilio and king crab Paralithodes camtschatica in the Bering Sea (Feder et al., 1980), and of the snow crab C. bairdi and king crab in Cook Inlet (Feder et al. 1979, Paul et al. 1979). Tarverdieva (1976) also states that bivalves are an important prey for all three species of crabs in the southeastern Bering Sea. The results of the present survey support Neiman's age-composition. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hood, D. W. (Donald Wilbur), 1918-; Calder, John A; United States. Office of Marine Pollution Assessment; United States. Bureau of Land Management. [Rockville, Md. ?] : U. S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Office of Marine Pollution Assessment ; Seattle, Wash. : Distributed by the University of Washington Press
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