. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Figure 65-3. Benthic trawl stations occupied in tiie north- eastern Bering Sea, 1976. I TOTAL EPIFAUNAL BIOMASS Norton Sound I Biommi l9/m' > 4 ^ O < 8 8< O <'J 12* Q 173° 17. Figure 65-4. Distribution and biomass of total epifauna in the northeastern Bering Sea. Invertebrates included 11 phyla, 94 families, and 186 species. The phyla containing the majority of the species were MoUusca (71 species), Arthropoda (39), Echinodermata (25), and Annelida (1
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Figure 65-3. Benthic trawl stations occupied in tiie north- eastern Bering Sea, 1976. I TOTAL EPIFAUNAL BIOMASS Norton Sound I Biommi l9/m' > 4 ^ O < 8 8< O <'J 12* Q 173° 17. Figure 65-4. Distribution and biomass of total epifauna in the northeastern Bering Sea. Invertebrates included 11 phyla, 94 families, and 186 species. The phyla containing the majority of the species were MoUusca (71 species), Arthropoda (39), Echinodermata (25), and Annelida (16); Urochordata (Chordata), Ectoprocta, and Cnidaria had 10, 9, and 8 species, respectively (Tables 65-1, 65-2, and 65-3). Echinodermata were dominant in biomass ( percent). Mollusca, Arthropoda, and Urochordata contributed , , and percent of the total biomass, respectively. Fifteen species made up percent of the epifaunal biomass. The most important species were the echinoderms Asterias amurensis ( percent of the total biomass) and Leptasterias polaris aceruata ( percent) and the moWuskNeptunea heros ( percent). The 0-40 m depth stratum was dominated by Asterias amurensis and Neptunea heros; deeper stations, >40-100 m, had higher concentrations of. 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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