Record Display for the EPA National Library CatalogRECORD NUMBER: 1 OF 7
|Main Title||Biomass and density of macrobenthic invertebrates on the U.S. continental shelf off Martha's Vineyard, Mass., in relation to environmental factors /|
|CORP Author||United States. National Marine Fisheries Service.|
|Publisher||U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service,|
|Subjects||Invertebrates--Environmental aspects--Georges Bank ; Benthos--Effect of water pollution on--Georges Bank ; Territorial waters--Environmental aspects--North Atlantic Ocean|
|Collation||iv, 20 pages : illustrations, maps ; 27 cm.|
"July 1984." Includes bibliographical references (pages 12-13).
The mean density and mean biomass of macrobenthis invertebrates on the U.S. continental shelf off Martha's Vineyard, Mass., were 3,008/mp1s and 245.7 g/mp2s, respectively. The latter estimate was considerably higher than values from the North Sea, Scotian Shelf, and Middle-Atlantic Bight. Molluscs (pelecypods and gastropods) and echinoderms (echinoids and ophiuroids) greatly influenced patterns of total biomass distribution. The ocean quahog, Arctica islandica, was the dominant species in terms of biomass. Total density was dominated by crustaceans (amphipods), polychaetous annelids, molluscs, (small pelecypods), and echinoderms (ophiuroids).