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Distribution patterns and biodiversity in polychaete communities of the Weddell Sea and Antarctic Peninsula area (Southern Ocean)
Hilbig, B.; Gerdes, D.; Montiel, A. (2006). Distribution patterns and biodiversity in polychaete communities of the Weddell Sea and Antarctic Peninsula area (Southern Ocean). J. Mar. Biol. Ass. U.K. 86(4): 711-725
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154, more
Peer reviewed article  

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Keywords
    Biomass; Community composition; Geographical distribution; Habitat; New species; Zoobenthos; Polychaeta [WoRMS]; PSW, Antractica, British Antarctic Terr., Antarctic Peninsula [Marine Regions]; PSW, Weddell Sea [Marine Regions]; Marine

Authors  Top 
  • Hilbig, B.
  • Gerdes, D.
  • Montiel, A.

Abstract
    During the expedition EASIZ II with RV Polarstern in 1998 in a multibox corer yielded 151 quantitative samples from 26 stations between 120 and 2415 m water depth for benthic community analysis. From this material a total of 235 polychaete species out of 37 families was determined. Forty-seven species are new to science. The polychaete fraction contributed 41.9% to total benthic abundance and 6.5% to total benthic biomass at these stations. Overall mean polychaete abundance (ind m-2) and biomass (g wet weight m-2)) at the stations were 1617 and 49, respectively. Multidimensional scaling procedure clearly grouped the stations into south-eastern Weddell Sea shelf stations, deep-water stations, and stations mostly around the Antarctic Peninsula. Differences between these groups existed in terms of polychaete abundance and biomass as well as species composition, diversity, and evenness.

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