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Spitsbergen glacial bays macrofauna - a comparative study
Wlodarska-Kowalczuk, M.; Weslawski, J.M.; Kotwicki, L. (1998). Spitsbergen glacial bays macrofauna - a comparative study. Polar Biol. 20: 66-73
In: Polar Biology. Springer-Verlag: Berlin; Heidelberg. ISSN 0722-4060; e-ISSN 1432-2056, meer
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  • Wlodarska-Kowalczuk, M., meer
  • Weslawski, J.M., meer
  • Kotwicki, L., meer
Abstract
    Macrobenthos was studied in seven glacial bays situated along the Spitsbergen coast between 77and 79°N. The fauna was dominated by deposit-feeding or carnivorous polychaetes and bivalves. Only 4 of 118species identified in the collected material occurred in all the west Spitsbergen localities examined (the polychaetes Chaetozone/Tharyx sp., Cossura longocirrata, Lumbrinereis fragilis s.l. (sensu lato), and the bivalve Thyasira exuosa). Clustering of samples showed a differencebetween the faunas of east and west Spitsbergen; the latter formed two subgroups, localities open to Atlanticwaters and those from inner fjord basins. The fauna in open basins was dominated by cosmopolitan species,whereas arctic elements shares were higher in inner basins and predominated in the fauna in Bettybukta (eastSpitsbergen). This indicates arctic, relict character of theinner fjords sites. The biomass ranged from 6 to 310 g/m2 and Shannon diversities from 0.49 to 2.54.
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