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A study on octopodids from the eastern Weddell Sea, Antarctica
Allcock, A.L.; Piatkowski, U.; Rodhouse, P.G.; Thorpe, J.P. (2001). A study on octopodids from the eastern Weddell Sea, Antarctica. Polar Biol. 24(11): 832-838. dx.doi.org/10.1007/s003000100288
In: Polar Biology. Springer-Verlag: Berlin; Heidelberg. ISSN 0722-4060; e-ISSN 1432-2056
Is gerelateerd aan:
Allcock, A.L.; Piatkowski, U.; Rodhouse, P.G.; Thorpe, J.P. (2002). A study on octopodids from the eastern Weddell Sea, Antarctica, in: Arntz, W.E. et al. (Ed.) Ecological studies in the Antarctic sea ice zone: results of EASIZ Midterm Symposium. pp. 17-23, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Classification > Taxonomy
    Composition > Community composition
    Distribution > Geographical distribution
    PSW, Weddell Sea
    Cephalopoda [WoRMS]; Octopoda [WoRMS]; Pareledone G. C. Robson, 1932 [WoRMS]
    Weddell Sea [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Allcock, A.L.
  • Piatkowski, U.
  • Rodhouse, P.G.
  • Thorpe, J.P.
Abstract
    A comprehensive study of octopodids in the Weddell Sea was conducted during cruise ANT XIII/3 of RV Polarstern. The study yielded eight species of incirrate octopodids, three of which were undescribed. There appeared to be no differences in octopodid species assemblage in the two sampling areas (Kapp Norvegia and south of Drescher Inlet), supporting the theory that there is a single macrobenthic assemblage on the eastern shelf of the Weddell Sea. Six of the octopodid species belonged to the genus Pareledone, illustrating the extensive radiation of this endemic genus within the Southern Ocean. The fragmented nature of suitable habitats and disturbance caused by glaciation cycles are proposed as mechanisms for this radiation. Comparative data illustrate that both the number of octopodid species present and their abundance are greater at higher latitudes than close to the Antarctic Polar Frontal Zone.
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