@article{oai:nipr.repo.nii.ac.jp:00010237, author = {Causse, Romain and Ozouf-Costaz, Catherine and Koubbi, Philippe and Lamy, Dominique and Eleaume, Marc and Dettai, Agnes and Duhamel, Guy and Busson, Frederic and Pruvost, Patrice and Post, Alexandra and Beaman, Robin J. and Riddlei, Martin J. and Causse, Romain and Ozouf-Costaz, Catherine and Koubbi, Philippe and Lamy, Dominique and Eleaume, Marc and Dettai, Agnes and Duhamel, Guy and Busson, Frederic and Pruvost, Patrice and Post, Alexandra and Beaman, Robin J. and Riddlei, Martin J.}, issue = {2}, journal = {Polar science, Polar science}, month = {Aug}, note = {The RSV Aurora Australis survey allowed the first comprehensive study of the demersal ichthyofaunal environment and of the diversity of the Dumont d'Urville Sea. We observed a high dominance of the Notothenioidei in both the number of species and in integrated abundances. The Nototheniidae was the most abundant family with 44.7% of the total integrated abundance, followed by Bathydraconidae (18.8%). Trematomus eulepidotus was the dominant species with 19.9% of the total individuals catch. Nevertheless, 43 of the 53 species caught could be considered as very rare. The Bathydraconidae was the most diversified family with 11 species caught. The highest integrated abundances of fish were found from 400 to 800 m. Well-structured species communities were observed, with high species richness from 570 to 681 m. The richest zones were located along the basins and along their upper-sides. Statistical analyses indicated large-scale spatial patterns in species composition, with clear differences in fish communities from the continental slopes, the basins and on the shelf. At a finer spatial scale, the current in the George V Basin and iceberg scouring on the banks and their sides tended to create locally heterogeneous small-scale habitats. We suggest that the glacial history and the structured habitats allowed successive colonisations of the seabed by demersal fish., Dumont d’Urville Seaで底生性魚類相を調査したところ,個体数密度はノトセニア科が最も高く,それに次いでバシドラコ科が多かった。バシドラコ科は最も多様性が高く11種が採集された。明確な群集構造が認められ,種の豊度は570~681 mで最も高かった。種組成は,陸棚上と海盆とで大きく分けられ,陸棚斜面ともはっきり異なっていた。細かいスケールでみると,George V Basinの海流と堆やその側面における氷山の海底研磨によって様々な生息環境が作られると考えられた。}, pages = {272--285}, title = {Demersal ichthyofaunal shelf communities from the Dumont d'Urville Sea (East Antarctica)}, volume = {5}, year = {2011} }