@article{oai:nipr.repo.nii.ac.jp:00010225, author = {Swadling, Kerrie M. and Penot, Florian and Vallet, Carole and Rouyer, Armelle and Gasparini, Sephane and Mousseau, Laure and Smith, Martina and Goffart, Anne and Koubbi, Philippe and Swadling, Kerrie M. and Penot, Florian and Vallet, Carole and Rouyer, Armelle and Gasparini, Sephane and Mousseau, Laure and Smith, Martina and Goffart, Anne and Koubbi, Philippe}, issue = {2}, journal = {Polar science, Polar science}, month = {Aug}, note = {Spatial and temporal variability of zooplankton was studied during five summers (2004–2008) in the Dumont d'Urville Sea, east Antarctica. The species recorded, based on the catch of a 500 μm-mesh Bongo net, were typical of southern continental shelf communities in Antarctica, including Euphausia crystallorophias, polychaetes, pteropods and biomass-dominant copepods. There was a strong degree of temporal variation in abundance, possibly related to the thickness and extent of the sea ice cover during each spring prior to the surveys. Total mean abundance was highly variable between years, with a minimum of 961 ind. 1000 m−3 in 2004 (range 65–3407 ind. 1000 m−3) and a maximum of 15,627 ind. 1000 m−3 in 2005 (range 5109–33,869 ind. 1000 m−3). Spatially, within each year, abundances were also variable, and there were no uniform patterns in abundance from year to year. Water column physical characteristics (temperature and salinity) were relatively constant and did not contribute substantially to variation between the years. It is likely that variation in zooplankton distribution was largely related to a combination of localised features, such as the thickness and extent of sea ice cover, the position and extent of the Mertz Polynya, local wind conditions and bathymetric features., 2004-2008年の夏季に東南極デュモンデュルビル海において動物プランクトンの時空間変動を調査した。Bongoネット(メッシュサイズ:500μm)で採集された試料にはオキアミ類のEuphausia crystallorophias、多毛類、翼足類、そして生物量で優占したカイアシ類が含まれており、南極沿岸域に見られる典型的な群集組成であった。現存量の空間変動は調査直前の春季における海氷の厚さや大きさとの関係性が見出された。全平均個体数は大きな年変動を示し、2004年に最小値(961 ind./1000m3)、2005年に最大値(15,627 ind./1000m3)を記録した。各年、現存量の空間分布は変動を示したが、物理環境(水温や塩分)は比較的安定しており、変動要因とは考えられなかった。変動要因は主に海氷の厚さと拡がり、Mertzポリニアの位置や大きさといった局所的な特徴の組み合わせによると示唆された。}, pages = {118--133}, title = {Interannual variability of zooplankton in the Dumont d'Urville sea (139°E - 146°E), east Antarctica, 2004-2008}, volume = {5}, year = {2011} }