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Interannual variability of zooplankton in the Dumont d’Urville sea (139°E − 146°E), east Antarctica, 2004–2008


Swadling, KM and Penot, F and Vallet, C and Rouyer, A and Gasparini, S and Mousseau, L and Smith, M and Goffart, A and Koubbi, P, Interannual variability of zooplankton in the Dumont d'Urville sea (139 E − 146 E), east Antarctica, 2004-2008, Polar Science, 5, (2) pp. 118-133. ISSN 1873-9652 (2014) [Refereed Article]

Copyright Statement

Copyright 2011 Elsevier

DOI: doi:10.1016/j.polar.2011.03.001


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.

Item Details

Item Type:Refereed Article
Keywords:sea ice, multivariate, zooplankton, multiannual
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Management of Antarctic and Southern Ocean environments
Objective Field:Biodiversity in Antarctic and Southern Ocean environments
UTAS Author:Swadling, KM (Associate Professor Kerrie Swadling)
UTAS Author:Smith, M (Ms Martina Fallows)
ID Code:96337
Year Published:2014 (online first 2011)
Funding Support:Australian Research Council (DP0209308)
Web of Science® Times Cited:9
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2014-10-31
Last Modified:2017-11-03

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