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Zooplankton abundance and biomass size spectra in the East Antarctic sea-ice zone during the winter–spring transition


Wallis, JR and Swadling, KM and Everett, JD and Suthers, IM and Jones, HJ and Buchanan, PJ and Crawford, CM and James, LC and Johnson, R and Meiners, KM and Virtue, P and Westwood, K and Kawaguchi, S, Zooplankton abundance and biomass size spectra in the East Antarctic sea-ice zone during the winter-spring transition, Deep-Sea Research: Part II, 131 pp. 170-181. ISSN 0967-0645 (2016) [Refereed Article]

Copyright Statement

Copyright 2015 Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.dsr2.2015.10.002


Sea ice is an influential feature in Southern Ocean-Antarctic marine environments creating a 2-phase vertical ecosystem. The lack of information on how this system influences community structure during the winter-spring transition, however, is largely lacking. Zooplankton form the link that bridges these environments, with the meiofaunal and algal communities within sea ice directly influencing the epipelagic zooplankton community at the ice-water interface. A combination of methods including sea-ice coring, umbrella net sampling and Laser Optical Plankton Counter were used to describe the vertical structure of zooplankton and meiofaunal communities. The distribution of meiofauna and chlorophyll a both played important roles in structuring the zooplankton community within this dynamic region. Many dominant taxa, including Calanus propinquus and Oithona similis, directly responded to the high availability of algae present within the bottom strata of sea ice. The sea-ice associated species Stephos longipes represented a strong link between this 2-phase ecosystem. Observations of the vertical distribution of biomass obtained from the LOPC suggests that the responses of these species to the sea ice directly influences the vertical structure of zooplankton during the winter-spring transition.

Item Details

Item Type:Refereed Article
Keywords:Antarctica; Sea ice, cryo-pelagic coupling, Calanus propinquus, Oithona similis, Stephos longipes, optical plankton counter
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Biological oceanography
Objective Division:Environmental Management
Objective Group:Management of Antarctic and Southern Ocean environments
Objective Field:Antarctic and Southern Ocean oceanic processes
UTAS Author:Wallis, JR (Mr Jake Wallis)
UTAS Author:Swadling, KM (Associate Professor Kerrie Swadling)
UTAS Author:Jones, HJ (Mr Hugh Jones)
UTAS Author:Buchanan, PJ (Mr Pearse Buchanan)
UTAS Author:Crawford, CM (Dr Christine Crawford)
UTAS Author:James, LC (Ms Lainey James)
UTAS Author:Johnson, R (Dr Robert Johnson)
UTAS Author:Meiners, KM (Dr Klaus Meiners)
UTAS Author:Virtue, P (Associate Professor Patti Virtue)
UTAS Author:Kawaguchi, S (Dr So Kawaguchi)
ID Code:104390
Year Published:2016 (online first 2015)
Web of Science® Times Cited:13
Deposited By:Oceans and Cryosphere
Deposited On:2015-11-11
Last Modified:2017-10-31

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