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Chlorophyll a in Antarctic sea ice from historical ice core data


Meiners, KM and Vancoppenolle, M and Thanassekos, S and Dieckmann, GS and Thomas, DN and Tison, J-L and Arrigo, KR and Garrison, DL and McMinn, A and Lannuzel, D and Van Der Merwe, P and Swadling, KM and Smith Jr, WO and Melnikov, I and Raymond, B, Chlorophyll a in Antarctic sea ice from historical ice core data, Geophysical Research Letters, 39, (21) Article L21602. ISSN 0094-8276 (2012) [Refereed Article]


Copyright Statement

Copyright 2012 American Geophysical Union

DOI: doi:10.1029/2012GL053478


Sea ice core chlorophyll a data are used to describe the seasonal, regional and vertical distribution of algal biomass in Southern Ocean pack ice. The Antarctic Sea Ice Processes and Climate Biology (ASPeCt Bio) circumpolar dataset consists of 1300 ice cores collected during 32 cruises over a period of 25 years. The analyses show that integrated sea ice chlorophyll a peaks in early spring and late austral summer, which is consistent with theories on light and nutrient limitation. The results indicate that on a circum-Antarctic scale, surface, internal and bottom sea ice layers contribute equally to integrated biomass, but vertical distribution shows distinct differences among six regions around the continent. The vertical distribution of sea ice algal biomass depends on sea ice thickness, with surface communities most commonly associated with thin ice (<0.4 m), and ice of moderate thickness (0.41.0 m) having the highest probability of forming bottom communities.

Item Details

Item Type:Refereed Article
Keywords:chlorophyll, Antarctic, sea ice
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:Meiners, KM (Dr Klaus Meiners)
UTAS Author:McMinn, A (Professor Andrew McMinn)
UTAS Author:Lannuzel, D (Associate Professor Delphine Lannuzel)
UTAS Author:Van Der Merwe, P (Dr Pier van der Merwe)
UTAS Author:Swadling, KM (Associate Professor Kerrie Swadling)
UTAS Author:Raymond, B (Dr Ben Raymond)
ID Code:80962
Year Published:2012
Web of Science® Times Cited:74
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2012-11-19
Last Modified:2013-06-18
Downloads:387 View Download Statistics

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