Reorganization of Southern ocean plankton ecosystem at the onset of antarctic glaciation

Integrated Ocean Drilling Program Expedition 318 Scientists, Sandra P. Passchier

Research output: Contribution to journalArticleResearchpeer-review

54 Citations (Scopus)

Abstract

The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. However, the mechanisms underlying the installation of this distinct ecosystem and the geological timing of its development remain unknown. Here, we show, on the basis of fossil marine dinoflagellate cyst records, that a major restructuring of the Southern Ocean plankton ecosystem occurred abruptly and concomitant with the first major Antarctic glaciation in the earliest Oligocene (∼33.6 million years ago). This turnover marks a regime shift in zooplankton-phytoplankton interactions and community structure, which indicates the appearance of eutrophic and seasonally productive environments on the Antarctic margin. We conclude that earliest Oligocene cooling, ice-sheet expansion, and subsequent sea-ice formation were important drivers of biotic evolution in the Southern Ocean.

Original languageEnglish
Pages (from-to)341-344
Number of pages4
JournalScience
Volume340
Issue number6130
DOIs
StatePublished - 19 Apr 2013

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Plankton
Ice Cover
Oceans and Seas
Ecosystem
Zooplankton
Dinoflagellida
Phytoplankton
Food Chain
Cysts
Carbon

Cite this

Integrated Ocean Drilling Program Expedition 318 Scientists, & Passchier, S. P. (2013). Reorganization of Southern ocean plankton ecosystem at the onset of antarctic glaciation. Science, 340(6130), 341-344. https://doi.org/10.1126/science.1223646
Integrated Ocean Drilling Program Expedition 318 Scientists ; Passchier, Sandra P. / Reorganization of Southern ocean plankton ecosystem at the onset of antarctic glaciation. In: Science. 2013 ; Vol. 340, No. 6130. pp. 341-344.
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Integrated Ocean Drilling Program Expedition 318 Scientists & Passchier, SP 2013, 'Reorganization of Southern ocean plankton ecosystem at the onset of antarctic glaciation', Science, vol. 340, no. 6130, pp. 341-344. https://doi.org/10.1126/science.1223646

Reorganization of Southern ocean plankton ecosystem at the onset of antarctic glaciation. / Integrated Ocean Drilling Program Expedition 318 Scientists; Passchier, Sandra P.

In: Science, Vol. 340, No. 6130, 19.04.2013, p. 341-344.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Bohaty, Steven M.

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AU - Sugisaki, Saiko

AU - Tauxe, Lisa

AU - Van De Flierdt, Tina

AU - Olney, Matthew

AU - Sangiorgi, Francesca

AU - Sluijs, Appy

AU - Escutia, Carlota

AU - Brinkhuis, Henk

AU - Brinkhuis, Henk

AU - Dotti, Carlota Escutia

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AU - Fehr, Annick

AU - Fehr, Annick

AU - Williams, Trevor

AU - Bendle, James A.P.

AU - Bijl, Peter K.

AU - Bohaty, Steven M.

AU - Carr, Stephanie A.

AU - Dunbar, Robert B.

AU - Gonzalez, Jhon J.

AU - Hayden, Travis G.

AU - Iwai, Masao G.

AU - Jimenez-Espejo, Francisco J.

AU - Katsuki, Kota

AU - Kong, Gee Soo

AU - McKay, Robert M.

AU - Nakai, Mutsumi

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AU - Passchier, Sandra P.

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AU - Pekar, Stephen F.

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AU - Riesselman, Christina R.

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AU - Stickley, Catherine E.

AU - Sugisaki, Saiko

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AU - Welsh, Kevin

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Integrated Ocean Drilling Program Expedition 318 Scientists, Passchier SP. Reorganization of Southern ocean plankton ecosystem at the onset of antarctic glaciation. Science. 2013 Apr 19;340(6130):341-344. https://doi.org/10.1126/science.1223646