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Recent Changes in Phytoplankton Communities Associated with Rapid Regional Climate Change Along the Western Antarctic Peninsula

Montes-Hugo, Martin, Doney, Scott C., Ducklow, Hugh W., Fraser, William, Martinson, Douglas, Stammerjohn, Sharon E., Schofield, Oscar·2009·Science

Abstract

The climate of the western shelf of the Antarctic Peninsula (WAP) is undergoing a transition from a cold-dry polar-type climate to a warm-humid sub-Antarctic–type climate. Using three decades of satellite and field data, we document that ocean biological productivity, inferred from chlorophyll a concentration (Chl a), has significantly changed along the WAP shelf. Summertime surface Chl a (summer integrated Chl a ∼63% of annually integrated Chl a) declined by 12% along the WAP over the past 30 years, with the largest decreases equatorward of 63°S and with substantial increases in Chl a occurring farther south. The latitudinal variation in Chl a trends reflects shifting patterns of ice cover, cloud formation, and windiness affecting water-column mixing. Regional changes in phytoplankton coincide with observed changes in krill ( Euphausia superba ) and penguin populations.

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Metadata

Authors
Montes-Hugo, M., Doney, S. C., Ducklow, H. W., Fraser, W., Martinson, D., Stammerjohn, S. E., & Schofield, O.
Venue
Science
Published
2009-03-13
Volume
323
Issue
5920
Pages
1470-1473
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2161668461
Cited by
737
References
2
FWCI
32.40
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Recent Changes in Phytoplankton Communities Associated with Rapid Regional Climate Change Along the Western Antarctic Peninsula. https://app.cochat.ai/papers/10.1126/science.1164533
The paper
Montes-Hugo, M., Doney, S. C., Ducklow, H. W., Fraser, W., Martinson, D., Stammerjohn, S. E., & Schofield, O. (2009). Recent Changes in Phytoplankton Communities Associated with Rapid Regional Climate Change Along the Western Antarctic Peninsula. Science. https://doi.org/10.1126/science.1164533

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