Recent Changes in Phytoplankton Communities Associated with Rapid Regional Climate Change Along the Western Antarctic Peninsula-Reference-Cited by-同舟云学术

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

Published:2009-03-13 Issue:5920 Volume:323 Page:1470-1473
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Montes-Hugo Martin¹²³⁴⁵,Doney Scott C.¹²³⁴⁵,Ducklow Hugh W.¹²³⁴⁵,Fraser William¹²³⁴⁵,Martinson Douglas¹²³⁴⁵,Stammerjohn Sharon E.¹²³⁴⁵,Schofield Oscar¹²³⁴⁵

Affiliation:

1. Coastal Ocean Observation Lab, Institute of Marine and Coastal Sciences, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901, USA.

2. Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.

3. The Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA.

4. Polar Oceans Research Group, Post Office Box 368, Sheridan, MT 59749, USA.

5. Lamont-Doherty Earth Institute, Palisades, NY 10964, USA.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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