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

@article{MontesHugo2009RecentCI,
  title={Recent Changes in Phytoplankton Communities Associated with Rapid Regional Climate Change Along the Western Antarctic Peninsula},
  author={Martin A. Montes-Hugo and Scott C. Doney and Hugh W. Ducklow and William R. Fraser and Douglas G. Martinson and Sharon E. Stammerjohn and Oscar Schofield},
  journal={Science},
  year={2009},
  volume={323},
  pages={1470 - 1473}
}
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… 
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References

SHOWING 1-10 OF 31 REFERENCES
Phytoplankton spatial distribution patterns along the western Antarctic Peninsula (Southern Ocean)
TLDR
Large-scale variability in phytoplankton structure is related to water column physical conditions and possibly iron availability, while mesoscale variability, as seen in coastal waters, is more likely due to seasonal succession of different algae groups.
Marine pelagic ecosystems: the West Antarctic Peninsula
  • H. Ducklow, K. Baker, W. Fraser
  • Environmental Science
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2006
TLDR
The marine ecosystem of the West Antarctic Peninsula is one among the most rapidly warming regions on Earth, having experienced a 2°C increase in the annual mean temperature and a 6°C rise in the mean winter temperature since 1950.
High Latitude Changes in Ice Dynamics and Their Impact on Polar Marine Ecosystems
TLDR
Recent changes and trends in ice dynamics and the responses of marine ecosystems are reviewed and examples of ice‐dependent organisms and associated species from the Arctic and Antarctic are provided to illustrate the impacts of the temporal and spatial changes inIce dynamics.
Variations of surface air temperature and sea-ice extent in the western Antarctic Peninsula region
Abstract The western Antarctic Peninsula (WAP) region has experienced a statistically significant warming trend during the past half-century. In addition, a statistically significant anticorrelation
Early Holocene retreat of the George VI Ice Shelf, Antarctic Peninsula
The recent collapse of several Antarctic Peninsula ice shelves has been linked to rapid regional atmospheric warming during the twentieth century. New high-resolution lake sediment records of
Water column sediment fluxes in the Ross Sea, Antarctica: Atmospheric and sea ice forcing
We measured time series of the vertical particle flux at three locations in the Ross Sea, Antarctica, between January 1990 and February 1992 as part of an interdisciplinary project focusing on the
Decadal changes in global ocean chlorophyll
The global ocean chlorophyll archive produced by the CZCS was revised using compatible algorithms with SeaWiFS. Both archives were then blended with in situ data to reduce residual errors. This
...
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