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

  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},
  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… 

Inter-decadal variability of phytoplankton biomass along the coastal West Antarctic Peninsula

  • H. KimH. Ducklow I. Schloss
  • Environmental Science
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2018
Analysis of inter-decadal time series of year-round chlorophyll-a collected from three stations along the West Antarctic Peninsula highlights a coupled link between phytoplankton and physical and climate dynamics along the coastal WAP, which may improve understanding of overall WAP food-web responses to climate change and variability.

Changes in the upper ocean mixed layer and phytoplankton productivity along the West Antarctic Peninsula

It is hypothesized the increase in sea ice results in increased micronutrient delivery to the continental shelf which in turn leads to enhanced photosynthetic performance, which would lead to enhanced phytoplankton productivity.

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Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem

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Polar regions are warming more rapidly than lower latitudes, and climate models predict that this trend will continue into the coming decades. Despite these observations and predictions, relatively



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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. DucklowK. Baker W. Fraser
  • Environmental Science
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2006
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

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

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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

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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