Bernard Kim S.

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Bernard
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Kim S.
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  • Article
    Penguin biogeography along the West Antarctic Peninsula : testing the canyon hypothesis with Palmer LTER observations
    (The Oceanography Society, 2013-09) Schofield, Oscar M. E. ; Ducklow, Hugh W. ; Bernard, Kim S. ; Doney, Scott C. ; Patterson-Fraser, Donna ; Gorman, Kristen ; Martinson, Douglas G. ; Meredith, Michael P. ; Saba, Grace ; Stammerjohn, Sharon E. ; Steinberg, Deborah K. ; Fraser, William R.
    The West Antarctic Peninsula (WAP) is home to large breeding colonies of the ice-dependent Antarctic Adélie penguin (Pygoscelis adeliae). Although the entire inner continental shelf is highly productive, with abundant phytoplankton and krill populations, penguin colonies are distributed heterogeneously along the WAP. This ecological conundrum targets a long-standing question of interest: what environmental factors structure the locations of Adélie penguin "hot spots" throughout the WAP?
  • Dataset
    Pyrosome abundances from samples collected off the Oregon Coast on three cruises aboard NOAA Ship Bell M. Shimada during 2018
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-01-22) Bernard, Kim S.
    Pyrosome abundances from samples collected off the Oregon Coast on three cruises aboard NOAA Ship Bell M. Shimada during 2018. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/837652
  • Dataset
    Pyrosome total colony lengths from samples collected off the Oregon Coast on three cruises aboard NOAA Ship Bell M. Shimada during 2018
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-01-22) Bernard, Kim S.
    Pyrosome total colony lengths from samples collected off the Oregon Coast on three cruises aboard NOAA Ship Bell M. Shimada during 2018. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/837617
  • Dataset
    Chlorophyll and phaeopigment data collected off the Oregon Coast on two cruises aboard NOAA Ship Bell M. Shimada during 2018
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-01-22) Bernard, Kim S.
    Chlorophyll and phaeopigment data collected off the Oregon Coast on two cruises aboard NOAA Ship Bell M. Shimada during 2018. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/837587
  • Article
    Metabolic balance of coastal Antarctic waters revealed by autonomous pCO2 and ΔO2/Ar measurements
    (John Wiley & Sons, 2014-10-03) Tortell, Philippe D. ; Asher, Elizabeth C. ; Ducklow, Hugh W. ; Goldman, Johanna A. L. ; Dacey, John W. H. ; Grzymski, Joseph J. ; Young, Jodi N. ; Kranz, Sven A. ; Bernard, Kim S. ; Morel, Francois M. M.
    We use autonomous gas measurements to examine the metabolic balance (photosynthesis minus respiration) of coastal Antarctic waters during the spring/summer growth season. Our observations capture the development of a massive phytoplankton bloom and reveal striking variability in pCO2 and biological oxygen saturation (ΔO2/Ar) resulting from large shifts in community metabolism on time scales ranging from hours to weeks. Diel oscillations in surface gases are used to derive a high-resolution time series of net community production (NCP) that is consistent with 14C-based primary productivity estimates and with the observed seasonal evolution of phytoplankton biomass. A combination of physical mixing, grazing, and light availability appears to drive variability in coastal Antarctic NCP, leading to strong shifts between net autotrophy and heterotrophy on various time scales. Our approach provides insight into the metabolic responses of polar ocean ecosystems to environmental forcing and could be employed to autonomously detect climate-dependent changes in marine primary productivity.
  • Dataset
    CTD data collected off the Oregon Coast on three cruises aboard NOAA Ship Bell M. Shimada during 2018
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-01-22) Bernard, Kim S.
    CTD data collected off the Oregon Coast on three cruises aboard NOAA Ship Bell M. Shimada during 2018. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/837256
  • Dataset
    Pyrosome gut pigment contents from samples collected off the Oregon Coast on two cruises aboard NOAA Ship Bell M. Shimada during 2018
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-01-22) Bernard, Kim S.
    Pyrosome gut pigment contents from samples collected off the Oregon Coast on two cruises aboard NOAA Ship Bell M. Shimada during 2018. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/837640