Physical controls on the benthic biomass in Barrow Canyon, Chukchi Sea

Details

• Journal Title:
  Journal of Geophysical Research: Oceans
• Personal Author:
  Pickart, Robert S. ; Spall, Michael A. ; Lin, Peigen ; Bahr, Frank ; McRaven, Leah T. ; Arrigo, Kevin R. ; Grebmeier, Jacqueline M.
• NOAA Program & Office:
  OAR (Oceanic and Atmospheric Research) ; CINAR (Cooperative Institute for the North Atlantic Region)
• Description:
  A region of exceptionally high macrofaunal benthic biomass exists in Barrow Canyon, implying a carbon export process that is locally concentrated. Here we offer an explanation for this benthic “hotspot” using shipboard data together with a set of dynamical equations. Repeat occupations of the Distributed Biological Observatory transect in Barrow Canyon reveal that when the northward flow is strong and the density front in the canyon is sharp, plumes of fluorescence and oxygen extend from the pycnocline to the seafloor in the vicinity of the hotspot.
• Keywords:
  Benthos Biomass Submarine Valleys Submarine Valleys
• Source:
  Journal of Geophysical Research: Oceans, 126(5)
• DOI:
  https://doi.org/10.1029/2020JC017091
• Document Type:
  Journal Article
• Funding:
  Grant no. NA14OAR4320158 ; Grant no. NA19OAR4320074
• Place as Subject:
  Barrow Canyon ; Chukchi Sea ; Arctic Coast (Alaska)
• Rights Information:
  Other
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha256:b12b91ed6b21ec4ef725d2963de3c299e4aa513f1161f9f0ee0a85e34aa5c3fe
• Download URL:
  https://repository.library.noaa.gov/view/noaa/33489/noaa_33489_DS1.pdf
• File Type:
  [PDF - 6.70 MB ]