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Oceanography in 2025 Proceedings of a Workshop (2009) / Chapter Skim
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Research on Higher Trophic Levels--Daniel P. Costa, Yann Tremblay, and Sean Hayes
Pages 124-129

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 124...
... Yann Tremblay,† Sean Hayes‡ Our understanding of the mechanisms responsible for biophysical coupling in marine ecosystems has developed significantly over the last two decades, but is limited to the mechanisms that relate physical oceanographic processes to primary production and primary consumers (zooplankton)
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From page 125...
... Integration of oceanographic data with marine animal distribution and behavior can be used to build models that describe the interrelationships of marine animal movements to their physical and ecological habitat. Such a modeling approach would provide an "experimental test bed" to examine the processes that determine animal distributions, local abundance and movement patterns.
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From page 126...
... Conceptually, this seems very straightforward, but the development of reliable power harvesting systems has not begun. Other sensors that could be added to the tags include FIGURE 2  Tracks of southern elephant seals showing the range of data that can be derived.
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From page 127...
... FIGURE 3  Left: tracks of 12 southern elephant seals instrumented with ARGOS linked CTD tags. Right Top: a close up showing the actual profiles data collected; Right Middle: a close up of the temperature profiles that can be interpolated from those casts; Right Bottom: a close up of the conductivity profiles that can be interpolated from those casts.
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From page 128...
... However, for juvenile salmon which reliably return to a river of origin where they can be predictably captured, marine survival rates are only 2-5%, making the cost of deploying archival tags prohibitive. As a result, acoustic technologies have moved to the forefront of marine fisheries movement research.
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From page 129...
... 2008. Upper Ocean Variability in West Antarctic Peninsula Continental Shelf Waters as Measured Using Instrumented Seals.
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Key Terms

  • elephant seals
  • marine organisms
  • marine animal
  • southern elephant
  • animal behavior

  • larger marine
  • habitat utilization
  • movement patterns
  • continental shelf
  • marine habitats

  • oceanographic features
  • oceanographic data
  • utilization patterns
  • elephant seal
  • larger bct

  • help elucidate
  • reliably return
  • inexpensive acoustic
  • animal swims
  • limits satellite

  • dive behavior
  • tracking marine
  • upper trophic
  • broad expanses
  • including oceanographic

  • predictably captured
  • fisheries science
  • surface track
  • carry additional
  • primary production


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