Global phytoplankton decline over the past century

  title={Global phytoplankton decline over the past century},
  author={Daniel G. Boyce and Marlon Lewis and Boris Worm},
In the oceans, ubiquitous microscopic phototrophs (phytoplankton) account for approximately half the production of organic matter on Earth. Analyses of satellite-derived phytoplankton concentration (available since 1979) have suggested decadal-scale fluctuations linked to climate forcing, but the length of this record is insufficient to resolve longer-term trends. Here we combine available ocean transparency measurements and in situ chlorophyll observations to estimate the time dependence of… Expand

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