Climatic Warming and the Decline of Zooplankton in the California Current

  title={Climatic Warming and the Decline of Zooplankton in the California Current},
  author={D. Roemmich and J. McGowan},
  pages={1324 - 1326}
  • D. Roemmich, J. McGowan
  • Published 1995
  • Medicine
  • Science
  • Since 1951, the biomass of macrozooplankton in waters off southern California has decreased by 80 percent. During the same period, the surface layer warmed—by more than 1.5�C in some places—and the temperature difference across the thermocline increased. Increased stratification resulted in less lifting of the thermocline by wind-driven upwelling. A shallower source of upwelled waters provided less inorganic nutrient for new biological production and hence supported a smaller zooplankton… CONTINUE READING
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