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Science 21 January 1983:
Vol. 219. no. 4582, pp. 292 - 295
DOI: 10.1126/science.219.4582.292
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Articles

Autotrophic Picoplankton in the Tropical Ocean

W. K. W. LI 1, D. V. SUBBA RAO 1, W. G. HARRISON 1, J. C. SMITH 1, J. J. CULLEN 1, B. IRWIN 1, and T. PLATT 1

1 Marine Ecology Laboratory, Bedford Institute of Oceanography, Dartmouth, Nova Scotia B2Y 4A2 Canada

In phytoplankton of the eastern tropical Pacific Ocean from 25 to 90 percent of the biomass (measured as chlorophyll a) and 20 to 80 percent of the inorganic carbon fixation were attributable to particles that could pass a screen with a 1-micrometer pore diameter. Evidence is presented that these are indeed autotrophic cells and not cell fragments.

Submitted on September 8, 1982


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