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Science 2 October 1987:
Vol. 238. no. 4823, pp. 70 - 72
DOI: 10.1126/science.238.4823.70
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Articles

Climate and Chlorophyll a: Long-Term Trends in the Central North Pacific Ocean

E. L. VENRICK 1, J. A. MCGOWAN 1, D. R. CAYAN 1, and T. L. HAYWARD 1

1 Scripps Institution of Oceanography, La Jolla, CA 92093.

Since 1968 a significant increase in total chlorophyll a in the water column during the summer in the central North Pacific Ocean has been observed. A concomitant increase in winter winds and a decrease in sea surface temperature suggest that long-period fluctuations in atmospheric characteristics have changed the carrying capacity of the central Pacific epipelagic ecosystem.

Submitted on March 9, 1987
Accepted on July 14, 1987


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