Reports

Spatial Scales of Current Speed and Phytoplankton Biomass Fluctuations in Lake Tahoe

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Science  26 Sep 1975:
Vol. 189, Issue 4208, pp. 1088-1090
DOI: 10.1126/science.189.4208.1088

Abstract

Spectral analysis of current speed and chlorophyll a measurements in Lake Tahoe, California and Nevada, indicates that considerably more variance exists at longer length scales in chlorophyll than in the current speeds. Increasingly, above scales of approximately 100 meters, chlorophyll does not behave as a simple passive contaminant distributed by turbulence, which indicates that biological processes contribute significantly to the observed variance at these large length scales.

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