Effect of a kelp forest on coastal currents |
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| Authors: | George A Jackson Clinton D Winant |
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| Institution: | 1. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, U.S.A. |
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| Abstract: | Ocean currents supply a kelp ecosystem with nutrients, planktonic food, and larvae. We have found that these currents in a kelp forest (Macrocystis pyrifera) are slower than currents outside. At the Pt. Loma, San Diego, California, site that we studied, current velocities were about a third of those outside. A comparison of frequency spectra shows that semi-diurnal frequencies are preferentially passed by the kelp. This effect of a kelp forest on the currents that nurture it is similar to that of a terrestrial forest on local winds. |
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