Abstract
Spires or humps of particulate material extending from the bottom of the oceanic mixed layer to near the ocean's surface have been observed in the Florida Current and in the regions of other current systems, using an ultrasensitive, 20-kHz acoustical echo sounding system. These spires may be the result of oceanic circulation rather than a purely biological phenomenon.
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Proni, J., Newman, F., Ostapoff, F. et al. Vertical particulate spires or walls within the Florida Current and near the Antilles Current. Nature 276, 360–362 (1978). https://doi.org/10.1038/276360a0
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DOI: https://doi.org/10.1038/276360a0
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