Plankton Changes on the Coast of Ecuador


I HOPE some oceanographer will be prompted to write at length some explanation (1) of the erratic behaviour of El Niño and (2) of the lenses of foul yellow water of which Mr. G. Sheppard writes in NATURE of April 25. May I make two suggestions?

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SEMPLE, W. Plankton Changes on the Coast of Ecuador. Nature 127, 743 (1931).

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