Abstract
WITH the valuable assistance of Mr. L. A. Borradaile, of Selwyn College, Cambridge, I have just completed a series of observations on the plankton of the Bay of Biscay, extending over about three weeks, by means of opening and closing nets as well as ordinary tow-nets. Our observations point to the fact (unexpected at any rate by myself) that the smaller Mesoplankton practically ceases at a depth of about 1000 fathoms. This conclusion agrees with that reached by Prof. Chun on the basis of the Valdivia Expedition (Deutsche Tiefsee Expedition, 1898–99, p. 44), with which, however, we were unacquainted until we had arrived at it independently. Below this limit we almost always captured a few specimens, as to which it was doubtful whether they were alive when captured, or were merely corpses of a shallower fauna sinking to the bottom, but in a few cases we at present incline to assign them to a living Mesoplankton.
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FOWLER, G. The Plankton of the Bay of Biscay. Nature 62, 317 (1900). https://doi.org/10.1038/062317b0
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DOI: https://doi.org/10.1038/062317b0
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