Figure 26. Sigsbee gravity driven plankton trap. Devised by Lieutenant Charles D. Sigsbee of the USN on the Coast and Geodetic Survey Ship BLAKE in 1880. It was meant to collect live specimens of plankton between precisely specifieddepths. It was
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Photographer: P. Roggero
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments