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![Figure 9 ship4074.jpg Figure 9](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4074.jpg?itok=jHvv1w07)
Description
Figure 9. Cone for use with Hensen conical net. Invented by VictorHensen of the University of Kiel in about 1883. He called this invention Korbnetz. In 1901 he described an improved version that contained a tin-plateenvelope. Between these dates, an intermediate form of this net and cone wasused in the course of the Plankton Expedition of 1889. (Image credit: Oceanographic Museum of Monaco | P. Roggero)