pl23_ship4089.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4089jpgDescription
Figure 23. Kofoid net devised by Charles A. Kofoid of the University of California at Berkeley in 1909. Above: in the functioning position. Lower left: indescent. Lower right: upon ascent. This net sampling system was meant toguarantee the verticality of the cable and sampling at the exact depth desired.It was tested off San Diego in 1909 at 1000 meters depth.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Biologic Sampling Apparatus
Keywords
Oceanography
Historical instruments