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https://www.noaa.gov/media/digital-library-photo/pl23ship4096jpgDescription
Figure 30. Closing device of the Apstein closing net. Left: open. Right:closed. Devised by Carl Apstein in 1903 and used in the North Sea. This wasused for quantitative plankton studies and was first used in the North Sea in1903. (Image credit: Oceanographic Museum of Monaco | Y. Berard)
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