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.
4/4/2019 2:00:42 PM
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments