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![Figure 29 ship4095.jpg Figure 29](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4095.jpg?itok=1Tz_EiLU)
Description
Figure 29. Marsh net devised by C. Dwight Marsh in 1893. Left: view of theapparatus before closing. Upper right: view of the closed mechanism. Lowerright: detail of the closing mechanism. This net was used for plankton sampling in lakes. It was first tested in Green Lake, Wisconsin, U. S. A., in 1893. (Image credit: Oceanographic Museum of Monaco | Left and)