pl23_ship4080.jpg

Figure 15

Image

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https://www.noaa.gov/media/digital-library-photo/pl23ship4080jpg

Description

Figure 15. Zacharias ethmophore plankton filter devised by Otto Zacharias in1907. Top: view of the assembled apparatus. Bottom: internal speed reductionvalve. This instrument was devised to collect plankton under adverse meteorological conditions where normal net-towing operations became impossible. This instrument was first used in a lake, but then in the Mediterranean and Tyrhennian.

Credit

Oceanographic Museum of Monaco

Photographer

D. Mille

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