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![Figure 56 ship4124.jpg Figure 56](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4124.jpg?itok=3lTIdf23)
Description
Figure 56. Regnard phosphorescent tubes designed by the physiologist PaulRegnard to attract certain marine fish to nets and traps used in biologicalsampling. These tubes were designed about 1888 and used by Prince Albert I ofMonaco with his sampling nets. Left: two-ring model. Right center: one-ringmodel. Bottom: Reflecting plate. (Image credit: Oceanographic Museum of Monaco | Y. Berard)