Woods Hole Oceanographic Institution

A video Plankton Recorder (VPR) ready for deployment.   The VPR is essentially an underwater microscope. A video camera mounted in one of the arms focuses on a point midway between the two arms. A strobe on the other arm illuminates the imaged volume and flashes 60 times per second, producing 60 images per second of the particles and plankton in the water. The images are then saved internally on a computer hard disk and later plotted.

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