Engineer Josh Eaton (lower left), biologist Cabell Davis (upper left), and postdoctoral scholar Qiao Hu maneuver the Video Plankton Recorder (VPR) for calibration testing in a tank in a Woods Hole shop. Davis and colleagues later took the VPR out into the Atlantic to observe plankton blooms in mid-ocean eddies. (Photo by Tom Kleindinst, Woods…