Ian Smith (left) and WHOI Corporator Barbara Wu (right) help associate scientist Mark Baumgartner deploy a video plankton recorder (VPR) from the fantail of R/V Tioga. Baumgartner and assistant scientist Gareth Lawson study zooplankton and their relationship to marine megafauna such as whales and tuna. The VPR allows them to quickly measure the distribution of…