National Oceanic and Atmospheric Administration (NOAA) Fisheries Service 1 article published in JoVE Environment Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea Eve Galimany1, Julie M. Rose1, Mark S. Dixon1, Robert Alix1, Yaqin Li1, Gary H. Wikfors1 1Northeast Fisheries Science Center (NEFSC), National Oceanic and Atmospheric Administration (NOAA) Fisheries Service A flow-through device for using the biodeposition method to quantify filtration and feeding behavior of bivalve mollusks was modified for shipboard use. A two-dimensional gimbal table built around the device isolates the apparatus from boat motion, thereby allowing the accurate quantification of bivalve filtration variables at offshore shellfish aquaculture sites.