Dataset: Shipboard grazing experiment phytoplankton data from the mid-Atlantic Bight Shelfbreak on R/V Neil Armstrong cruise AR29, R/V Ronald H. Brown cruise RB1904 and R/V Thomas G. Thompson cruise TN368 in April 2018 and May/July2019

Daily zooplankton Grazing Experiments were conducted on each of three cruises as a component of the SPIROPA project. 12 experiments/Cruise, Targeting 3 water mass regimes: shelf, shelfbreak front and slope waters. CTD/Niskin bottle rosette equipped with a SBE 911 plus CTD system, and twenty-four 10 L Niskin bottles fitted with Teflon-coated external closures were used for water column sampling. 

Grazing experiment sample water was collected with a CTD/Niskin bottle rosette at depths ranging from surface to 56m, targeting chl-a max if present. Two experimental treatments were treatments were incubated: 1. whole water to represent the entire plankton community and <200 µm fraction of plankton community to estimate microzooplankton grazing impact.