MOCNESS Zooplankton data collected at 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 to the New England Shelfbreak in April 2018 and May/July2019

As part of the Shelfbreak Productivity Interdisciplinary Research Operation at the Pioneer Array (SPIROPA) Project, zooplankton were sampled at selected stations and depths using a Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS). Twelve stations were sampled on each of three research cruises (AR29 in April of 2018, RB19-04 in May 2019 and TN368 July of 2019) in the Middle Atlantic Bight shelfbreak. Samples were then transferred to one-liter jars and preserved in approximately 10% formalin:seawater solutions for later microscopic analyses ashore. At the shore-based laboratory, samples were drained through 64 µm-mesh sieves for removal of formalin:seawater and concentrated zooplankton were transferred to 70% ethanol for microscopic identification and enumeration.