As part of the Shelfbreak Productivity Interdisciplinary Research Operation at the Pioneer Array (SPIROPA) Project, twelve grazing experiments utilizing the two-point dilution technique were conducted during each of three research cruises (April of 2018, and May and July of 2019) in the Middle Atlantic Bight to estimate microzooplankton grazing rates and net phytoplankton growth rates. Stations where the dilution experiments were conducted were strategically located in one of three key cross-she...
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Daily Microzooplankton Grazing 2-Point Dilution 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.
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. The two dilution treatments were 100% of <200 µm filtered water and 10% of <200 µm water. Station water filtered through a Whatman 1.2 µm glass fiber filter was used as dilution water for the 10% treatment.
Turner, J., Petitpas, C., Zhang, W. G., McGillicuddy, D. J. (2025) Shipboard Plankton Dilution Experiment Chlorophyll collected at the mid-Atlantic Bight Shelfbreak on R/V Neil Armstrong AR29, R/V Ronald H. Brown RB1904 and R/V Thomas G. Thompson TN368 to the New England Shelfbreak in April 2018 and and May/July 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-05-14 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.961794.1 [access date]
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