Dissolved organic matter (DOM) and base-extracted particulate organic matter (BEPOM) collected from a plankton senescence experiment from water samples offshore of North Carolina

<p>A mixed assemblage of natural phytoplankton community collected from waters offshore of North Carolina were used to create planktonic dissolved organic matter (DOM) and particulate organic matter (POM). The latter was extracted with 0.1 M NaOH to create base-extracted POM (BEPOM). Methods are reported in Kinsey et al. (2018) and Osburn et al. (2019).&nbsp;<br />
The medium used was: Natural Assemblage 2x filtered North Atlantic Surface water with f/2 nutrients; Whole water experiment - unfiltered North Atlantic Surface water with f/20 nutrients Irradiance ~70-100 umol photon m-2 s-1 (cool white bulbs); on roller table; diel cycle, 19 °C&nbsp;</p>

<p>Controls:&nbsp; 0.2 um Filtered Sargasso seawater amended with f/2 nutrients; NASW (or WW) unfiltered Sargasso Seawater amended with f/20 nutrients; NASW: Sargasso seawater amended with plankton tow sample and f/2 nutrients.&nbsp; All samples were in 1.9 L bottles with minimal headspace.</p>