LOFAs data of NEREA Augmented Observatory

LOFAs samples were collected at the selected depth using Niskin bottle, pre-filtered onto 200 μm mesh nylon net, filtered onto polycarbonate filters (2 μm mesh size) and then frozen in liquid nitrogen. Filters were sonicated in water, incubated for 30 min at room temperature and then LOFAs extracted and quantified through liquid chromatography-mass spectrometry (LC-MS) using an internal standard. LOFAs amount are normalized by the volume of the filtered seawater sample.