Lipid mass and free fatty-acid composition of Calanus hyperboreus (CV) exposed to pristine and biofouled microplastics during shipboard incubation experiments (southeastern Greenland, summer 2024)

This dataset provides measurements of total lipid mass and free fatty-acid composition of the Arctic copepod Calanus hyperboreus, copepodite stage CV, collected during three independent shipboard microplastic exposure experiments conducted aboard the RRS Sir David Attenborough in July-August 2024 during the KANG-GLAC cruise (SD041). Copepods were exposed to pristine and biofouled nylon-6 microplastics at concentrations 0, 20 and 200 microgram per liter under food availability and starvation conditions. Total lipid mass was quantified gravimetrically and normalized to individual dry weight. Fatty-acid composition was analysed as fatty-acid methyl esters using gas chromatography-mass spectrometry (GC-MS) and expressed as relative abundance (percent of total detected fatty acids). Funding was provided by: - Natural Environment Research Council (NERC) IAPETUS2 Doctoral Training Partnership (NE/S007431/1) - UK Research and Innovation (UKRI) Future Leaders Fellowship project CUPIDO (MR/T020962/1) - European Research Council (Horizon 2020) project ANTSIE (Grant 864637)