Intact phospholipids in the digestive system of Antarctic krill measured with LC-HRMS ...

• Main Authors: Heyen, Simone, Schneider, Vivien, Hüppe, Lukas, Meyer, Bettina, Wilkes, Heinz
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Antarctic krill; Antarctic Peninsula; Euphausia superba; fatty acids; Intact phospholipids; liquid chromatography high-resolution mass spectrometry; Phosphatidylcholine; Phosphatidylethanolamine; Southern Ocean; Very long chain polyunsaturated fatty acids; Event label; Latitude of event; Longitude of event; Date/Time of event; Elevation of event; Location of event; Sample ID; DEPTH, water; Krill, length; Sex; Organ; Phosphatidylcholine 16:0/13:0; Phosphatidylcholine 16:1/13:0; Phosphatidylcholine 15:1/14:0; Phosphatidylcholine 16:1/14:0; Phosphatidylcholine 14:1/16:0; Phosphatidylcholine 16:4/14:0; Phosphatidylcholine 15:0/16:1; Phosphatidylcholine 14:0/17:1; Phosphatidylcholine 14:0/18:1; Phosphatidylcholine 16:0/16:1; Phosphatidylcholine 16:1/16:1; Phosphatidylcholine 18:4/14:0; Phosphatidylcholine 16:4/16:0; Phosphatidylcholine 18:1/15:0; Phosphatidylcholine 16:0/17:1; Phosphatidylcholine 18:1/15:1; Phosphatidylcholine 16:0/17:2; Phosphatidylcholine 18:2/15:0; Phosphatidylcholine 16:1/17:1; Phosphatidylcholine 14:0/19:2; Phosphatidylcholine 16:0/18:1; Phosphatidylcholine 18:3/16:0; Phosphatidylcholine 16:0/22:5; Phosphatidylcholine 20:5/14:1; Phosphatidylcholine 18:1/17:0; Phosphatidylcholine 16:0/19:1; Phosphatidylcholine 18:1/18:1; Phosphatidylcholine 18:2/18:1; Phosphatidylcholine 16:0/20:3; Antarctic; Bransfield Strait; Dyer; South Orkney Islands; Antarc*; Antarctic Krill
• Online Access: https://dx.doi.org/10.1594/pangaea.962008; https://doi.pangaea.de/10.1594/PANGAEA.962008

Antarctic krill, Euphausia superba, is a key species in the Southern Ocean with an immense biomass. Ongoing climate change affects their food availability, habitat and survivability. Therefore, markers documenting changes in this species are important to monitor and discover future issues, also because krill-derived products are manufactured for human consumption. While many studies focus on the analysis of the fatty acid composition after the hydrolysis of lipids, the composition of intact lipids has rarely been evaluated.Krill was caught with a continuous krill pumping system in May of 2021 in the Bransfield Strait and in January and March of 2022 at the South Orkney Islands aboard the commercial krill fishing vessel Antarctic Endurance. The stomach, digestive gland and hind gut were dissected and analysed individually. Samples were extracted with an optimized Bligh&Dyer protocol.Intact phospholipids from the digestive system of Antarctic krill, Euphausia superba, were measured with liquid ...