Gut carbon, nitrogen and phosphorus composition of Euphausia superba and Salpa thompsoni from the northern Antarctic Peninsula ...

• Main Authors: Plum, Christoph, Moorthi, Stefanie, Mike, Smykala, Fenja-Marie, Möller
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Euphausia superba; krill; Polarstern; salps; Southern Ocean; stoichiometry; Tunicata; West Antarctic Peninsula; Zooplankton; Event label; Cruise/expedition; Gear; Abbreviation; DATE/TIME; LATITUDE; LONGITUDE; Species; Species, unique identification URI; Length, total; Sex; Life stage; Sample code/label; Gut content, dry mass; Organ; Ash free dry mass; Biomass, ash free dry mass per dry mass; Biomass as carbon; Biomass as nitrogen; Biomass as phosphorus; Carbon, per dry mass; Nitrogen, per dry mass; Phosphorus, per dry mass; Carbon, organic, total; Nitrogen, organic, total; Phosphorus, organic, total; Carbon, total, per dry mass; Nitrogen, total, per dry mass; Phosphorus, total, per dry mass; Carbon/Nitrogen ratio; Carbon/Phosphorus ratio; Nitrogen/Phosphorus ratio; Isaac-Kid-Midwater Trawl; Comparator balance, Mettler Toledo, XP26; Carbon and hydrogen and nitrogen CHN analyzer, Thermo Scientific, FlashEA 1112; Calculated; PS112; Population Shift and Ecosystem Response – Krill vs. Salps POSER; Antarc*; Antarctic; Antarctic Krill; Antarctic Peninsula
• Online Access: https://dx.doi.org/10.1594/pangaea.958984; https://doi.pangaea.de/10.1594/PANGAEA.958984

Samples were collected between 03/26/2018 and 04/27/2018 around the northern tip of the Antarctic Peninsula (63° 0' 1.843'' S, 60° 0' 16.901''W) onboard the RV Polarstern during the PS112 campaign in order to identify the elemental composition and stoichiometry of the Antarctic krill (Euphausia superba) and salps (Salpa thompsoni). The sampling stations were situated in the survey grid of the Antarctic Marine Living Resources Program (AMLR). At the time of sampling, the study area was ice free and ambient Chlorophyll a levels were comparable to previous studies in this time frame (e.g. Schofield et al., 2017). The phytoplankton community was dominated by dinoflagellates, diatoms and prymnesiophytes, which is typical for autumn (March–May) around the NAP (Pauli et al., 2021). Krill and salps were sampled by using the 1.8 m² Isaacs-Kidd Midwater Trawl Net (IKMT) equipped with a 505 μm mesh which is suitable to collect both salps and krill in good condition. The net was towed obliquely to 170 m, or 20 m from ...