Zooplankton dry mass measurements from Rectangular Midwater Trawl1 (RMT1) samples during POLARSTERN expedition PS106/2 to the Arctic Ocean

• Main Authors: Flores, Hauke, Zakharova, Nadezhda, Bravo-Rebolledo, Elisa, Ehrlich, Julia, Hildebrandt, Nicole, Laakmann, Silke, Meijboom, Andre, Niehoff, Barbara, Schaafsma, Fokje L, Sulanke, Erik, van Dorssen, Michiel
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Abundance; Arctic Ocean; ARK-XXXI/1.2; Biomass; biovolume; Date/Time of event; DEPTH; water; experiment; bottom/maximum; top/minimum; dry mass; Elevation of event; Event label; Latitude of event; Longitude of event; Polarstern; PS106_52-1; PS106_64-2; PS106_65-3; PS106_67-1; PS106_70-4; PS106_71-4; PS106_72-1; PS106_73-8; PS106_74-4; PS106_76-3; PS106_77-3; PS106_78-4; PS106/2; PS106.2; Rectangular midwater trawl; RMT; RMT1; Sample code/label; Size fraction; Volume; Zooplankton; ZooScan; Arctic; Berichte zur Polar- und Meeresforschung; Reports on Polar and Marine Research
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.971717

Dry mass (mg DM m-3) of zooplankton bulk samples was measured from samples of Polarstern cruise PS106 (SIPKA). Samples were taken with the RMT1 net with a mesh size of 320 µm. Each sample was fractionated onboard into the following size classes: 0 – 0.5 mm, 0.5 – 1 mm, 1 – 2 mm, 2 – 4 mm and >4 mm) and frozen in petri dishes at -20°C for dry mass measurements. Each size fraction was freeze-dried for 48 hours and subsequently the dry mass was weighed to the nearest microgram.