Pelagic protist (including phytoplankton) abundance and biodiversity data collected from the water column and water filled voids inside ridges during MOSAiC legs 2 to 4 in 2019/2020 ...

• Main Authors: Assmy, Philipp, Wiktor, Jozef M, Dąbrowska, Anna Maria, Tatarek, Agnieszka, Rozanska, Magdalena, Olsen, Lasse Mørk, Gardner, Jessie, Müller, Oliver, Hoppe, Clara Jule Marie, Gradinger, Rolf, Granskog, Mats A
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Arctic Ocean; Diatom; MOSAiC_ECO; Phytoplankton; protists; Field number description; Cruise/expedition; Event label; Comment; DATE/TIME; Location; LONGITUDE; LATITUDE; Depth, bathymetric; Gear; Depth, water, bottom/maximum; Depth, water, top/minimum; Phylum; Class; Order; Family; Genus; Taxon/taxa, unique identification; Taxon/taxa, unique identification Semantic URI; Taxon/taxa, unique identification URI; Scientific name; Identification qualifier; Life stage; Size group description; Organism remarks; Identification remarks; Individuals; Fields; Magnification; Investigator; Date of determination; Sample volume; Abundance; Ice corer; Remotely operated sensor platform BEAST; Snow sampler metal; CTD/Rosette; Laser Particle Sizer LPS; Conductivity meter; Air sampler; Radiosonde; Hand pump; Quantitative phytoplankton method Utermöhl, 1958; PS122/2; PS122/3; Arctic
• Online Access: https://dx.doi.org/10.1594/pangaea.957640; https://doi.pangaea.de/10.1594/PANGAEA.957640

The data has been collected during the the year-long drift expedition "Multidisciplinary drifting Observatory for the Study of Arctic Climate" (MOSAiC) from September 2019 to September 2020 on research vessel Polarstern. The samples were collected with Niskin bottles attached to a CTD rosette, an Apstein net with 20 µm mesh size, a hand pump or a pump mounted on a ROV. The samples were preserved using a few drops of Lugol and hexamethylenetetramine-buffered formalin at a final concentration of 1%. The samples were collected with Niskin bottles attached to a CTD rosette at the following depths: 5, 10, 30, 60, 90 m and deep chlorophyll max (DCM). Protists were identified and counted with light microscopy using the Utermöhl method and the result are given as cells per liter (cells/L) called Abundance. ...