Benthic meiofauna diversity on the Northeast Greenland (NEG) shelf sediments during POLARSTERN cruise PS109

• Main Authors: Da Costa Monteiro, Luana, Lins, Lidia, Braeckman, Ulrike
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: ARK-XXXI/4; Date/Time of event; DEPTH; sediment/rock; Event label; feeding types; FRAM; FRontiers in Arctic marine Monitoring; glacier; interstitial; Latitude of event; Longitude of event; Meiofauna; abundance; Multicorer with television; NEW Polynya; Northeast Water Polynya; outflow shelf; Polarstern; PS109; PS109_115-3; PS109_122-1; PS109_125-3; PS109_139-2; PS109_19-4; PS109_36-2; PS109_45-4; PS109_76-2; PS109_84-2; PS109_85-1; PS109_93-2; Replicate; sediment; species composition; Station label; Stereoscopicmicroscope; Leica; MZ 8 [16x5x]; Taxon/taxa; unique identification (Semantic URI); unique identification (URI); TVMUC; Arctic; Greenland
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.959357; https://doi.org/10.1594/PANGAEA.959357

Between September and October 2017, MUC cores were deployed at various locations across the Northeast Greenland (NEG) shelf with R/V Polarstern during PS109. Samples for meiofauna were collected with a cut-off 10 ml syringe (area 1.89 m²) that was inserted to 5 cm depth sediment depth in the MUC core, and subsequently sliced in 5 horizons of 1 cm. Afterwards, meiofauna were extracted from the samples by triple density centrifugation with the colloidal silica polymer LUDOX TM 40 (Heip et al., 1985) and rinsed with freshwater on stacked 1 mm and 32 µm mesh sieves. The fraction retained on the 32 µm mesh sieve was preserved in 4 % Li2CO3-buffered formalin and stained with Rose Bengal. All metazoan meiobenthic organisms were classified at higher taxonomic levels and counted under a stereoscopic microscope (Leica MZ 8, 16x5x).