Publication Date:
2024-07-01
Description:
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. Nematodes of each sample were handpicked with a fine needle, transferred to glycerine (De Grisse I, II and III) (Seinhorst, 1959) , mounted on glass slides, identified to genus level and allocated to functional feeding groups based on Wieser, 1953 (as selective deposit feeders - 1A, non-selective deposit feeders - 1B, epistratum feeders - 2A and predators/scavengers - 2B).
Keywords:
ARK-XXXI/4; Comment; Counted; Date/Time of event; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; Feeding type; Feeding type quantification according to Wieser (1953); feeding types; FRAM; FRontiers in Arctic marine Monitoring; Genus; Genus, unique identification; Genus, unique identification (Semantic URI); Genus, unique identification (URI); glacier; interstitial; Latitude of event; Longitude of event; Multicorer with television; Nematoda; NEW Polynya; Northeast Water Polynya; Number; outflow shelf; Polarstern; Principal investigator; PS109; PS109_115-2; 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; Sex; species composition; TVMUC
Type:
Dataset
Format:
text/tab-separated-values, 67452 data points
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