Citation:

PANGAEA.959825

Name: Nematoda diversity and functional feeding groups on the Northeast Greenland (NEG) shelf during POLARSTERN cruise PS109
Published: 2024-01-08
License: https://creativecommons.org/licenses/by/4.0/
Keywords: feeding types; glacier; interstitial; NEW Polynya; Northeast Water Polynya; outflow shelf; sediment; species composition

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Abstract:

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).

Keyword(s):

feeding types; glacier; interstitial; NEW Polynya; Northeast Water Polynya; outflow shelf; sediment; species composition

Supplement to:

Bodur, Yasemin V; Renaud, Paul E; Lins, Lidia; Da Costa Monteiro, Luana; Ambrose, William G Jr; Felden, Janine; Krumpen, Thomas; Wenzhöfer, Frank; Włodarska-Kowalczuk, Maria; Braeckman, Ulrike (2024): Weakened pelagic-benthic coupling on an Arctic outflow shelf (Northeast Greenland) suggested by benthic ecosystem changes. Elementa - Science of the Anthropocene, 12(1), 00005, https://doi.org/10.1525/elementa.2023.00005

References:

Heip, Carlo H R; Vincx, Magda; Vranken, G (1985): The ecology of marine nematodes. Oceanography and Marine Biology Annual Review, 23, 399-489

Seinhorst, J W (1959): A Rapid Method for the Transfer of Nematodes From Fixative To Anhydrous Glycerin. Nematologica, 4(1), 67-69

Wieser, Wolfgang (1953): Die Beziehung Zwischen Mundhöhlengestalt, Ernährungsweise Und Vorkommen Bei Freilebenden Marinen Nematoden: Eine Ökologisch-Morphologische Studie. Arkiv för zoologi (2. Ser. 4), 439-484

Project(s):

FRontiers in Arctic marine Monitoring (FRAM)

Funding:

Research Foundation of Flanders (FWO), grant/award no. 1201720N

The Research Council of Norway (RCN), grant/award no. 276730: The Nansen Legacy

Coverage:

Median Latitude: 78.999845 * Median Longitude: -14.784451 * South-bound Latitude: 76.799630 * West-bound Longitude: -19.318270 * North-bound Latitude: 80.317630 * East-bound Longitude: -7.931730

Date/Time Start: 2017-09-17T15:16:00 * Date/Time End: 2017-10-04T19:13:00

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.025 m

Event(s):

PS109_19-4 * Latitude: 80.134150 * Longitude: -7.931730 * Date/Time: 2017-09-17T15:16:00 * Elevation: -315.0 m * Campaign: (ARK-XXXI/4) * Basis: * Method/Device: Multicorer with television (TVMUC)

PS109_36-2 * Latitude: 80.317630 * Longitude: -10.031730 * Date/Time: 2017-09-19T06:09:00 * Elevation: -318.0 m * Campaign: (ARK-XXXI/4) * Basis: * Method/Device: Multicorer with television (TVMUC)

PS109_45-4 * Latitude: 80.134370 * Longitude: -17.710500 * Date/Time: 2017-09-20T20:05:00 * Elevation: -219.0 m * Campaign: (ARK-XXXI/4) * Basis: * Method/Device: Multicorer with television (TVMUC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Braeckman, Ulrike
2	Latitude of event	Latitude		Braeckman, Ulrike
3	Longitude of event	Longitude		Braeckman, Ulrike
4	Date/Time of event	Date/Time		Braeckman, Ulrike
5	Replicate	Repl		Braeckman, Ulrike
6	Depth, top/min	Depth top	m	Braeckman, Ulrike
7	Depth, bottom/max	Depth bot	m	Braeckman, Ulrike
8	DEPTH, sediment/rock	Depth sed	m	Braeckman, Ulrike		Geocode
9	Number	No		Braeckman, Ulrike		Slide number
10	Nematoda	Nematoda	#	Braeckman, Ulrike	Counted
11	Genus	Genus		Braeckman, Ulrike
12	Genus, unique identification	Genus UID		Braeckman, Ulrike		WoRMS
13	Genus, unique identification (Semantic URI)	Genus UID (Semantic URI)		Braeckman, Ulrike		WoRMS
14	Genus, unique identification (URI)	Genus UID (URI)		Braeckman, Ulrike		WoRMS
15	Sex	Sex		Braeckman, Ulrike
16	Feeding type	Feeding type		Braeckman, Ulrike	Feeding type quantification according to Wieser (1953)	Selective deposit feeders (1A), non-selective deposit feeders (1B), epistratum feeders (2A) and predators/scavengers (2B)
17	Comment	Comment		Braeckman, Ulrike
18	Principal investigator	PI		Braeckman, Ulrike		Identified by

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

67452 data points

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