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  • Data  (5)
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  • 1
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    Benthic meiofauna diversity and nematoda functional feeding groups on the Northeast Greenland (NEG) shelf during POLARSTERN cruise PS109 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    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. All metazoan meiobenthic organisms were classified at higher taxonomic levels and counted under a stereoscopic microscope (Leica MZ 8, 16x5x). All 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: feeding types; FRAM; FRontiers in Arctic marine Monitoring; glacier; interstitial; NEW Polynya; Northeast Water Polynya; outflow shelf; sediment; species composition
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Meiofauna abundances following crushed nodule substrate deposition for eleven days during SONNE cruise SO242/2 (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: During Sonne cruise SO242-2 six steel rings were inserted into undisturbed sediment at the southern reference site of the DISCOL experimental area using ROV Kiel 6000 (GEOMAR). Subsequently, on three of these steel rings a sediment dispenser was deployed to distribute 250 mL of crushed nodule substrate onto the ring surface area resulting in an added layer of approximately 2 cm. The sediment dispensers were left on the steel rings for one night to allow settlement of all particles. After the incubation time of eleven days each steel ring was subsampled with push cores (7.4 cm inner diameter) and those were sliced in different depth layers (added substrate layer, 0-1 cm,1-2 cm and 2-5 cm sediment depth). Samples were fixed in formaldehyde and meiofauna was analysed in the lab of the Marine Biology group at Ghent university.
    Keywords: Core; Date/Time of event; Depth, bottom/max; DEPTH, sediment, experiment; Depth, top/min; Depth comment; Elevation of event; Event label; Experimental treatment; Gastrotricha; Harpacticoida; Isopoda; JPI-OCEANS; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Latitude of event; Longitude of event; Loricifera; Meiofauna, abundance; Mollusca; Nauplii; Nematoda; Ostracoda; Polychaeta; PUC; Push corer; SO242/2; SO242/2_216_PUC-12; SO242/2_216_PUC-13; SO242/2_216_PUC-25; SO242/2_216_PUC-34; SO242/2_216_PUC-37; SO242/2_216_PUC-5; Sonne_2; South Pacific Ocean, Peru Basin; Tantulocarida; Tardigrada
    Type: Dataset
    Format: text/tab-separated-values, 333 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Benthic meiofauna diversity on the Northeast Greenland (NEG) shelf sediments during POLARSTERN cruise PS109 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    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. All metazoan meiobenthic organisms were classified at higher taxonomic levels and counted under a stereoscopic microscope (Leica MZ 8, 16x5x).
    Keywords: 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; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); TVMUC
    Type: Dataset
    Format: text/tab-separated-values, 9900 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 4
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    Nematoda diversity and functional feeding groups on the Northeast Greenland (NEG) shelf during POLARSTERN cruise PS109 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    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
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Meiofauna abundances following a 94 h in-situ copper exposure during SONNE cruise SO242/2 (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: During Sonne cruise SO242-2 six enclosure corrals (30*30 cm) were deployed in undisturbed sediment at the southern reference site of the DISCOL experimental area using ROV Kiel 6000 (GEOMAR). Artificial sediment was incubated at 2°C in filtered seawater (sediment effect) or in filtered seawater spiked with copper (copper effect; 1, 5, 10, or 20 mg Cu L-1) for 72 h prior to deployment and subsequently added on top of the deep-sea sediment inside the corrals. After approx. 94h of in-situ incubation, push cores (7.4 cm inner diameter) were taken inside the corrals and sliced in different depth layers (artificial sediment layer, 0-1 cm, 1-2 cm and 2-5 cm). Samples were fixed in formaldehyde and meiofauna was analysed in the lab of the Marine Biology group at Ghent university.
    Keywords: Bivalvia; Copepoda; Core; Date/Time of event; Depth, bottom/max; DEPTH, sediment, experiment; Depth, top/min; Depth comment; Elevation of event; Event label; Experimental treatment; Gastrotricha; Halacaroidea; Isopoda; JPI-OCEANS; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Kinorhyncha; Latitude of event; Longitude of event; Loricifera; Meiofauna, abundance; Nauplii; Nematoda; Ostracoda; Polychaeta; PUC; Push corer; SO242/2; SO242/2_196_PUC-10; SO242/2_196_PUC-18; SO242/2_196_PUC-20; SO242/2_196_PUC-24; SO242/2_196_PUC-49; SO242/2_196_PUC-52; SO242/2_196_PUC-53; SO242/2_196_PUC-57; SO242/2_196_PUC-58; SO242/2_196_PUC-61; SO242/2_196_PUC-63; SO242/2_196_PUC-65; SO242/2_196_PUC-67; SO242/2_196_PUC-74; SO242/2_196_PUC-79; SO242/2_196_PUC-80; SO242/2_196_PUC-83; SO242/2_196_PUC-9; Sonne_2; South Pacific Ocean, Peru Basin; Tanaidacea; Tantulocarida; Tardigrada; Thickness
    Type: Dataset
    Format: text/tab-separated-values, 1365 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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