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  • Data  (8,043)
  • 2020-2024  (8,043)
  • 2020-2022
  • 1940-1944
  • 2023  (8,043)
Collection
Source
Keywords
Publisher
Years
  • 2020-2024  (8,043)
  • 2020-2022
  • 1940-1944
Year
  • 1
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    Dinoflagellate cyst abundances in the benthic nepheloid layer, sediment trap and surface sediments off Figueira da Foz (NW Portugal, Atlantic Iberian margin) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Description: This dataset includes counts, percentages and concentrations of all dinoflagellate cyst taxa identified in the benthic nephloid layer (BNL), cyst rain and surface sediments collected along a land-sea transect off Figueira da Foz (NW Portugal, Atlantic Iberian margin) during the Hydrographic Institute (IH)-HABWAVE cruise (16th-19th September 2019). Sampling of the dinoflagellate cyst community in the BNL, the water column (sediment trap) and the surface sediments (together with studies of spatio-temporal changes in physical properties) were carried out in order to investigate the dinoflagellate cyst distribution and the factors (physical and biological) affecting it. Water samples for cyst analyses were collected by a rosette firing system associated with the CTD, and the cyst rain using a sediment trap situated above the BNL. They were filtered (40-47 l) on board through a 150µm-nylon mesh sieve onto a 10µm-calibrated stainless steel sieve (Retsch). In the laboratory, cysts were concentrated by centrifugation. Full and empty cysts were counted to investigate whether a reservoir of viable cysts existed in the BNL. Surface sediments were sampled with a Smith McIntyre grab and using Plexiglass tubes (3.6 cm internal diameter) that were inserted in the sediment to recover the top 1-cm layer. Cysts from sediments were concentrated by density separation with sodium polytungstate (2.016 g/ml).
    Keywords: Benthic nepheloid layer; Coastal dynamics; Dinoflagellate cysts; NW portuguese margin; Surface sediments
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
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  • 2
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    Morphological measurements of coccoliths from surface samples of R/V SONNE cruise SO95 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Description: The dataset compiles morphological measurements of coccoliths (Gephyrocapsa spp.) from one sample from the Western Equatorial Pacific. The morphological measurements were applied to evaluate coccolithophore preservation aspects under different dissolution intensities in a laboratory experiment. For the dissolution experiment, we added different amounts of Calgon solution (0, 0.4, 0.8, 2, 4, and 6 ml) in subsamples prepared from one sediment sample (ODP 807A-2H2W57-59 cm). The length, volume, area, and mass were obtained using the C-Calcita software from images taken under a cross-polarized microscope (Zeiss AX10). Thickness and the shape factor ks were calculated. The columns include the sample name, how much Calgon was added into sediment suspension, the number of coccoliths measured per sample, length, mean ks shape factor and standard deviation of mean ks/mean ks.
    Keywords: Calculated after Gerotto et al. (2022); Calculated average/mean values; Coccoliths; Coccoliths, length; Coccoliths, mass; Coccoliths, shape factor; Coccoliths, shape factor, standard deviation; Coccoliths, thickness; Coccoliths, volume; dissolution experiment; Elevation of event; Emiliania huxleyi; Event label; Gephyrocapsa oceanica; Giant box corer; GIK17925-2; GIK17930-1; GIK17931-1; GIK17932-1; GIK17934-1; GIK17936-1; GIK17937-1; GIK17938-1; GIK17939-1; GIK17940-1; GIK17941-1; GIK17943-1; GIK17944-1; GIK17945-1; GIK17946-1; GIK17949-1; GIK17951-1; GIK17955-1; GIK17956-1; GIK17957-1; GIK17958-1; GIK17959-1; GIK17960-1; GIK17961-1; GIK17962-1; GIK17963-2; GIK17964-1; GIK17965-1; GKG; Latitude of event; Longitude of event; Method/Device of event; MONITOR MONSUN; morphological measurements; SO95; Sonne; South China Sea; Surface sediments
    Type: Dataset
    Format: text/tab-separated-values, 196 data points
    Location Call Number Expected Availability
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  • 3
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    Coccolith dissolution experiment from one sample of ODP Hole 130-807A (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Description: The dataset compiles morphological measurements of coccoliths (Gephyrocapsa spp. and Emiliania huxleyi, 〉2µm) from surface samples of the South China Sea retrieved along a depth gradient (629 – 3809 m) during the R/V Sonne cruises (SO-95). The morphological attributes (length, volume, thickness, and ks shape factor) from the Noelaerhabdaceae group (Emiliania huxleyi and Gephyrocapsa spp) were applied to evaluate coccolithophore calcification and preservation aspects. The length, volume, area, and mass were obtained using the C-Calcita software from images taken under a cross-polarized microscope (Zeiss AX10). Thickness and the shape factor ks were calculated. The columns include station names, Longitude, Latitude, Depth (m), number of coccoliths measured per sample, mean ks shape factor, thickness, length, volume, mass, and standard deviation of mean ks/mean ks.
    Keywords: 130-807A; Calculated after Gerotto et al. (2022); Calculated average/mean values; Coccoliths; Coccoliths, length; Coccoliths, shape factor; Coccoliths, shape factor, standard deviation; dissolution experiment; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Emiliania huxleyi; Gephyrocapsa oceanica; Joides Resolution; Leg130; morphological measurements; Sample code/label; South China Sea; Surface sediments; Treatment: solution; West equatorial Pacific Ocean
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
    Location Call Number Expected Availability
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  • 4
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    Dinoflagellate cyst counts in the benthic nepheloid layer, sediment trap and surface sediments off Figueira da Foz (NW Portugal, Atlantic Iberian margin) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Keywords: Alexandrium-type; B1; B2; B3; Benthic nepheloid layer; Bottom grab (Smith-McIntyre); cf. Thoracosphaera sp.; Coastal dynamics; Counting, dinoflagellate cysts; CTD/Rosette; CTD-RO; Date/Time of event; Date/Time of event 2; DEPTH, sediment/rock; DEPTH, water; Dinoflagellate cyst; Dinoflagellate cyst, empty; Dinoflagellate cyst, full; Dinoflagellate cyst, total; Dinoflagellate cyst indeterminata, round brown; Dinoflagellate cyst indeterminata, spinny brown; Dinoflagellate cysts; Diplopsalis-type; Dubridinium sp.; Echinidinium granulatum; Echinidinium transparantum; Elevation of event; Event label; F1-02 LOW; F1-02 UP; F1-03; F1-04 LOW; F1-04 UP; F2-0; F2-1; F2-10; F2-11; F2-12; F2-2; F2-3; F2-4; F2-5; F2-6; F2-7; F2-8; F2-9; Gymnodinium catenatum; Gymnodinium microreticulatum; Gymnodinium nolleri; HABWAVE_B1; HABWAVE_B2; HABWAVE_B3; HABWAVE_F1-02_LOW; HABWAVE_F1-02_UP; HABWAVE_F1-03; HABWAVE_F1-04_LOW; HABWAVE_F1-04_UP; HABWAVE_F2-0; HABWAVE_F2-1; HABWAVE_F2-10; HABWAVE_F2-11; HABWAVE_F2-12; HABWAVE_F2-2; HABWAVE_F2-3; HABWAVE_F2-4; HABWAVE_F2-5; HABWAVE_F2-6; HABWAVE_F2-7; HABWAVE_F2-8; HABWAVE_F2-9; HABWAVE_S1; HABWAVE_S2; HABWAVE_ST; HABWAVE_T1-1; HABWAVE_T1-10; HABWAVE_T1-2; HABWAVE_T1-3; HABWAVE_T1-7; HABWAVE_T1-9; HABWAVE_T2-1; HABWAVE_T2-2; HABWAVE_T2-3; HABWAVE_T2-5; HABWAVE_T2-7; HABWAVE_T2-9; Impagidinium aculeatum; Impagidinium sp.; Latitude of event; Lejeunecysta oliva; Lejeunecysta sp.; Lingulodinium polyedra; Longitude of event; NW portuguese margin; off Figueira da Foz, NW Portugal; Peridinoid spp.; Polykrikos kofoidii; Protoceratium reticulatum; Protoperidinium americanum; Protoperidinium conicum; Protoperidinium divaricatum; Protoperidinium shanghaiense; Protoperidinium sp.; Protoperidinium stellatum; Protoperidinium subinerme; S1; S2; Sample code/label; Sample material; Sample method; Scrippsiella cf. trochoidea; SMG; Spiniferites bentori; Spiniferites cf. ramosus; Spiniferites delicatus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites sp.; ST; Surface sediments; T1-1; T1-10; T1-2; T1-3; T1-7; T1-9; T2-1; T2-2; T2-3; T2-5; T2-7; T2-9; Trap, sediment; TRAPS; Votadinium calvum; Votadinium rhomboideum; Votadinium spp.
    Type: Dataset
    Format: text/tab-separated-values, 2196 data points
    Location Call Number Expected Availability
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  • 5
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    Dinoflagellate cyst concentrations in the benthic nepheloid layer, off Figueira da Foz (NW Portugal, Atlantic Iberian margin) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Keywords: Alexandrium-type; Benthic nepheloid layer; Brigantedinium sp.; cf. Thoracosphaera sp.; Coastal dynamics; Counting, dinoflagellate cysts; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Dinoflagellate cyst, empty; Dinoflagellate cyst, full; Dinoflagellate cyst, total; Dinoflagellate cyst indeterminata, round brown; Dinoflagellate cyst indeterminata, spinny brown; Dinoflagellate cysts; Diplopsalis-type; Dubridinium sp.; Echinidinium granulatum; Echinidinium transparantum; Elevation of event; Event label; F1-02 LOW; F1-02 UP; F1-03; F1-04 LOW; F1-04 UP; F2-0; F2-1; F2-10; F2-11; F2-12; F2-2; F2-3; F2-4; F2-5; F2-6; F2-7; F2-8; F2-9; Gymnodinium catenatum; Gymnodinium microreticulatum; Gymnodinium nolleri; HABWAVE_F1-02_LOW; HABWAVE_F1-02_UP; HABWAVE_F1-03; HABWAVE_F1-04_LOW; HABWAVE_F1-04_UP; HABWAVE_F2-0; HABWAVE_F2-1; HABWAVE_F2-10; HABWAVE_F2-11; HABWAVE_F2-12; HABWAVE_F2-2; HABWAVE_F2-3; HABWAVE_F2-4; HABWAVE_F2-5; HABWAVE_F2-6; HABWAVE_F2-7; HABWAVE_F2-8; HABWAVE_F2-9; HABWAVE_S1; HABWAVE_S2; HABWAVE_T1-1; HABWAVE_T1-10; HABWAVE_T1-2; HABWAVE_T1-3; HABWAVE_T1-7; HABWAVE_T1-9; HABWAVE_T2-1; HABWAVE_T2-2; HABWAVE_T2-3; HABWAVE_T2-5; HABWAVE_T2-7; HABWAVE_T2-9; Impagidinium aculeatum; Impagidinium sp.; Latitude of event; Lejeunecysta oliva; Lejeunecysta sp.; Lingulodinium polyedra; Longitude of event; NW portuguese margin; off Figueira da Foz, NW Portugal; Peridinoid spp.; Polykrikos kofoidii; Protoceratium reticulatum; Protoperidinium americanum; Protoperidinium conicum; Protoperidinium divaricatum; Protoperidinium shanghaiense; Protoperidinium stellatum; Protoperidinium subinerme; S1; S2; Sample code/label; Sample material; Sample method; Scrippsiella cf. trochoidea; Spiniferites bentori; Spiniferites cf. ramosus; Spiniferites delicatus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites sp.; Surface sediments; T1-1; T1-10; T1-2; T1-3; T1-7; T1-9; T2-1; T2-2; T2-3; T2-5; T2-7; T2-9; Votadinium calvum; Votadinium rhomboideum; Votadinium spp.
    Type: Dataset
    Format: text/tab-separated-values, 1920 data points
    Location Call Number Expected Availability
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  • 6
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    Dinoflagellate cyst abundance in the benthic nepheloid layer, sediment trap and surface sediments off Figueira da Foz (NW Portugal, Atlantic Iberian margin) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Keywords: Alexandrium-type; B1; B2; B3; Benthic nepheloid layer; Bottom grab (Smith-McIntyre); Brigantedinium sp.; cf. Thoracosphaera sp.; Coastal dynamics; Counting, dinoflagellate cysts; CTD/Rosette; CTD-RO; Date/Time of event; Date/Time of event 2; DEPTH, sediment/rock; DEPTH, water; Dinoflagellate cyst, empty; Dinoflagellate cyst, full; Dinoflagellate cyst indeterminata, round brown; Dinoflagellate cyst indeterminata, spinny brown; Dinoflagellate cysts; Diplopsalis-type; Dubridinium sp.; Echinidinium granulatum; Echinidinium transparantum; Elevation of event; Event label; F1-02 LOW; F1-02 UP; F1-03; F1-04 LOW; F1-04 UP; F2-0; F2-1; F2-10; F2-11; F2-12; F2-2; F2-3; F2-4; F2-5; F2-6; F2-7; F2-8; F2-9; Gymnodinium catenatum; Gymnodinium microreticulatum; Gymnodinium nolleri; HABWAVE_B1; HABWAVE_B2; HABWAVE_B3; HABWAVE_F1-02_LOW; HABWAVE_F1-02_UP; HABWAVE_F1-03; HABWAVE_F1-04_LOW; HABWAVE_F1-04_UP; HABWAVE_F2-0; HABWAVE_F2-1; HABWAVE_F2-10; HABWAVE_F2-11; HABWAVE_F2-12; HABWAVE_F2-2; HABWAVE_F2-3; HABWAVE_F2-4; HABWAVE_F2-5; HABWAVE_F2-6; HABWAVE_F2-7; HABWAVE_F2-8; HABWAVE_F2-9; HABWAVE_S1; HABWAVE_S2; HABWAVE_ST; HABWAVE_T1-1; HABWAVE_T1-10; HABWAVE_T1-2; HABWAVE_T1-3; HABWAVE_T1-7; HABWAVE_T1-9; HABWAVE_T2-1; HABWAVE_T2-2; HABWAVE_T2-3; HABWAVE_T2-5; HABWAVE_T2-7; HABWAVE_T2-9; Impagidinium aculeatum; Impagidinium sp.; Latitude of event; Lejeunecysta oliva; Lejeunecysta sp.; Lingulodinium polyedra; Longitude of event; NW portuguese margin; off Figueira da Foz, NW Portugal; Peridinoid spp.; Polykrikos kofoidii; Protoceratium reticulatum; Protoperidinium americanum; Protoperidinium conicum; Protoperidinium divaricatum; Protoperidinium shanghaiense; Protoperidinium stellatum; Protoperidinium subinerme; S1; S2; Sample code/label; Sample material; Sample method; Scrippsiella cf. trochoidea; SMG; Spiniferites bentori; Spiniferites cf. ramosus; Spiniferites delicatus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites sp.; ST; Surface sediments; T1-1; T1-10; T1-2; T1-3; T1-7; T1-9; T2-1; T2-2; T2-3; T2-5; T2-7; T2-9; Trap, sediment; TRAPS; Votadinium calvum; Votadinium rhomboideum; Votadinium spp.
    Type: Dataset
    Format: text/tab-separated-values, 2124 data points
    Location Call Number Expected Availability
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  • 7
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    Dinoflagellate cyst concentrations in surface sediments, off Figueira da Foz (NW Portugal, Atlantic Iberian margin) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Keywords: Alexandrium-type; B1; B2; B3; Benthic nepheloid layer; Bottom grab (Smith-McIntyre); Brigantedinium sp.; cf. Thoracosphaera sp.; Coastal dynamics; Counting, dinoflagellate cysts; Date/Time of event; DEPTH, sediment/rock; DEPTH, water; Dinoflagellate cyst, empty; Dinoflagellate cyst, full; Dinoflagellate cyst, total; Dinoflagellate cyst indeterminata, round brown; Dinoflagellate cyst indeterminata, spinny brown; Dinoflagellate cysts; Diplopsalis-type; Dubridinium sp.; Echinidinium granulatum; Echinidinium transparantum; Elevation of event; Event label; Gymnodinium catenatum; Gymnodinium microreticulatum; Gymnodinium nolleri; HABWAVE_B1; HABWAVE_B2; HABWAVE_B3; Impagidinium aculeatum; Impagidinium sp.; Latitude of event; Lejeunecysta oliva; Lejeunecysta sp.; Lingulodinium polyedra; Longitude of event; NW portuguese margin; off Figueira da Foz, NW Portugal; Peridinoid spp.; Polykrikos kofoidii; Protoceratium reticulatum; Protoperidinium americanum; Protoperidinium conicum; Protoperidinium divaricatum; Protoperidinium shanghaiense; Protoperidinium stellatum; Protoperidinium subinerme; Sample code/label; Sample material; Sample method; Scrippsiella cf. trochoidea; SMG; Spiniferites bentori; Spiniferites cf. ramosus; Spiniferites delicatus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites sp.; Surface sediments; Votadinium calvum; Votadinium rhomboideum; Votadinium spp.
    Type: Dataset
    Format: text/tab-separated-values, 180 data points
    Location Call Number Expected Availability
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  • 8
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    Dinoflagellate cyst concentrations in a sediment trap off Figueira da Foz (NW Portugal, Atlantic Iberian margin) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-18
    Keywords: Alexandrium-type, flux; Benthic nepheloid layer; Brigantedinium sp. flux; cf. Thoracosphaera sp., flux; Coastal dynamics; Counting, dinoflagellate cysts; Date/Time of event; Date/Time of event 2; DEPTH, water; Dinoflagellate cyst, empty, flux; Dinoflagellate cyst, full, flux; Dinoflagellate cyst, total, flux; Dinoflagellate cyst indeterminata flux, round brown; Dinoflagellate cyst indeterminata flux, spinny brown; Dinoflagellate cysts; Diplopsalis-type, flux; Dubridinium sp., flux; Echinidinium granulatum, flux; Echinidinium transparantum, flux; Elevation of event; Event label; Gymnodinium catenatum, flux; Gymnodinium microreticulatum, flux; Gymnodinium nolleri, flux; HABWAVE_ST; Impagidinium aculeatum, flux; Impagidinium sp., flux; Latitude of event; Lejeunecysta oliva, flux; Lejeunecysta sp., flux; Lingulodinium polyedra, flux; Longitude of event; NW portuguese margin; off Figueira da Foz, NW Portugal; Peridinoid spp., flux; Polykrikos kofoidii, flux; Protoceratium reticulatum, flux; Protoperidinium americanum, flux; Protoperidinium conicum, flux; Protoperidinium divaricatum, flux; Protoperidinium shanghaiense, flux; Protoperidinium stellatum, flux; Protoperidinium subinerme, flux; Sample code/label; Sample material; Sample method; Scrippsiella cf. trochoidea, flux; Spiniferites bentori, flux; Spiniferites cf. ramosus, flux; Spiniferites delicatus, flux; Spiniferites membranaceus, flux; Spiniferites mirabilis, flux; Spiniferites sp., flux; ST; Surface sediments; Trap, sediment; TRAPS; Votadinium calvum, flux; Votadinium rhomboideum, flux; Votadinium spp., flux
    Type: Dataset
    Format: text/tab-separated-values, 60 data points
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  • 9
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    Experiments on coexisting phytoplankton species Chaetoceros affinis and Emiliania huxleyi in response to nutrients (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-17
    Description: Measurements of cell size, cell density, nutrient concentration and genotype composition in a long-term experiment (182 days) with the marine phytoplankton species Chaetoceros affinis and Emiliania huxleyi, each consisting of nine genotypes. The species were cultivated together at three different nutrient regimes (10 N, 20 N, 30 N) with increasing nitrate supply in a semi-continuous batch cycle system. The genotype composition of both species was assessed after 49, 91, and 182 days using microsatellites. In a short-term experiment cell size and density of nine Chaetoceros affinis genotypes separately were measured after 7 days growth at seven nitrate levels (2.5, 5, 7.5, 12.5, 20, 30, and 45 μmol L−1 N).
    Keywords: cell size; diatoms; evolution; Genotype Sorting; Laboratory experiment; nutrients; phenotypic plasticity; Phytoplankton; Priority Programme 1704 DynaTrait: Flexibility Matters: Interplay between Trait Diversity and Ecological Dynamics Using Aquatic Communities as Model Systems; Species Sorting; SPP1704; trait variability
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 10
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    Mid- to late-Holocene analysis of the influence of the La Plata River plume on the southwestern Atlantic shelf: A paleoenvironmental reconstruction based on lipid biomarkers and benthic foraminifera (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-17
    Description: The coupled results of sedimentological, molecular, and microfossil proxies were used to determine the paleoclimatic and paleoceanographic variations as well as identify the sediment transport pathways along the last c.a. 6,300 years in a sedimentary record collected on the inner shelf of the Southwestern Atlantic Ocean. Applied methods include the analyses of n-alkanes, n-alkanols, alkenones, and benthic foraminifera enabling a more complete environmental perspective of the La Plata River plume influence on the Southwestern Atlantic Shelf, regarding the relationship between climate, productivity, as well as hydrodynamic. Variations in marine productivity, lipid biomarkers of terrestrial plants, diagnostic geochemical indices, and sea surface temperature point to three phases within the core. These phases suggest the influence of synchronized variations in sea level, precipitation over the Paraná River drainage basin, and the northward displacement of the PPW by the BCC, transporting sediments from southern areas to the core 7606 region.
    Keywords: Benthic foraminifera; GC; Gravity corer; La_Plata_River_plume; La Plata River; lipid biomarkers; Paleotemperature; southern Brazil
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
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