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  • 2010-2014  (5)
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  • 1
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    (Table 2) Mean biomass of protists in water samples from Godthåbsfjord and Kapisigdlit fjord, West Greenland (2011)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: Amphidinium sphenoides, biomass as carbon; Amphidinium sphenoides, standard deviation; Chaetoceros spp., biomass as carbon; Chaetoceros spp., standard deviation; Ciliates, biomass as carbon; Ciliates, standard deviation; CTD, Seacat; CTD-S; Dana10_GF10bis; Dana10_GF11_1; Dana10_K2_1; Dana10_K4_1; Dana10/1; Dana II; Date/Time of event; DEPTH, water; Diatoms, centrales, biomass as carbon; Diatoms, pennales, biomass as carbon; Diatoms, standard deviation; Dinobryon spp., biomass as carbon; Dinobryon spp., standard deviation; Dinoflagellates, biomass as carbon; Dinoflagellates, standard deviation; Dinophysis spp., biomass as carbon; Dinophysis spp., standard deviation; Event label; Godthåbsfjord, West Greenland; Gyrodinium spp., biomass as carbon; Gyrodinium spp., standard deviation; Kapisigdlit, West Greenland; Katodinium glaucum, biomass as carbon; Katodinium glaucum, standard deviation; Laboea strobila, biomass as carbon; Laboea strobila, standard deviation; Latitude of event; Longitude of event; Nanoflagellates, biomass as carbon; Nanoflagellates, standard deviation; Phaeocystis sp., biomass as carbon; Phaeocystis sp., standard deviation; Protoperidinium spp., biomass as carbon; Protoperidinium spp., standard deviation; Pseudo-nitzschia spp., biomass as carbon; Pseudo-nitzschia spp., standard deviation; Strombidium spp., biomass as carbon; Strombidium spp., standard deviation; Thalassiosira spp., biomass as carbon; Thalassiosira spp., standard deviation; Tintinnid, biomass as carbon; Tintinnid, standard deviation; Torodinium robustum, biomass as carbon; Torodinium robustum, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 168 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    (Table 3) Phytoplankton growth rate and primary production during dilution grazing experiments (2011)
    PANGAEA
    Details
    Publication Date: 2023-07-11
    Keywords: CTD, Seacat; CTD-S; Dana10_FB2_1; Dana10_FB3.5_1; Dana10_GF1_1; Dana10_GF10_1; Dana10_GF10bis; Dana10_GF11_1; Dana10_GF2_1; Dana10_GF3_1; Dana10_GF6_1; Dana10_K2_1; Dana10_K4_1; Dana10/1; Dana II; Event label; Feeding experiment; FX; Fyllas Banke, West Greenland; Godthåbsfjord, West Greenland; Kapisigdlit, West Greenland; Method comment; Mortality; Number; Phytoplankton growth rate; Primary production of chlorophyll a per day; Primary production removed/grazed; Size fraction; Station label
    Type: Dataset
    Format: text/tab-separated-values, 138 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    (Table 4) Phytoplankton growth rate and mortality during pre-filtered dilution grazing experiments (2013)
    PANGAEA
    Details
    Publication Date: 2023-07-11
    Keywords: CTD, Seacat; CTD-S; Dana10_GF11_1; Dana10_GF6_1; Dana10_K2_1; Dana10/1; Dana II; Event label; Feeding experiment; FX; Godthåbsfjord, West Greenland; Kapisigdlit, West Greenland; Mortality; Number; Phytoplankton growth rate; Size fraction; Station label
    Type: Dataset
    Format: text/tab-separated-values, 14 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Chlorophyll a content, protist biomass and experimental plankton growth and mortality in West Greenland water samples (2011)
    PANGAEA
    In:  Supplement to: Calbet, Albert; Riisgaard, Karen; Saiz, Enric; Zamora, Sara; Stedmon, Colin A; Nielsen, Torkel Gissel (2011): Phytoplankton growth and microzooplankton grazing along a sub-Arctic fjord (Godthabsfjord, west Greenland). Marine Ecology Progress Series, 442, 11-22, https://doi.org/10.3354/meps09343
    Details
    Publication Date: 2023-12-13
    Description: We evaluated the role of microzooplankton (sensu latto, grazers 〈500 µm) in determining the fate of phytoplankton production (PP) along a glacier-to-open sea transect in the Greenland subarctic fjord, Godthabfjord. Based on the distribution of size fractionated chlorophyll a (chl a) concentrations we established 4 zones: (1) Fyllas Bank, characterized by deep chl a maxima (ca. 30 to 40 m) consisting of large cells, (2) the mouth and main branch of the fjord, where phytoplankton was relatively homogeneously distributed in the upper 30 m layer, (3) inner waters influenced by glacial melt water and upwelling, with high chl a concentrations (up to 12 µg/l) in the 〉10 µm fraction within a narrow (2 m) subsurface layer, and (4) the Kapisigdlit branch of the fjord, ice-free, and characterized with a thick and deep chl a maximum layer. Overall, microzooplankton grazing impact on primary production was variable and seldom significant in the Fyllas Bank and mouth of the fjord, quite intensive (up to 〉100% potential PP consumed daily) in the middle part of the main and Kapisigdlit branches of the fjord, and rather low and unable to control the fast growing phytoplankton population inhabiting the nutrient rich waters in the upwelling area in the vicinity of the glacier. Most of the grazing impact was on the 〈10 µm phytoplankton fraction, and the major grazers of the system seem to be 〉20 µm microzooplankton, as deducted from additional dilution experiments removing this size fraction. Overall, little or no export of phytoplankton out of the fjord to the Fyllas Bank can be determined from our data.
    Keywords: International Polar Year (2007-2008); IPY
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Selective incorporation of dissolved organic matter (DOM) during sea ice formation (2013)
    ELSEVIER SCIENCE BV
    In:  EPIC3Marine Chemistry, ELSEVIER SCIENCE BV, 155, pp. 148-157, ISSN: 0304-4203
    Details
    Publication Date: 2019-07-17
    Description: This study investigated the incorporation of DOM from seawater into 〉2 day-old sea ice in tanks filled with seawater alone or amended with DOM extracted from the microalga, Chlorella vulgaris. Optical properties, including chromophoric DOM (CDOM) absorption and fluorescence, as well as concentrations of dissolved organic carbon (DOC), dissolved organic nitrogen (DON), dissolved carbohydrates (dCHOs) and dissolved uronic acids (dUAs) were measured. Enrichment factors (EFs), calculated from salinity-normalized concentrations of DOM in bulk ice, brine and frost flowers relative to under-ice water, were generally 〉1. The enrichment factors varied for different DOM fractions: EFs were the lowest for humic-like DOM (1.0–1.39) and highest for amino acid-like DOM (1.10–3.94). Enrichment was generally highest in frost flowers with there being less enrichment in bulk ice and brine. Size exclusion chromatography indicated that there was a shift towards smaller molecules in the molecular size distribution of DOM in the samples collected from newly formed ice compared to seawater. Spectral slope coefficients did not reveal any consistent differences between seawater and ice samples. We conclude that DOM is incorporated to sea ice relatively more than inorganic solutes during initial formation of sea ice and the degree of the enrichment depends on the chemical composition of DOM
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
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