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  • 2020-2024  (2)
  • 2000-2004
  • 2020  (2)
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  • 2020-2024  (2)
  • 2000-2004
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  • 1
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    Unknown
    Fossil diatom record from marine sediment core AMD14-204_CASQ (2020)
    PANGAEA
    Details
    Publication Date: 2024-04-27
    Description: Raw counts of fossil diatom taxa from the marine sediment core AMD14-204 that was retrieved from the West Greenland shelf, offshore Upernavik, and which spans the last ca. 9,000 years. Quantification was done using a light microscope (Olympus BX53, University of New Brunswick) with phase contrast optics, at 1000x magnification.
    Keywords: Achnanthes groenlandica; Actinocyclus curvatulus; AGE; AMD14_1b; AMD14-204_CASQ; ArcticNet; Asteromphalus spp.; Bacterosira bathyomphala; Bacterosira bathyomphala, resting spores; Baffin Bay; Calypso square corer; CASQ; CCGS Amundsen; Chaetoceros affinis, resting spores; Chaetoceros debilis, resting spores; Chaetoceros diadema, resting spores; Chaetoceros radicans, resting spores; Chaetoceros spp. resting spores; Cocconeis californica; Cocconeis costata; Cocconeis scutellum; Cocconeis spp.; Coscinodiscus spp.; Counting, diatoms; Cymatotheca spp.; DEPTH, sediment/rock; diatoms; Diatoms, centrales; Diatoms, pennales; Diatoms, pennales indeterminata; Diploneis spp.; Fields; Fossula arctica; Fragilariopsis atlantica; Fragilariopsis cylindrus; Fragilariopsis nana; Fragilariopsis oceanica; Fragilariopsis reginae-jahniae; Fragilariopsis spp.; Geochemistry; Gomphonemopsis littoralis; Grammatophora angulosa var. islandica; Highly branched isoprenoid (HBI) biomarkers; Mass; Melosira arctica; Melosira setosa; Navicula spp.; Nitzschia spp.; Odontella aurita; Paralia sulcata; Pauliella taeniata; Podosira cf. stelligera; Porosira glacialis; Pseudogomphonema cf. kamtschaticum; Rhizosolenia hebetata forma hebetata; Rhizosolenia hebetata forma semispina; Rhizosolenia spp.; Shionodiscus oestrupii; Shionodiscus trifultus; Synedropsis recta; Tabularia tabulata; Thalassiosira anguste-lineata; Thalassiosira antarctica var. borealis; Thalassiosira antarctica var. borealis, resting spores; Thalassiosira bulbosa; Thalassiosira constricta; Thalassiosira eccentrica; Thalassiosira gravida; Thalassiosira hyalina; Thalassiosira hyperborea; Thalassiosira nordenskioldii; Thalassiosira spp.; Thalassiothrix longissima
    Type: Dataset
    Format: text/tab-separated-values, 4799 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Review Article: How does glacier discharge affect marine biogeochemistry and primary production in the Arctic? (2020)
    Copernicus Publications (EGU)
    Details
    Publication Date: 2023-02-08
    Description: Freshwater discharge from glaciers is increasing across the Arctic in response to anthropogenic climate change, which raises questions about the potential downstream effects in the marine environment. Whilst a combination of long-term monitoring programmes and intensive Arctic field campaigns have improved our knowledge of glacier–ocean interactions in recent years, especially with respect to fjord/ocean circulation, there are extensive knowledge gaps concerning how glaciers affect marine biogeochemistry and productivity. Following two cross-cutting disciplinary International Arctic Science Committee (IASC) workshops addressing the importance of glaciers for the marine ecosystem, here we review the state of the art concerning how freshwater discharge affects the marine environment with a specific focus on marine biogeochemistry and biological productivity. Using a series of Arctic case studies (Nuup Kangerlua/Godthåbsfjord, Kongsfjorden, Kangerluarsuup Sermia/Bowdoin Fjord, Young Sound and Sermilik Fjord), the interconnected effects of freshwater discharge on fjord–shelf exchange, nutrient availability, the carbonate system, the carbon cycle and the microbial food web are investigated. Key findings are that whether the effect of glacier discharge on marine primary production is positive or negative is highly dependent on a combination of factors. These include glacier type (marine- or land-terminating), fjord–glacier geometry and the limiting resource(s) for phytoplankton growth in a specific spatio-temporal region (light, macronutrients or micronutrients). Arctic glacier fjords therefore often exhibit distinct discharge–productivity relationships, and multiple case-studies must be considered in order to understand the net effects of glacier discharge on Arctic marine ecosystems.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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