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  • IMCOAST/IMCONet; Impact of climate induced glacier melt on marine coastal systems, Antarctica  (2)
  • 2015-2019  (2)
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  • 2015-2019  (2)
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  • 1
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    Unknown
    A compilation of physical oceanography CTD profiles (Conductivity, Temperature & Density), voltage, turbidity and salinity - 123 Stations in Potter Cove, KGI, Antarctic during 24 years of German-Argentinian cooperation (1991-2015) (2016)
    PANGAEA
    In:  Universidad Nacional de Córdoba
    Details
    Publication Date: 2024-02-16
    Description: FOR DOWNLOAD THE COMPLETE FILE PLEASE USE THE "OTHER VERSION". 363322 values, 1037 CTD profiles (Conductivity, Temperature & Density), salinity, voltage and pressure data compiled at 123 stations, spatially distribute in entire Potter Cove. Variable available: Coordinates of stations, depth sampling [m], water temperature [°C], potential temperature [°C], salinity [psu], density [kg/m^3], conductivity [mS/cm], turbidity [NTU], voltage [V], press [dbar].The depth has been classified into three categories 0-5 m; 5-15 m and over 15 m. 5 stations were monthly sampled: E1, E2, E3 (18, 17, 6 years, respectively); Faro and Peñon de Pesca (all months except June & July for 2 and 3 years, respectively). The other 118 stations belong to summer season only covering 1 to 5 years sampling. Transects for summer 1996/1997, 2007 and 2008 have been georeferenced and newly available. Device used: CTD/Rosette (CTD-RO).
    Keywords: IMCOAST/IMCONet; Impact of climate induced glacier melt on marine coastal systems, Antarctica
    Type: Dataset
    Format: application/zip, 21 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Physical oceanography in Potter Cove during 2011 to 2013 (2016)
    PANGAEA
    In:  Supplement to: Deregibus, Dolores; Quartino, Maria Liliana; Campana, Gabriela L; Momo, Fernando; Wiencke, Christian; Zacher, Katharina (2016): Photosynthetic light requirements and vertical distribution of macroalgae in newly ice-free areas in Potter Cove, South Shetland Islands, Antarctica. Polar Biology, 39(1), 153-166, https://doi.org/10.1007/s00300-015-1679-y
    Details
    Publication Date: 2024-02-16
    Description: In Potter Cove, Antarctica, newly ice-free areas appeared due to glacial retreat. Simultaneously, the inflow of sediment increased, reducing underwater photosynthetically active radiation (PAR, 400-700 nm). The aim of this study was to determine the photosynthetic characteristics of two macroalgal species colonizing three newly ice-free areas, A1, A2 and A3, with increasing degree of glacial influence from A1 to A3. Turbidity, salinity and temperature were measured, and light attenuation coefficients (Kd) calculated and considered as a proxy for glacial sediment input. The lower depth distribution of the red alga Palmaria decipiens and the brown alga Himantothallus grandifolius was 10 m in A3, 20 m in A2 and 30 m in A1. Both species were then collected, at 5 and 10 m at all areas. Photosynthetic parameters and the daily metabolic carbon balance (CB) were determined. Kd was significantly higher in A3 compared with A1 and A2. The CB of P. decipiens was significantly higher in A1 followed by A2 and A3, and significantly higher at shallower than at greater depth. For H. grandifolius CB was significantly lower in A3 and in A2 at deeper depths compared with the rest of areas and depths. The lower distribution limit of the algae was positively correlated to the light penetration. An increase in the sediment run-off due to global warming might lead to an elevation of the lower depth distribution limit but retreating glaciers can open new space for macroalgal colonization. These changes will probably affect macroalgal primary productivity in Potter Cove with consequences for the coastal ecosystem.
    Keywords: IMCOAST/IMCONet; Impact of climate induced glacier melt on marine coastal systems, Antarctica
    Type: Dataset
    Format: application/zip, 15 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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