GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (275)
  • Data  (154)
Document type
Source
Keywords
Publisher
Years
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Build-up and decline of summer phytoplankton biomass in the eastern Weddell Sea, Antarctica (1994)
    Springer
    Polar biology 14 (1994), S. 413-422 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The seasonal development and decline of phytoplankton was investigated in the eastern Weddell Sea during summer and fall 1991. During the first half of the study (15 Jan–13 Feb) in an area off Vestkapp, favourable irradiance/mixing regimes initiated net phytoplankton growth in ice-free waters on the shelf and in stretches of open water over the partially ice-covered deep ocean. Chi a concentrations in the upper water column were moderate (0.2–0.8 μg l−1), but significantly above winter values. Later in the season (16 Feb–11 March), a phytoplankton bloom with surface Chl a concentrations ranging from 1.6–2.3 μg l−1 was encountered in an area further to the east. We suggest that the upper water column must have been stratified in this region for time scales of weeks to faciliate bloom development. Bacterial biomass and productivity generally paralleled the seasonal development of the phytoplankton. Nitrate concentrations in the upper mixed layer were substantially lower than would be expected from the existing phytoplankton standing stock, suggesting that heterotrophic consumption of organic matter by bacteria and zooplankton removed a large fraction of the primary production. The shallow seasonal pycnocline was eventually eroded by the passage of a storm, resulting in a homogeneous distribution of phytoplankton biomass over the entire water column, followed by sedimentation and deposition of phytodetritus on the sea floor. After the storm induced destratification, bacterial productivity was particularly high, amounting to more than half of the primary production (range: 10%–120%) in the upper water column. Subsequently, phytoplankton biomass in the upper water column decreased to values 〈1 μg Chl a l−1. The combination of low incident irradiances and incessant deep mixing prevented the phytoplankton biomass to increase again. During the last week of the investigation, extensive new-ice formation was observed. A major fraction of the residual surface plankton was incorporated into new sea ice, thus terminating the pelagic growth season of the phytoplankton in the eastern Weddell Sea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240262
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    facet.materialart.
    Unknown
    Continuous thermosalinograph oceanography along POLARSTERN cruise track ANT-XXIV/2 (2009)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXIV/2; AWI_PhyOce; CT; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; Physical Oceanography @ AWI; Polarstern; PS71/2-track; PS71 ANDEEP-SYSTCO SCACE; Salinity; South Atlantic Ocean; Temperature, water; Thermosalinograph; TSG; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 11553 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XVIII/5b, Punta Arenas - Punta Arenas, 2001-04-14 - 2001-05-08 (2015)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XVIII/5b; Calculated; Course; CT; DATE/TIME; LATITUDE; LONGITUDE; Polarstern; PS58; PS58/5b-track; Speed; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 7156 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unknown
    Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XXI/4, Cape Town - Cape Town, 2004-03-26 - 2004-05-07 (2015)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXI/4; Calculated; Course; CT; DATE/TIME; LATITUDE; LONGITUDE; Polarstern; PS65; PS65/4-track; Speed; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 11784 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XXIII/6, Cape Town - Cape Town, 2006-06-17 - 2006-08-21 (2015)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXIII/6; Calculated; Course; CT; DATE/TIME; LATITUDE; LONGITUDE; Polarstern; PS69; PS69/6-track; Speed; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 18904 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XXIV/2, Cape Town - Cape Town, 2007-11-28 - 2008-02-04 (2015)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXIV/2; Calculated; Course; CT; DATE/TIME; LATITUDE; LONGITUDE; Polarstern; PS71/2-track; PS71 ANDEEP-SYSTCO SCACE; South Atlantic Ocean; Speed; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 10040 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    Continuous thermosalinograph oceanography along POLARSTERN cruise track ANT-XXIII/6 (2007)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXIII/6; AWI_PhyOce; CT; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; Physical Oceanography @ AWI; Polarstern; PS69; PS69/6-track; Salinity; Temperature, water; Thermosalinograph; TSG; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 13476 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    Continuous thermosalinograph oceanography along POLARSTERN cruise track ANT-XXI/4 (2007)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXI/4; AWI_PhyOce; CT; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; Physical Oceanography @ AWI; Polarstern; PS65; PS65/4-track; Salinity; Temperature, water; Thermosalinograph; TSG; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 10106 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    Time series of geochemistry, and phytoplankton abundance in surface sediment off Dorum, Germany (2006)
    PANGAEA
    Details
    Publication Date: 2023-03-25
    Keywords: AWI_BioOce; Bacteria; Biological Oceanography @ AWI; Carbon, organic, total; Carbon, total; Chlorophyll a per unit sediment mass; Cyanobacteria; DATE/TIME; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatoms; Dorum; Germany; HAND; Nanoflagellates, heterotrophic; Nanoflagellates, phototrophic; Nitrogen, total; Phaeopigments per unit sediment mass; Porosity; Salinity; Sample ID; Sampling by hand; Temperature, air; Temperature, in rock/sediment
    Type: Dataset
    Format: text/tab-separated-values, 525 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 10
    facet.materialart.
    Unknown
    Amphipods in sediment traps of the eastern Fram Strait (2013)
    PANGAEA
    In:  Supplement to: Kraft, Angelina; Bauerfeind, Eduard; Nöthig, Eva-Maria; Klages, Michael; Beszczynska-Möller, Agnieszka; Bathmann, Ulrich (2013): Amphipods in sediment traps of the eastern Fram Strait with focus on the life-history of the lysianassoid Cyclocaris guilelmi. Deep Sea Research Part I: Oceanographic Research Papers, 73, 62-72, https://doi.org/10.1016/j.dsr.2012.11.012
    Details
    Publication Date: 2023-03-16
    Description: Life-cycle characteristics of the free-swimming lysianassoid amphipod Cyclocaris guilelmi were investigated and compared to those of other regularly appearing amphipods in the Arctic deep-sea community. In this context we analysed time-series data of meso- and bathypelagic amphipods collected as swimmers in moored sediment traps from 2004 to 2008 at the deep-sea long-term observatory HAUSGARTEN (79°N/4°E) in the eastern Fram Strait, Arctic Ocean. Six mesopelagic and three bathypelagic deep-sea amphipod species regularly occurred in the traps. The lysianassoid C. guilelmi showed a stable interannual population size and seasonal peaks in its occurrence from August to February during the five-year sampling period. The investigation of its population structure and reproduction ecology indicated year-round breeding behavior of this species. Up to 4 cohorts consisting mainly of juvenile and female C. guilelmi were observed. We conclude that C. guilelmi plays an important role within the Arctic amphipod deep water community.
    Keywords: Hausgarten; Long-term Investigation at AWI-Hausgarten off Svalbard
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...