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
  • GEOMAR Catalogue / E-Books  (3)
  • Data  (12)
Document type
Source
Keywords
Publisher
Language
Years
DDC
  • 1
    Online Resource
    Online Resource
    Bonus Viable Ecosystems: BLUEPRINT - Biological Lenses Using Gene Prints : Abschlussbericht zu FKZ: 03F0679A : Laufzeit des Vorhabens: 01.01.2014-30.04.2018, Berichtszeitraum: 01.01.2014-30.04.2018 (2018)
    [Rostock] : [Leibniz-Institut für Ostseeforschung Warnemünde (IOW)]
    Details Availability
    Keywords: Forschungsbericht ; Ökosystemforschung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (24 Seiten, 1,20 MB) , Illustrationen, Diagramme
    URL: https://doi.org/10.2314/KXP:1693328798
    DOI: 10.2314/KXP:1693328798
    Language: German
    Note: Förderkennzeichen BMBF 03F0679A , Verbundnummer 01149363 , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    GEOMAR CATALOGUE
    Link to Library Catalog
    get availability status
  • 2
    Online Resource
    Online Resource
    Climate warming in winter affects the coupling between phytoplankton and bacteria during the spring bloom: a mesocosm study (2008)
    Associated volumes
    Details Availability
    In: Aquatic microbial ecology, Oldendorf, Luhe : Inter-Research, 1995, 51(2008), 2, Seite 105-115, 1616-1564
    In: volume:51
    In: year:2008
    In: number:2
    In: pages:105-115
    Description / Table of Contents: The response of the phytoplankton and bacterial spring succession to the predicted warming of sea surface temperature in temperate climate zones during winter was studied using an indoor-mesocosm approach. The mesocosms were filled with winter water from the Kiel Fjord, Baltic Sea. Two of them were started at ~2ʿC and the temperature was subsequently increased according to the decadal temperature profile of the fjord (Delta T 0ʿC, baseline treatment). The other mesocosms were run at 3 elevated temperatures with differences of Delta T +2, +4 and +6°C. All mesocosms were exposed to the same light conditions. Timing of peak phytoplankton primary production (PP) during the experimental spring bloom was not significantly influenced by increasing temperatures, whereas the peak of bacterial secondary production (BSP) was accelerated by about 2 d per °C. This suggests that, in case of warming, the spring peak of bacterial degradation of organic matter (in terms of BSP) would occur earlier in the year. Furthermore, the lag time between the peaks of PP and BSP (about 16 d for Delta T 0°C) would diminish progressively at elevated temperatures. The average ratio between BSP and PP increased significantly from 0.37 in the coldest mesocosms to 0.63 in the warmest ones. Community respiration and the contribution of picoplankton (〈3 Mym fraction) to this also increased at elevated temperatures. Our results lead to the prediction that climate warming during the winter/ early spring in temperate climate zones will favor bacterial degradation of organic matter by tightening the coupling between phytoplankton and bacteria. However, if PP is reduced by warming, as in our experiments, this will not necessarily lead to increased recycling of organic matter (and CO2).
    Type of Medium: Online Resource
    ISSN: 1616-1564
    DOI: 10.3354/ame01198
    Language: English
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    GEOMAR CATALOGUE
    Link to Library Catalog
    get availability status
  • 3
    Online Resource
    Online Resource
    The impact of climate change on phytoplankton - bacterioplankton interactions (2009)
    Details Availability
    Keywords: Hochschulschrift ; Phytoplankton ; Klimaänderung
    Description / Table of Contents: Global warming has already and is continuing to impact the global oceans. Half of the global primary production is performed by phytoplankton in the oceans and heterotrophic marine bacteria channel a substantial amount of primary organic carbon through the microbial loop. Understanding the influence of climate change on these important processes is therefore essential for an assessment of the vulnerability of the carbon cycle and possible feedbacks. This thesis reports results from investigations on the temperature dependent coupling between phytoplankton and bacterioplankton, with respect to additional effects of light intensity and inorganic nutrient concentrations. During four consecutive years, mesocosm experiments with natural Kiel Fjord winter plankton communities investigated the influences of increasing water temperatures of up to ?T +6ʿC and different light intensities between 16 and 100% of natural incident light. In an additional microcosm experiment with a single algal species and the natural bacterial community, two inorganic nutrient concentrations were used, in order to evaluate the combined effects of temperature and substrate on the algal-bacterial coupling. Summarising the results from all experiments it can be concluded, that increasing temperatures generally led to an increased heterotrophic bacterial organic substrate utilisation relative to primary production. In combination with a further brightening, the supplemental promotion of primary production would increase the absolute amounts of cycled organic matter. Future increasing P-limitation in coastal waters would lead not only to an enhanced absolute amount of cycled carbon, but additionally to an increased relative amount of remineralised organic carbon through the microbial loop. An enhanced organic matter transfer through the microbial loop has the potential to alter the whole structure and functioning of the marine food web and the biological sequestration of carbon to depth. Additionally, a substantial rise of CO2 emissions through enhanced respiration represents a positive feedback loop to the global climate change problem.
    Type of Medium: Online Resource
    Pages: Online-Ressource (pdf-Datei: 199 S., 1,7 MB)
    URL: http://eldiss.uni-kiel.de/accept.htm?http://eldiss.uni-kiel.de/macau/servlets/MCRFileNodeServlet/dissertation_derivate_00003001/diss_pbreithaupt_2009.pdf?hosts=
    URL: http://nbn-resolving.de/urn:nbn:de:gbv:8-diss-44468
    URL: http://d-nb.info/1019869682/34
    URL: http://macau.uni-kiel.de/receive/dissertation_diss_00004446
    URN: urn:nbn:de:gbv:8-diss-44468
    DDC: 578.77622
    Language: English
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    GEOMAR CATALOGUE
    Link to Library Catalog
    get availability status
  • 4
    facet.materialart.
    Unknown
    Impact of dissolved inorganic carbon concentrations and pH on growth of the chemolithoautotrophic epsilonproteobacterium GD1 (2015)
    PANGAEA
    In:  Supplement to: Mammitzsch, Kerstin; Jost, Günter; Jürgens, Klaus (2014): Impact of dissolved inorganic carbon concentrations and pH on growth of the chemolithoautotrophic epsilonproteobacterium Sulfurimonas gotlandica GD1 _T. Microbiology Open, 3(1), 80-88, https://doi.org/10.1002/mbo3.153
    Details
    Publication Date: 2023-02-24
    Description: Epsilonproteobacteria have been found globally distributed in marine anoxic/sulfidic areas mediating relevant transformations within the sulfur and nitrogen cycles. In the Baltic Sea redox zones, chemoautotrophic epsilonproteobacteria mainly belong to the Sulfurimonas gotlandica GD17 cluster for which recently a representative strain, S. gotlandica GD1T, could be established as a model organism. In this study, the potential effects of changes in dissolved inorganic carbon (DIC) and pH on S. gotlandica GD1T were examined. Bacterial cell abundance within a broad range of DIC concentrations and pH values were monitored and substrate utilization was determined. The results showed that the DIC saturation concentration for achieving maximal cell numbers was already reached at 800 µmol/l, which is well below in situ DIC levels. The pH optimum was between 6.6 and 8.0. Within a pH range of 6.6-7.1 there was no significant difference in substrate utilization; however, at lower pH values maximum cell abundance decreased sharply and cell-specific substrate consumption increased.
    Keywords: BIOACID; Biological Impacts of Ocean Acidification
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    Dissolved organic matter, chlorophyll a and bacterial abundance measured in water samples of POLARSTERN cruise PS111 (ANT-XXXIII/2) (2021)
    PANGAEA
    Details
    Publication Date: 2023-11-15
    Description: Global warming poses new threats to marine ecosystems since rising seawater temperature potentially induces cascading effects in biogeochemical cycles and food webs. Heterotrophic bacteria are the main producers of CO2 in the ocean, thereby counteracting the biological drawdown of CO2 by primary production. In Antarctic marine systems, low seawater temperature, and the low availability of labile organic matter are major environmental constraints on bacterial growth and degradation activity. However, temperature and the availability of resources for heterotrophic bacteria undergo considerable change induced by climate warming combined with subsequent ice melt and changes in primary productivity. This project aims to test single and combined effects of temperature and organic matter availability on Antarctic marine bacterioplankton. This data set includes biological and biogeochemical parameters measured alongside the CTD casts during the Polarstern cruise PS111 to the Weddell Sea. Samples were collected in the upper 100 m of the water column at the Eastern Weddell Sea Shelf and at the Filchner-Ronne ice shelf. Concentrations of different components of dissolved organic matter and inorganic nutrients as well as chlorophyll a concentrations and bacterial cell numbers are reported.
    Keywords: Alanine; Amino acids, dissolved; Amino acids, dissolved, Carbon; ANT-XXXIII/2; Arabinose; Arginine; Aspartic acid; Auto-analyzer (QuAAtro, Seal analytical); Grasshoff et al., 1983; Bacteria; Bottle number; Carbohydrates, dissolved combined; Carbohydrates, dissolved combined, Carbon; Carbon, organic, dissolved; Chlorophyll a; CombiBac; Cruise/expedition; CTD; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bathymetric; DEPTH, water; Ecology & Environment; Event label; Flow cytometry system, Becton Dickinson, FACSCalibur; Fluorometer; Welschmeyer, 1994; Fucose; Galactosamine; Galactose; Galacturonic acid; gamma-Aminobutyric acid; Glucosamine; Glucose; Glucuronic acid; Glutamic acid; Glycine; High-performance anion-exchange chromatography coupled with pulsed amperometric detection (ICS 3000, Dionex); Engel and Händel (2011); High-temperature catalytic oxidation method (TOC-VCSH, Shimadzu) (Qian and Mopper, 1996); HPLC system (Agilent 1260); Lindroth and Mopper, 1979; Isoleucine; Kombinierte Effekte von Temperatur und Ressourcenverfügbarkeit auf den Abbau von organischem Material durch Antarktisches Bakterioplankton; LATITUDE; Lazarev Sea; Leucine; LONGITUDE; Mannose/Xylose; Microbiology; Nitrate; Nitrite; Phenylalanine; Phosphate; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; PS111; PS111_101-1; PS111_10-2; PS111_12-2; PS111_123-1; PS111_131-1; PS111_132-1; PS111_137-2; PS111_140-1; PS111_14-1; PS111_16-1; PS111_17-1; PS111_22-1; PS111_28-1; PS111_33-1; PS111_37-2; PS111_40-3; PS111_47-1; PS111_51-1; PS111_58-1; PS111_62-1; PS111_68-1; PS111_74-1; PS111_82-1; PS111_89-1; PS111_9-3; Rhamnose; Sample ID; Serine; Silicate, inorganic, dissolved; South Atlantic Ocean; SPP1158; Station label; Threonine; Tyrosine; Valine; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 5156 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    Bacterial biomass production measured in water samples of POLARSTERN cruise PS111 (ANT-XXXIII/2) (2021)
    PANGAEA
    Details
    Publication Date: 2023-10-28
    Description: Global warming poses new threats to marine ecosystems since rising seawater temperature potentially induces cascading effects in biogeochemical cycles and food webs. Heterotrophic bacteria are the main producers of CO2 in the ocean, thereby counteracting the biological drawdown of CO2 by primary production. In Antarctic marine systems, low seawater temperature, and the low availability of labile organic matter are major environmental constraints on bacterial growth and degradation activity. However, temperature and the availability of resources for heterotrophic bacteria undergo considerable change induced by climate warming combined with subsequent ice melt and changes in primary productivity. This project aims to test single and combined effects of temperature and organic matter availability on Antarctic marine bacterioplankton. This data set includes measurements on bacterial biomass production at 0°C and 3°C measured alongside the CTD casts during the Polarstern cruise PS111 to the Weddell Sea. Samples were collected in the upper 100 m of the water column at the Eastern Weddell Sea Shelf and at the Filchner-Ronne ice shelf.
    Keywords: ANT-XXXIII/2; Bacterial production; CombiBac; CTD/Rosette; CTD-RO; DEPTH, water; Ecology & Environment; Estimated; Event label; Incorporation of 14C-leucine (Simon and Azam, 1989, http://www.int-res.com/articles/meps/51/m051p201.pdf; Simon et al. 2004, doi:10.4319/lo.2004.49.4.1035); Incubation temperature; Kombinierte Effekte von Temperatur und Ressourcenverfügbarkeit auf den Abbau von organischem Material durch Antarktisches Bakterioplankton; Lazarev Sea; Microbiology; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; PS111; PS111_101-1; PS111_10-2; PS111_12-2; PS111_123-1; PS111_131-1; PS111_132-1; PS111_137-2; PS111_140-1; PS111_14-1; PS111_16-1; PS111_17-1; PS111_22-1; PS111_28-1; PS111_33-1; PS111_37-2; PS111_40-3; PS111_47-1; PS111_51-1; PS111_58-1; PS111_62-1; PS111_68-1; PS111_74-1; PS111_82-1; PS111_89-1; PS111_9-3; Sample ID; South Atlantic Ocean; SPP1158; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 2548 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    Dynamics of halocarbons in coastal surface waters during short term mesocosm experiments (2015)
    PANGAEA
    In:  Leibniz Institute for Baltic Sea Research, Warnemünde | Supplement to: Orlikowska, Anna; Stolle, Christian; Pollehne, Falk; Jürgens, Klaus; Schulz-Bull, Detlef (2015): Dynamics of halocarbons in coastal surface waters during short term mesocosm experiments. Environmental Chemistry, 12(4), 515, https://doi.org/10.1071/EN14204
    Details
    Publication Date: 2024-02-01
    Description: The aim of the present study was to evaluate the influence of different light quality, especially ultraviolet radiation (UVR), on the dynamics of volatile halogenated organic compounds (VHOCs) at the sea surface. Short term experiments were conducted with floating gas-tight mesocosms of different optical qualities. Six halocarbons (CH3I, CHCl3, CH2Br2, CH2ClI, CHBr3 and CH2I2), known to be produced by phytoplankton, together with a variety of biological and environmental variables were measured in the coastal southern Baltic Sea and in the Raunefjord (North Sea). These experiments showed that ambient levels of UVR have no significant influence on VHOC dynamics in the natural systems. We attribute it to the low radiation doses that phytoplankton cells receive in a normal turbulent surface mixed layer. The VHOC concentrations were influenced by their production and removal processes, but they were not correlated with biological or environmental parameters investigated. Diatoms were most likely the dominant biogenic source of VHOCs in the Baltic Sea experiment, whereas in the Raunefjord experiment macroalgae probably contributed strongly to the production of VHOCs. The variable stable carbon isotope signatures (d13C values) of bromoform (CHBr3) also indicate that different autotrophic organisms were responsible for CHBr3 production in the two coastal environments. In the Raunefjord, despite strong daily variations in CHBr3 concentration, the carbon isotopic ratio was fairly stable with a mean value of -26 per mil. During the declining spring phytoplankton bloom in the Baltic Sea, the d13C values of CHBr3 were enriched in 13C and showed noticeable diurnal changes (-12 per mil ± 4). These results show that isotope signature analysis is a useful tool to study both the origin and dynamics of VHOCs in natural systems.
    Keywords: SOPRAN; Surface Ocean Processes in the Anthropocene
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    Maximum ingestion and maximum clearance rate of Nanoflagellates determined experimentally (2014)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Keywords: Biomass as carbon per individual; Clearance rate per individual; EXP; Experiment; Nanoflagellates_FEEDEXP; Taxon/taxa; Treatment: temperature; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 15 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    Halocarbons in coastal Baltic Sea - mesocosm experiment (2011) (2016)
    PANGAEA
    In:  Leibniz Institute for Baltic Sea Research, Warnemünde
    Details
    Publication Date: 2024-02-01
    Keywords: 1-Iodoethane; Algae abundance; Ammonia; Bacteria; Baltic Sea; Baltic-Sea-mesocosm-2011; Bromodichloromethane; Chloroiodomethane; Chlorophyll a; DATE/TIME; DEPTH, water, experiment; Dibromochloromethane; Dibromomethane; Diiodomethane; Eukaryotes; Experimental treatment; Identification; Iodomethane; MESO; Mesocosm experiment; Nanoeukaryotes; Nitrate; Nitrite; Phosphate; Picoeukaryotes; Radiation, photosynthetically active; Salinity; Silicate; SOPRAN; Surface Ocean Processes in the Anthropocene; Synechococcus; Temperature, air; Temperature, water; Thymidine incorporation rate; Tribromomethane; Tribromomethane, δ13C; Trichloromethane
    Type: Dataset
    Format: text/tab-separated-values, 1174 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 10
    facet.materialart.
    Unknown
    Halocarbons in Raunefjord, Norway - a mesocosm experiment (2016)
    PANGAEA
    In:  Leibniz Institute for Baltic Sea Research, Warnemünde
    Details
    Publication Date: 2024-02-01
    Keywords: 1-Iodoethane; Algae abundance; Bacteria; Bromodichloromethane; Chloroiodomethane; Chlorophyll a; DATE/TIME; DEPTH, water, experiment; Dibromochloromethane; Dibromomethane; Diiodomethane; Eukaryotes; Experimental treatment; Identification; Iodomethane; MESO; Mesocosm experiment; Nanoeukaryotes; Picoeukaryotes; Radiation, photosynthetically active; Raunefjord-mesocosm-2011; SOPRAN; Surface Ocean Processes in the Anthropocene; Synechococcus; Temperature, air; Temperature, water; Thymidine incorporation rate; Tribromomethane; Tribromomethane, δ13C; Trichloromethane
    Type: Dataset
    Format: text/tab-separated-values, 1122 data points
    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...