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  • 1
    Book
    Book
    Microbial ecology of a brackish water environment (1977)
    Berlin : Springer
    Details Availability
    Keywords: Marine microbiology ; Microbial ecology ; Brackish water ecology ; Water microbiology ; Brackish water biology ; Microbial ecology ; Aufsatzsammlung ; Mikroorganismus ; Brackwasser ; Brackwasser ; Mikroorganismus
    Type of Medium: Book
    Pages: XI, 291 S. , graph. Darst.
    ISBN: 3540084924 , 0387084924
    Series Statement: Ecological studies 25
    URL: http://d-nb.info/780136470/04
    DDC: 576/.19/2
    RVK:
    WF 2200
    RVK:
    WI 1300
    Language: English
    Note: Literaturangaben
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  • 2
    Book
    Book
    Meereskunde der Ostsee (1996)
    Berlin : Springer
    Details Availability
    Keywords: Aufsatzsammlung ; Ostsee ; Meereskunde ; Ostsee ; Meereskunde
    Description / Table of Contents: Klappentext: Die Ostsee als eines der größten Brackwassermeere der Welt ist immer noch gefährdet, sie wird weiter durch Abwässer und Abfälle belastet, die Wasserdurchmischung ist begrenzt. Um dieses noch junge Meer als Lebensraum zu erhalten, ist eine umfassende Analyse und ein ständiges Überwachen der ozeanographischen und ökologischen Parameter dringend nötig. Renommierte Forscher der größten Ostseeinstitute beschreiben in dieser Meereskunde der Ostsee alle wesentlichen Aspekte, die das Ökosystem Ostsee ausmachen, wie Klima, Geologie, Physik, Chemie, Pflanzen, Tiere, industrielle Nutzung und Belastung sowie mögliche Schutzmaßnahmen. Auch der Ostseeliebhaber wird in diesem leichtverständlichen Buch mit den zahlreichen Abbildungen zu seinen Beobachtungen auf See und am Strand wertvolle Hintergrundinformationen finden.
    Type of Medium: Book
    Pages: XI, 338 S. , Ill., graph. Darst.
    Edition: 2. Aufl.
    ISBN: 3540593519 , 9783540593515
    URL: http://www.gbv.de/dms/bs/toc/189664525.pdf
    URL: http://www.gbv.de/dms/bs/toc/189664525.pdf
    URL: http://www.springer.com/de/book/9783540593515
    RVK:
    RZ 50402
    RVK:
    WI 4410
    RVK:
    RZ 50405
    RVK:
    TI 7000
    RVK:
    WI 7725
    Language: German
    Note: 1. Aufl. ersch. 1974 u.d.T.: Meereskunde der Ostsee / hrsg. von Lorenz Magaard , Literaturverz. S. [321] - 334
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  • 3
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    Bakteriologische Untersuchungen im Auftriebsgebiet vor der westafrikanischen Küste und im Sediment des Küstenschelfes (1973)
    Bornträger
    Details
    Publication Date: 2022-08-23
    Description: With the increasing aging of an upwelling body of water, a pronounced rise in the saprophyte counts was found at first in the surface water and later also in the deeper zones. They increased, for example, at a depth of 15 meters, from 30-50 to 250 bacteria/ml, which represents a production of 4 X 10-3 mg bacterial C/m3 water. Different bacteria populations were included on the medium used for isolation, which was prepared with both sea-water and fresh water. On the former, which had relatively few species represented, the spectrum ranged from whitish to yellowish-white halophilic marine bacteria. On the tap water medium, however, dominated a spectrum of white or vividly pigmented bacteria, comprising many species, with maximal development in fresh water. It is supposed that bacteria of terrestrial origin are involved here, which are possibly carried to the sea by sand or dust storms. With regard to the colony forms, no difference between the bacteria populations within or without the upwelling water could be determined. The greatest bacterial infiltration of the sediment was found on the surface (between 16 X 103 and 80 X 103 bacteria/cm3). Already in the upper 2 cm, a strong reduction of the saprophyte count was determined, together with a relative increase of those bacteria which possess a greater range of ecological amplitude. The saprophyte counts on the sediment surface decreased with an increase of water depth. On 21 strains of bacteria isolated from the open waters, investigations were carried out on their morphological characteristics and the most important metabolic reactions.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Influence of carbon availability on dentrification in the central Baltic Sea (2003)
    ASLO (Association for the Sciences of Limnology and Oceanography)
    In:  Limnology and Oceanography, 37 (6). pp. 1146-1163.
    Details
    Publication Date: 2018-03-20
    Description: Denitrification was investigated in the Baltic proper at two stations with different conditions in the deep water. The Gotland Deep was examined as an example of a basin with anoxic, H2S‐containing deep water and station T was taken as an example of low‐oxygen (〈0.2 ml liter−1), sulfide‐free deep water. Denitrification was measured by the acetylene blockage method; in addition, N2O reduction was followed in samples without acetylene. To shed light on the factors limiting denitrification, we compared in situ rates to denitrification after adding nitrate or electron donors. Denitrification was restricted to the layer of the oxic‐anoxic interface in the Gotland Deep and to the water layer near the sediment of station T. For both stations it could be shown that denitrification was not limited by nitrate availability. A lack of available organic C seemed to limit denitrification rates and growth of denitrifiers. As a result of C limitation in the water column, denitrification was restricted to energy‐rich interfaces. In the low‐oxygen water away from energy‐rich interfaces, the less C‐demanding nitrification‐denitrification coupling (NH4+ → N2O → N2) seemed to be favored. Denitrification in the water of the central Baltic seems to be subjected to strong variability due to changing C supply during the course of the year. However, limitation by C availability can be assumed for most of the year and should be taken into account in calculating the N budget of the Baltic.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.4319/lo.1992.37.6.1146
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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