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  • 1990-1994  (2)
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  • 1
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    Unknown
    Short- and long-term changes in the benthic community of deeper parts of Kiel Bay (Western Baltic) due to oxygen depletion and eutrophication (1991)
    Parey
    In:  Meeresforschung-Reports on Marine Research, 33 (2-3). pp. 197-224.
    Details
    Publication Date: 2020-07-08
    Description: The increasing frequency, severity and spatial extent of oxygen depletion events in Kiel Bay caused drastic effects on the benthic community below the halocline. Based on published and unpublished data collected between 1953 and 1981 as well as on new investigations from 1981 to 1986, losses of total benthic biomass are estimated, and survivors and succession patterns during recovery are presented. The oxygen depletion in summer 1981 caused the most severe catastrophe ever observed in Kiel Bay and a disruption in the benthos history of that region. Strong fluctuations of benthic biomass were caused by oxygen depletion. A long-term change of total biomass was not observed. However, long-term changes in community composition are documented. Generally a change from K- to r-strategists, and from bigger to smaller individual size takes place. This may be mainly caused by an increase in organic input to the sediment due to eutrophication. Changes in hydrography or predation by demersal fish appear to be less important.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
    facet.materialart.
    Unknown
    Oxygen conditions in the deep water of Kiel Bay and the impact of inflowing salt-rich water from the Kattegat (1990)
    Parey
    In:  Meeresforschung-Reports on Marine Research, 33 (1). pp. 1-22.
    Details
    Publication Date: 2020-07-08
    Description: In the deep water of the southwestern part of Kiel Bay (Boknis Eck) the oxygen conditions have deteriorated significantly since the 1950s. Comparing data from Boknis Eck and Lightship Fehmarnbelt reveals that each distinct influx of salt-rich deep water from the Kattegat into the Baltic can be detected in the southwestern part of Kiel Bay a few weeks after it is observed in the Fehmarnbelt. Therefore, the frequency of deep water exchange seems to be about the same everywhere in the deeper parts of Kiel Bay. However, in summer, the oxygen content of the inflowing deep water is often very low when it reaches the northeastern part of Kiel Bay. For example, it was less than 40 % saturated in July 1984. This seems to contribute considerably to the general deterioration of oxygen conditions in this region
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Article in a Scientific Journal - peer-reviewed
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