External Organisations

  • Aarhus University, Denmark
  • Danish Meteorological Institute , Denmark
  • University of Copenhagen, Denmark

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The environment in the open Danish waters is controlled by a complex interplay between physical and biological processes, and it is therefore difficult to determine the exact cause of changes in the environment. This is also the situation for hypoxia, which is caused both by nutrients from sources ashore, by ecological dynamics of the waters, and by the flow in Kattegat and the Belts. This project will examine the marine environment through three-dimensional numerical models which describe both physical and biological processes. In parallel, laboratory experiments will clarify how temperature affects the biological rates at or near the sea floor. This will be used to model the response of the ecosystem to the temperature increases which are expected as a result of climate change, and the future consequences for the marine environment will be analyzed. By using model simulations and oxygen measurements from ships and buoys, the biological processes leading to hypoxia will be determined with the so far highest resolution in time and space; this will contribute significantly to the understanding of the functioning of the ecosystem in this area. The connection between the state of the marine environment and the abundance of fish will be analyzed, focusing on the distribution and spawning regions of cod, in relation to the oxygen conditions in the inner Danish waters and in the Baltic Sea. Thereby, the project will provide a description of interconnections between the ecosystem, the water flow, and the effects of a changing climate.

The project is coordinated by Department of Bioscience, Aarhus University, Denmark.


  • Research areas: Marine Living Resources & Oceanography & Marine Populations and Ecosystem Dynamics & Fish Biology
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ID: 2290947