From 1 - 10 / 225
  • The cruise EMB124 was carried out as a joined cruise of the environmental monitoring program of the Federal Maritime and Hydrographic Agency (BSH) and the Baltic Sea long term observation program of the Leibniz-Institute for Baltic Sea Research Warnemünde (IOW). It was the second cruise in a series of five expeditions performed annually. The data acquired are used for the regular national and international assessments of the state of the Baltic Sea, and provide the scientific basis for measures to be taken for the protection of the ecosystem Baltic Sea. The cruise was performed in appropriate weather conditions. All planned research activities were realised.

  • Studies of the spatial and temporal variations of hydrographic, hydrochemical and hydrobiological parameters in the frame of the COMBINE Programme of HELCOM as well as measurements for the IOW's long term data set. It was the first cruise in a series of five expeditions performed annually. The data acquired are used for the regular national and international assessments of the state of the Baltic Sea, and provide the scientific basis for measures to be taken for the protection of the ecosystem Baltic Sea. The cruise was performed mostly in appropriate weather conditions. Becouse of a gale from northern direction two days (7th to 8th February) are a stayed in the harbour of Slite (NE Gotland) waiting on weather. Most of the planned research activities were realised.

  • Monitoring

  • The major part of the cruise was used for investigation of near surface sediments at selected key-sites (type-localities for sand, mud and stone reefs) in German territorial waters and in the German exclusive economic zone (EEZ) of the Baltic Sea. In the frame of the German research project “SECOS” this was already the sixth cruise with focus on “functioning” of sedimentary deposits in relation to matter cycles (nutrients, gasses, pollutants) and sediment dynamics (transport, deposition). Special attention was paid on occurrence and activity of benthic macro fauna (bio-turbation) and on he fate of the freshly deposited organic matter. Another topic was to define bacterial communities in the different types of in terms of their composition and Sediment types, benthic colonization and bio-geochemical matter cycles are strongly dependent on environmental parameters as bathymetry, salinity, temperature, function. and oxygen. During the cruise, at the main SECOS-stations extensive work was done to obtain samples and measurements for characterizing these key sites on small scales. So called “Benthic Chambers” were deploy at 5 of the SECOS-stations for several days to measure “in situ” continuously hydro- chemical parameters and to collect water samples at a time series. Around the chambers or the key-sites, large numbers of surface sediment samples were taken by Multi-Corer and Grab sampler to investigate the “patchiness” or variability of benthic organisms as well as of sediment- and bio-geochemical parameters. Pore-water profiles obtained at short sediment cores are used for analysing water chemistry, nutrients and trace metals. CTD casts were run for online registration of temperature, salinity, oxygen, turbidity, chlorophyll etc. in the water column. Sea water samples were collected by bottles at selected depths for nutrient analyses. A large amount of pore-water and sea-water samples were measured on board for nutrients. In vicinity of the SECOS-key stations acoustic profiles (boomer, SES, MB) were run.

  • Categories  

    Monitoring stations from monitoring expedition of August 1985 with the oxygen concentration (points). Displayed areas of oxygen concentration (and hydrogen sulphide concentrations in the near bottom layer of the Baltic Sea. More details in the link "Marine Science Reports" (No. 100, chapter 3-5)

  • Categories  

    Monitoring stations from monitoring expedition of February 1986 with the oxygen concentration (points). Displayed areas of oxygen concentration (and hydrogen sulphide concentrations in the near bottom layer of the Baltic Sea. More details in the link "Marine Science Reports" (No. 100, chapter 3-5)

  • Categories  

    Monitoring stations from monitoring expedition of November 1987 with the oxygen concentration (points). Displayed areas of oxygen concentration (and hydrogen sulphide concentrations in the near bottom layer of the Baltic Sea. More details in the link "Marine Science Reports" (No. 100, chapter 3-5)

  • Categories  

    Monitoring stations from monitoring expedition of January 1994 with the oxygen concentration (points). Displayed areas of oxygen concentration (and hydrogen sulphide concentrations in the near bottom layer of the Baltic Sea. More details in the link "Marine Science Reports" (No. 100, chapter 3-5)

  • Categories  

    Monitoring stations from monitoring expedition of February 1995 with the oxygen concentration (points). Displayed areas of oxygen concentration (and hydrogen sulphide concentrations in the near bottom layer of the Baltic Sea. More details in the link "Marine Science Reports" (No. 100, chapter 3-5)

  • Categories  

    Monitoring stations from monitoring expedition of October 1995 with the oxygen concentration (points). Displayed areas of oxygen concentration (and hydrogen sulphide concentrations in the near bottom layer of the Baltic Sea. More details in the link "Marine Science Reports" (No. 100, chapter 3-5)