From 1 - 10 / 225
  • 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.

  • 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.

  • Within the framework of the COCOA project a third cruise was started to study the processes induced by Vistula river plume in the Bay of Gdanks during the annual major outflow period. Previous cruises took place in July 2014 and January/February 2015. Scientists from the Leibniz-Institute of Baltic Sea Research, University of Finland, and students from the University of Rostock and Galway were on board. The vessel left Rostock harbor February 27, 2016 in the morning and sailed without any delay to Gdynia. Arriving in the afternoon of the next day we met colleagues from the University of Gdansk and two students from the University joined the research team on board Elisabeth Mann Borgese. Station work started at February 29 at VE 07 with the deployment of a small lander system which was programmed to collect water above the sediment in fine vertical resolution into syringes to resolve nutrient concentrations above the sea bottom. Water sampling with a CTD and bottle system and sediment sampling followed. Our study area was sampled from the most eastward station VE27 to station VE46 off Hel peninsula, the latter is a regularly visited Polish monitoring station. We could thus cover the outflow region and beyond. We studied the BBL in detail and sediment processes, thus focusing on nitrification, denitrification, anammox and dissimilative nitrate reduction to ammonia (DNRA) pathways. The large variety of sediment types in the vicinity of the coast causes different sediment permeabilities which are expected to impact the processing of nutrients and particles in the bottom near layer and in sediments. From the some cores we collected we subsampled for permeability, grain size, pore water nutrient concentrations and organic matter content. Sediments were incubated to estimate microbial N-turnover. Altogether 25 stations were sampled from February 29 to March 10 2016 with CTD casts and on most stations also sediments with grabs, multicorer (MUC), box corer, and/or Haps corer, respectively were taken. We had 9 lander deployments for short term periods between one and 12 hours.

  • The cruise EMB-135 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 fourth 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 Baltic Sea ecosystem. The cruise was mainly performed in appropriate weather conditions but 5 stations were canceled because of rough sea conditions and stormy wind.

  • 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 Cruise in the frame of the Combine programme of HELCOM

  • Categories  

    Monitoring stations from monitoring expedition of February 2000 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 March 1976 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 March 1999 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)