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Erprobungs- und Entwicklungsvorhaben 'Osterrenaturierung' - Qualitative und quantitative Erfassung von Makrozoobenthos und des Mikrobenthos vor und nach den Renaturierungsmassnahmen

Pruefung der natuerlichen Selbstreinigungskraft eines technisch ausgebauten Gewaessers durch Rueckfuehrung in einen naturnahen Zustand am Beispiel der Oster. Fliessgewaesser, Gewaesserguete.

Funktion und Struktur subsystemspezifischer mikrobieller Gemeinschaften im Benthos der südlichen und zentralen Nordsee und deren Rolle in Stoff- und Energieaustauschprozessen

Aktuelle Modelle zur Beschreibung benthischer Prozesse in der Nordsee behandeln nur unvollständige Ausschnitte aus dem Gesamtsystem. Dies ist auf eine nur lückenhafte Kenntnis über die im Benthos ablaufenden Prozesse zurückzuführen. Im beantragten Forschungsvorhaben soll die strukturelle und funktionelle Charakterisierung benthischer mikrobieller Gemeinschaften in verschiedenen durch die Markofauna definierten Subsysteme der südlichen und zentralen Nordsee (Deutsche Bucht, Niederländische Küste, Oyster Ground, Doggerbank, östliche Nordsee, Skagerrak und Kattegat) untersucht werden. Zum Verständnis benthischer Prozesse soll zusätzlich der qualitative und quantitative Eintrag von organischem Material sowie dessen Umsetzung im System betrachtet werden. Durch parallele Untersuchungen der Makrofaunastruktur (Dr. I. Kröncke, Forschungsinstitut Senckenberg) werden Aufschlüsse über die Wechselwirkungen zwischen verschiedenen Größenklassen und deren Rolle am Transfer von organischem Material in den einzelnen Subsystemen erwartet. Aus dem Zusammenhang von Struktur und Funktion komplexer Gemeinschaften, die in diesem Umfang bislang noch nicht in der Nordsee untersucht wurden, werden Hinweise auf die Bedeutung verschiedenen benthischer Systeme für den Stoff- und Energieaustausch erwartet. Daher können die aus dem beantragten Forschungsvorhaben erwarteten Ergebnisse maßgeblich zum Verständnis benthischer Prozesse beitragen und der Modellierung zugeführt werden. Hauptauftragnehmer im Ausland: University Northeastern Boston; Boston.

Verbreitung und Gemeinschaften der Bodenfauna im Sublitoral der Deutschen Bucht

Das sublitorale Makrobenthos der Deutschen Bucht wurde in der 2. Jahreshaelfte 1975 auf der Grundlage eines umfangreichen Stationsnetzes in seinem Artenbestand, seiner Verbreitung und Vergesellschaftung untersucht. Die Untersuchung soll Vergleiche mit frueheren Erhebungen (Hagmeier: 1923/1924 und Stripp: 1965-1968) ermoeglichen und zur Beurteilung langfristiger Milieuveraenderungen dienen. Nach dem kalten Winter 1978/1979 wurde die Bodenfauna neu kartiert. In Zukunft werden im Abstand von mehreren Jahren derartige Erhebungen wiederholt, um langfristige Veraenderungen zu erfassen.

Physical oceanography during RV HEINCKE cruise HE660

Conductivity-temperature-depth profiles were measured using a Seabird SBE 911plus CTD during RV HEINCKE cruise HE660. The CTD was equipped with duplicate sensors for temperature (SBE3plus), conductivity (SBE4) and oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer and an altimeter (PSA-916 Teledyne (Benthos)) were mounted to the CTD. Temperature, conductivity and oxygen sensors are calibrated by the manufacturer once a year before being mounted in January. They are used throughout the year and no post-cruise or in-situ calibration is applied. All other sensors are calibrated irregularly. Data were connected to the station book of the specific cruise as available in the DSHIP database. Processing of the data including removal of obvious outliers followed the procedures described in CTD Processing Logbook of RV HEINCKE (hdl:10013/epic.47427). The processing report for this dataset is linked below.

Physical oceanography during RV HEINCKE cruise HE658

Conductivity-temperature-depth profiles were measured using a Seabird SBE 911plus CTD during RV HEINCKE cruise HE658. The CTD was equipped with duplicate sensors for temperature (SBE3plus), conductivity (SBE4) and oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer and an altimeter (PSA-916 Teledyne (Benthos)) were mounted to the CTD. Temperature, conductivity and oxygen sensors are calibrated by the manufacturer once a year before being mounted in January. They are used throughout the year and no post-cruise or in-situ calibration is applied. All other sensors are calibrated irregularly. Data were connected to the station book of the specific cruise as available in the DSHIP database. Processing of the data including removal of obvious outliers followed the procedures described in CTD Processing Logbook of RV HEINCKE (hdl:10013/epic.47427). The processing report for this dataset is linked below.

Physical oceanography during RV HEINCKE cruise HE656

Conductivity-temperature-depth profiles were measured using a Seabird SBE 911plus CTD during RV HEINCKE cruise HE656. The CTD was equipped with duplicate sensors for temperature (SBE3plus), conductivity (SBE4) and oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer and an altimeter (PSA-916 Teledyne (Benthos)) were mounted to the CTD. Temperature, conductivity and oxygen sensors are calibrated by the manufacturer once a year before being mounted in January. They are used throughout the year and no post-cruise or in-situ calibration is applied. All other sensors are calibrated irregularly. Data were connected to the station book of the specific cruise as available in the DSHIP database. Processing of the data including removal of obvious outliers followed the procedures described in CTD Processing Logbook of RV HEINCKE (hdl:10013/epic.47427). The processing report for this dataset is linked below.

Physical oceanography during RV HEINCKE cruise HE655/2

Conductivity-temperature-depth profiles were measured using a Seabird SBE 911plus CTD during RV HEINCKE cruise HE655/2. The CTD was equipped with duplicate sensors for temperature (SBE3plus), conductivity (SBE4) and oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer and an altimeter (PSA-916 Teledyne (Benthos)) were mounted to the CTD. Temperature, conductivity and oxygen sensors are calibrated by the manufacturer once a year before being mounted in January. They are used throughout the year and no post-cruise or in-situ calibration is applied. All other sensors are calibrated irregularly. Data were connected to the station book of the specific cruise as available in the DSHIP database. Processing of the data including removal of obvious outliers followed the procedures described in CTD Processing Logbook of RV HEINCKE (hdl:10013/epic.47427). The processing report for this dataset is linked below.

Raw data of physical oceanography during RV HEINCKE cruise HE660

Raw physical oceanography data was acquired by a ship-based Seabird SBE911plus CTD-Rosette system onboard RV HEINCKE . The CTD was equipped with duplicate sensors for temperature (SBE3plus) and conductivity (SBE4) as well as one sensor for oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer (FLRTD) and an altimeter (Teledyne Benthos PSA-916) were mounted to the CTD. The data was recorded using pre-cruise calibration coefficients. No correction, post-cruise calibration or quality control was applied. Processed profile data are available via the link below.

Raw data of physical oceanography during RV HEINCKE cruise HE659

Raw physical oceanography data was acquired by a ship-based Seabird SBE911plus CTD-Rosette system onboard RV HEINCKE . The CTD was equipped with duplicate sensors for temperature (SBE3plus) and conductivity (SBE4) as well as one sensor for oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer (FLRTD) and an altimeter (Teledyne Benthos PSA-916) were mounted to the CTD. The data was recorded using pre-cruise calibration coefficients. No correction, post-cruise calibration or quality control was applied. Processed profile data are available via the link below.

Physical oceanography during RV HEINCKE cruise HE659

Conductivity-temperature-depth profiles were measured using a Seabird SBE 911plus CTD during RV HEINCKE cruise HE659. The CTD was equipped with duplicate sensors for temperature (SBE3plus), conductivity (SBE4) and oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer and an altimeter (PSA-916 Teledyne (Benthos)) were mounted to the CTD. Temperature, conductivity and oxygen sensors are calibrated by the manufacturer once a year before being mounted in January. They are used throughout the year and no post-cruise or in-situ calibration is applied. All other sensors are calibrated irregularly. Data were connected to the station book of the specific cruise as available in the DSHIP database. Processing of the data including removal of obvious outliers followed the procedures described in CTD Processing Logbook of RV HEINCKE (hdl:10013/epic.47427). The processing report for this dataset is linked below.

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