Deutsches Ozeanographisches
Datenzentrum
Inventur der Meteor-Reise M87-3A (DOD-Ref-No.20120263)
Inventory of Meteor Cruise M87-3A (DOD-Ref-No.20120263)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Meteor | M87-3A | 29.05.2012 - 10.06.2012 | North Sea Baltic Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Labrenz Matthias | Leibniz-Institut fur Ostseeforschung, Warnemunde | Stavanger | Rostock |
Ziel der Reise / Objectives of Cruise:
The Baltic Sea with its natural gradients and strong reactions to climate change and anthropogenic activity can be used in an ideal way to examine basic ecological processes and their variability in marine ecosystems. The most striking characteristics of the Baltic Sea are the extended gradients in primary (topography, energy, salinity) and secondary (organisms, matter flux, oxygen, nutrients, sediments) environmental properties as a result of different dynamical processes. Leg M87/3a investigates the impact of salinity gradients on degradation of terrestrial dissolved organic matter (tDOC), microbially mediated processes, and on the structure and function of pelagic microbial communities in the Baltic Sea. Following aims were central to this study: (1) Assessment of structure and (selected) functions of pelagic microbial communities (Bacteria, Archaea, Zooplankton) in order to examine whether salinity-related phylogenetic shifts in microbial communities imply relevant functional changes. It provides the general background for the more specific question of decomposition dynamics of imported terrigenous compounds. (2) Quantification, chemical characterization and decomposition of discharged terrestrial DOC from Northern (arctic) soils in relation to microbial diversity. The aim is to assess the decomposition capacity for organic matter, particularly the degradation potential for introduced terrestrial carbon compounds, along the horizontal salinity gradient of the Baltic Sea. The overall aim of these studies is to gain a comprehensive understanding of the effect of imported terrigenous and autigenous organic material on microbial decomposition processes within the salinity and gradients of the Baltic Sea. To reach this goal, in general water, fixed water, zooplankton, as well as sediment samples were taken throughout a transect of 27 stations, covering the whole Baltic salinity gradient. Isotopes were analyzed continuously. Morever, microbial decomposition experiments were directly done on board.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IOW | Herlemann Daniel | 3 | dm? | B07 Pelagic bacteria / micro-organisms |
3 x 400 l Microbial organic matter decomposition experiments based on water of stations At1,3,4 (400 l) | no |
IOW | Jost G. | 27 | dm? | B07 Pelagic bacteria / micro-organisms |
27 x 200 l Sampling of fixed and non-fixed water for analysis of microbial gene expression | no |
IOW | Labrenz Matthias | 4 | dm? | B07 Pelagic bacteria / micro-organisms |
4 x 10 l Microbial organic matter decomposition experiments | no |
ISFWHV | Hofmann Thorben | 21 | hauls | B09 Zooplankton |
Sampling of zooplankton from surface waters throughout the transect, one vertical profile | no |
IOW | Klier Julia | 10 | cores | B16 Benthic bacteria / micro-organisms |
Sediment cores for analysis of protozoa diversity | no |
IOW | Labrenz Matthias | 1 | stations | H00 Stations |
- | yes |
USTOCK | Humborg Christoph | 4074 | km | H74 Carbon dioxide |
Isotopic composition of organic matter and inorganic carbon | no |
IOW | Labrenz Matthias | 1 | n miles | H80 Other physical measurements |
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on | yes |
Verankerungen / Moorings
Institut Institute |
Wissenschaftler Scientist |
Typ der Messungen Type of measurements |
Kommentar Comments |
geogr.Breite Latitude |
geogr.Länge Longitude |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IOW | Hehl U. | B73 | Deployed (02.06.12): 1 Mooring with 1 sediment trap at 50 m, 1 sediment trap at 70 m | 57° 19.0' N | 20° 6.0' E | no |
IOW | Hehl U. | B73 | Recovered, deployed (03.06.12): 1 Mooring with 1 trap at 55 m depth, 5 Micro-CAT, 1 ADCP | 57° 18.3' N | 20° 4.7' E | no |
IOW | Hehl U. | D71 | Recovered, deployed (03.06.12): 1 Mooring with 1 trap at 55 m depth, 5 Micro-CAT, 1 ADCP | 57° 18.3' N | 20° 4.7' E | no |