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P 317/3 - Poseidon cruise 2004

Duration: 29 September - 13 October 2004
Research Area: Western Black Sea
Ports: Istanbul - Istanbul
Chief Scientist: Bo Barker Joergensen (MPI) participants







Cruise objectives






JAGO onboard of RV POSEIDON




View of a carbonate chimney through the "porthole"


Sampling with the manipulator arm


Another important issue in the framework of the project was the investigation of the microbially mediated methane turnover in the zones of methane accumulation within the sediment.


Main cruise objectives:

Hydro-acoustic mapping of subsurface gas plumes

High-resolution bathymetric mapping and mapping of gas seeps by hydro-acoustic detection of gas flares in the water column

Quantification of microbial turnover of gassy sediments and microbial mats

Characterization of geochemical conditions for the anaerobic methane oxidation and its regional variation

Characterization and identification of microorganisms involved in the anaerobic methane oxidation in the sediment and in microbial mats

(Click here for more information on research goals)



Working areas

Three working areas were chosen according to existing information on gas seeps distribution, accumulations of free gas in the sediment, and sediment geochemistry:

1 - Danube Canyon
2 - North-western shelf
3 - Paleo-Dniepr area






Click on thumbnail to enlarge cruise track of P317/3

Literature