Deutsches Ozeanographisches
Datenzentrum
Inventur der Prof. A. Penck-Reise 04-16 (DOD-Ref-No.20040160)
Inventory of Prof. A. Penck Cruise 04-16 (DOD-Ref-No.20040160)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Prof. A. Penck | 04-16 | 28.06.2004 - 07.07.2004 | BLMP+ |
Baltic Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Nausch Monika | Leibniz-Institut fur Ostseeforschung, Warnemunde | Rostock | Rostock | Karte Map |
Ziel der Reise / Objectives of Cruise:
The aim of the cruise was the investigation of phosphorus dynamics and its relationship to nitrogen fixation in the Baltic Sea. Nitrogen fixation is performed only by cyanobacteria. Cyanobactria of the genus Nodularia and Aphanizomenon are the dominating organisms. The investigations were done in the Bornholm Basin and in the Eastern Gotland Basin (see appended map) in the surface layer above the thermocline (10-15 m). High concentrations of cyanobacteria were observed in the Eastern Gotland Basin, but not in the Bornholm Basin. During the cruise the wind speed ranged between 5 and 10 m/sec( BF 4-6). Therfore the cyanobactria were distributed in the surface layer and not accumulated an an surface film.
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 | Wasmund Norbert | 24 | samples | B01 Primary productivity |
Primary production via 13C incorporation | no |
IOW | Wasmund Norbert | 24 | samples | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
Chlorophyll determination, other pigments | no |
IOW | Wasmund Norbert | 24 | samples | B08 Phytoplankton |
Full sample, net sample, different depth | yes |
IOW | Nausch Monika | 7 | samples | B09 Zooplankton |
Plankton net 55?m and 200?m, mineralization experiments | no |
IOW | Wasmund Norbert | 24 | samples | B71 Particulate organic matter (e.g. POC, PON) |
CHN-analyser | no |
IOW | Nausch Monika | 24 | samples | B90 Other biological / fishery measurements |
Phosphate uptake | no |
IOW | Wasmund Norbert | 24 | samples | B90 Other biological / fishery measurements |
Nitrogen fixation | no |
IOW | Nausch Monika | 4 | stations | H00 Stations |
- | no |
IOW | Nausch Monika | 24 | samples | H09 Water bottle stations |
Rosett sampler | no |
IOW | Nausch Monika | 24 | samples | H10 CTD-Stations |
CTD casts + sensors for oxygen, temperature, fluorescence and light | no |
IOW | Nausch Gunther | 24 | samples | H22 Phosphates |
Phosphate (manual method) | no |
IOW | Nausch Gunther | 24 | samples | H23 Total - P |
Persulphate oxidation followed by phosphate determination | no |
IOW | Nausch Gunther | 24 | samples | H76 Ammonia |
Colorimetric standard method (manual) | no |