Deutsches Ozeanographisches
Datenzentrum
Inventur der Alkor-Reise 251 (DOD-Ref-No.20050045)
Inventory of Alkor Cruise 251 (DOD-Ref-No.20050045)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Alkor | 251 | 24.01.2005 - 02.02.2005 | GLOBEC CODYSSEY |
Baltic Sea Gotland Basin Arkona Basin Bornholm Basin |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Haslob Holger | Leibniz-Institut fur Meereswissenschaften an der Universitat Kiel | Kiel | Kiel | Karte Map |
Ziel der Reise / Objectives of Cruise:
Within the two projects - CODYSSEY "Cod spatial dynamics and vertical movements in European waters and implications for fishery management", and - GLOBEC Germany "Trophic interaction between zooplankton and fish under the influence of physical processes" a hydrographic survey was run in the Arkona Basin. Additionally in the Bornholm Basin, the Stolpe Trench, the Gdansk Basin and in the Gotland Basin the survey also considered investigations on horizontal distribution of zoo- and ichthyplankton as well as on pelagic clupeid and gadoid fish. Other major goals were the description of abundance and biomass of zoo- and ichthyoplankton. Further emphasis was given on the meso- to small-scale horizontal distribution of their main predator fish species herring and sprat. Stock structure, gonadal maturation, egg production and survival of sprat and cod was investigated.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
AWILI | van Beusekom Justus | 33 | stations | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
Vertical multifluorescence measurements on station grid | no |
AWI | Renz J. | 14 | hauls | B09 Zooplankton |
Vertical zooplankton distributuion on few stations (Multinet) | no |
IOW | Dutz Joerg | 5 | hauls | B09 Zooplankton |
Zooplankton; Apstein net | no |
IOW | Dutz Joerg | 14 | hauls | B09 Zooplankton |
WP2 net hauls for zooplankton for experiments | no |
IFMGEO | Voss Rudiger | 33 | hauls | B13 Eggs/larvae |
Ichthyoplankton distribution; vertically integrated, Bongo net | no |
IFMGEO | Kraus Gerd | 8 | hauls | B14 Pelagic fish |
Pelagic fishery; Kombi Trawl | no |
IFMGEO | Stepputtis Daniel | 1350 | n miles | B28 Acoustic reflection on marine organisms |
Hydroacoustic measurement with 38khz echosounder; permanent | no |
IOW | Mohrholz Volker | 1350 | n miles | D71 Current profiler (e.g. ADCP) |
ADCP | no |
IOW | Dutz Joerg | 1 | grabs | G02 Grab |
Van Veen grab | no |
IOW | Mohrholz Volker | 58 | stations | H00 Stations |
- | yes |
IOW | Mohrholz Volker | 53 | hauls | H10 CTD-Stations |
Vertical CTD profiles on station grid | no |
IOW | Mohrholz Volker | 3 | transects | H11 Sub-surface measurements underway (T, S) |
Towed CTD system SCANFISH | no |