Deutsches Ozeanographisches
Datenzentrum
Inventur der Alkor-Reise AL498 (DOD-Ref-No.20170032)
Inventory of Alkor Cruise AL498 (DOD-Ref-No.20170032)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Alkor | AL498 | 30.07.2017 - 11.08.2017 | BONUS BIO-C3 |
Baltic Sea Gotland Basin Bornholm Basin Arkona Basin Mecklenburg Bight |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Herrmann Jens-Peter | Institut fur Hydrobiologie und Fischereiwissenschaft der Universitat Hamburg | Warnemunde | Kiel |
Ziel der Reise / Objectives of Cruise:
On this cruise, five students of the Institute for Hydrobiology and Fisheries Science (IHF) were given the opportunity to learn about the most commonly used scientific methods, gears and working procedures on board a research vessel for fisheries science as well as biological oceanography. The students learned these skills on a scientific cruise with pursues current research objectives within running third-party funded projects of the IHF. One important aspect of the cruise was the sampling of planktivorous prey (larval to adult life stages) of sprat and cod in different basins of the Baltic Sea. Sampling was conducted with plankton nets as well as a Video Plankton Recorder (VPR). The VPR recordings were needed for the parameterisation of prey concentration and composition in consumption models. The other important aspect of the cruise was the investigation of fish and plakton distribution (most important of sprat), in the Mecklenburg Bay, Arkona Basin, Bornholm Basin and Gotland Basin.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IHFHH | Herrmann Jens-Peter | 4 | profiles | B09 Zooplankton |
Video-Plankton-Recorder, towed at 2 knots | no |
IHFHH | Herrmann Jens-Peter | 13 | hauls | B09 Zooplankton |
Multiple Closing Net, 5 nets closed in different water depths, trawled | no |
IHFHH | Herrmann Jens-Peter | 32 | hauls | B14 Pelagic fish |
Pelagic fisheries with "Jungfischtrawl"-net | no |
IHFHH | Herrmann Jens-Peter | 3 | hauls | B19 Demersal fish |
Demersal fisheries with 3 m Beamtrawl | no |
IHFHH | Herrmann Jens-Peter | 23 | stations | H00 Stations |
- | yes |
IHFHH | Herrmann Jens-Peter | 13 | stations | H10 CTD-Stations |
CTD casts (temperature, salinity, oxygen) | no |