| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Alkor | AL461 | 30.07.2015 - 12.08.2015 | BONUS BIO-C3 CLISAP-2 |
Bornholm Basin Arkona Basin Baltic Sea Gotland Basin Kiel Bight Gdansk 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 | Kiel | Gdynia |
Ziel der Reise / Objectives of Cruise:
The cruise is conducted as a training course for advanced students at the IHF in the context of the master course of Marine Ecosystem and Fisheries Science at Hamburg University. On the cruise 6 students were trained on frequently used fisheries science and biological oceanography methods. The cruise was designed according to the standards of scientific cruises and coupled to ongoing research activities of the institute. The more advanced students can undertake sampling for the own master or PhD thesis. Students in earlier stages will be trained with specific small training projects as e.g. measuring the hydrography with CTD casts, which they will present as a report as well as a presentation in the synthesis seminar after the cruise. The cruise was designed to get informations about the fish and plankton distribution between the Kiel Bight and the Gotland Basin in the Baltic Sea. One important aspect was the recording of the planktonic prey of larval and adult lifestages of sprat and cod in different basins of the Baltic Sea with a Video-Plankton-Recorder (VPR) to get informations about small scale patchiness in zoopankton distribution and for the parameterisation of prey fields as input for consumption models. At the same time CTD and Bongo net sampling was performed to investigate the spatial distribution and development of zoo- and ichthyoplankton and its hydrographic environment. Another aspect was the investigation of spawning intensity of cod in the Bornholm Basin and the investigation of round goby vertical distribution.
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 | 3 | hauls | B09 Zooplankton |
Apstein net, Zooplankton sampling, vertical haul. | no |
| IHFHH | Herrmann Jens-Peter | 3 | hauls | B09 Zooplankton |
WP-2 net, zooplankton sampling, vertical haul. | no |
| IHFHH | Herrmann Jens-Peter | 8 | profiles | B09 Zooplankton |
Video-Plankton-Recorder, towed at 3 knots, undulating. | no |
| IHFHH | Herrmann Jens-Peter | 9 | hauls | B09 Zooplankton |
Multiple Closing Net (9), 9 nets closed in different water depths. | no |
| IHFHH | Herrmann Jens-Peter | 18 | hauls | B09 Zooplankton |
Multiple Closing Net (5), 5 nets closed in different water depths. | no |
| IHFHH | Herrmann Jens-Peter | 64 | hauls | B09 Zooplankton |
Bongo net sampling (150, 300, 500?m), towed at 3 knots (surface to bottom). | no |
| IHFHH | Herrmann Jens-Peter | 35 | hauls | B14 Pelagic fish |
Pelagic fisheries with "Jungfischtrawl"-net. | no |
| IHFHH | Herrmann Jens-Peter | 4 | hauls | B19 Demersal fish |
Demersal fisheries with 3m-Beam trawl. | no |
| IHFHH | Herrmann Jens-Peter | 82 | stations | H10 CTD-Stations |
CTD casts (temperature, salinity, oxygen). | no |