Deutsches Ozeanographisches
Datenzentrum
Inventur der Heincke-Reise HE381 (DOD-Ref-No.20120410)
Inventory of Heincke Cruise HE381 (DOD-Ref-No.20120410)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Heincke | HE381 | 06.06.2012 - 13.06.2012 | ECODRIVE |
North Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Gloe Dominik | Institut fur Hydrobiologie und Fischereiwissenschaft der Universitat Hamburg | Helgoland | Bremerhaven | Karte Map |
Ziel der Reise / Objectives of Cruise:
Current understanding of the drivers of changes in North Sea ecosystem structure and function lacks a sufficient knowledge on historical (+50 years) ecosystem states in relation to climate, eutrophication and fisheries. The projects ECODRIVE and RANGESHIVT will assess, model and further the predictive understanding of changes in the trophodynamic structure and function within the North Sea relative to the different drivers of ecosystem change. The key planctivores sardine and anchovy are not novel species in the North Sea merely extending their habitat due to global warming. These zooplanktivores were previously established in the system (i.e., 70 years ago) at a time when the Atlantic Multidecadal Oscillation was in the same phase as currently observed. However, information on hydrography-related distribution as well as diet and size-specific feeding of sardine and anchovy in the North Sea is largely absent, preventing an analysis of their trophic role in the North Sea ecosystem during warm phases. The ECODRIVE cruise will be used to (1) quantify the diet selectivity of these zooplanktivores species and their potential competitors (herring, sprat, sandeel, mackerel and horse mackerel) and to (2) assess their role as prey for the main pelagic piscivores, which co-invade into the North Sea especially during warm phases, i.e., horse mackerel and mackerel.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
ZIMHH | Mollmann Christian | 3 | hauls | B09 Zooplankton |
WP-2, zooplankton sampling, vertical haul | no |
ZIMHH | Mollmann Christian | 5 | profiles | B09 Zooplankton |
Video-Plankton-Recorder, towed at 3 knots, undulating | no |
ZIMHH | Mollmann Christian | 15 | hauls | B09 Zooplankton |
Apstein net, zooplankton sampling, vertical haul | no |
ZIMHH | Mollmann Christian | 15 | hauls | B09 Zooplankton |
Multiple Closing Net, 5 nets closed in different water depths | no |
ZIMHH | Mollmann Christian | 29 | hauls | B09 Zooplankton |
Bongo net sampling (300 and 500 ?m), towed at 3 knots (surface to bottom) | no |
ZIMHH | Mollmann Christian | 13 | hauls | B14 Pelagic fish |
Pelagic fisheries with "Jungfischtrawl"-net | no |
ZIMHH | Mollmann Christian | 4 | profiles | B90 Other biological / fishery measurements |
Triaxus-system, towed body (echosounders, fluorometer, CTD and LOPC - undulated + fixed) | no |
UNIHH | Gloe Dominik | 51 | stations | H00 Stations |
- | yes |
ZIMHH | Mollmann Christian | 30 | stations | H10 CTD-Stations |
CTD casts (temperature, salinity, oxygen) | no |