Deutsches Ozeanographisches
Datenzentrum
Inventur der Heincke-Reise HE329 (DOD-Ref-No.20100365)
Inventory of Heincke Cruise HE329 (DOD-Ref-No.20100365)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Heincke | HE329 | 12.06.2010 - 23.06.2010 | Southern 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 | Cuxhaven | Bremerhaven |
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 VECTORS 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 VECTORS 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 |
---|---|---|---|---|---|---|
IHFHH | Floeter Jens | 74 | hauls | B09 Zooplankton |
Bongo net sampling (300 and 500 ?m), towed at 3 knots (surface to bottom) | no |
IHFHH | Floeter Jens | 22 | hauls | B14 Pelagic fish |
Pelagic fisheries with "Jungfischtrawl"-net | no |
IHFHH | Floeter Jens | 93 | stations | H10 CTD-Stations |
CTD casts (temperature, salinity, oxygen) | no |