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
17.8.2019