Deutsches Ozeanographisches
Datenzentrum
Inventur der Johan Hjort-Reise 2004204 (DOD-Ref-No.20041216)
Inventory of Johan Hjort Cruise 2004204 (DOD-Ref-No.20041216)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Johan Hjort | 2004204 | 19.03.2004 - 18.04.2004 | North Atlantic Ocean |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Heino Mikko | Institute of Marine Research Bergen | Bergen | Bergen |
Ziel der Reise / Objectives of Cruise:
An annual acoustic survey in the spawning area of blue whiting, west of the British Isles. The objectives are 1) Estimation of the size of blue whiting spawning stock with acoustic methods complemented with trawl sampling. 2) Collecting biological samples and mezsurements on blue whiting. 3) Hydrographic observations.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IMRN | Heino Mikko | 43 | hauls | B13 Eggs/larvae |
80 cm plankton dip net 0-200 m | no |
IMRN | Heino Mikko | 32 | hauls | B14 Pelagic fish |
Pelagic trawl hauls in 150-700 m depths | no |
IMRN | Heino Mikko | 4 | hauls | B19 Demersal fish |
Bottom trawl hauls in 350-500 m depth | no |
IMRN | Heino Mikko | 3315 | n miles | B28 Acoustic reflection on marine organisms |
Fisheries acoustics along the cruise track with EK500 echosounder (18&38 kHz) | no |
IMRN | Soeiland Henrik | 103 | stations | H10 CTD-Stations |
CTD stations with SBE911 sonde | no |
IMRN | Soeiland Henrik | 3950 | n miles | H71 Surface measurements underway (T, S) |
Termosalinograph (SBE21) | no |