| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Walther Herwig III | 252 | 26.05.2003 - 22.06.2003 | Labrador Sea Irminger Basin |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Bethke E. | Institut fur Fangtechnik der BFA Hamburg | Bremerhaven | Bremerhaven |
Ziel der Reise / Objectives of Cruise:
Hydroacoustic and trawl survey on redfish in the Irminger Sea and adjacent waters.The redfish occours in this area in a depth between 200 - 1000 m. In this depth interval we find also a deep scattering layer disturbin the estimation of the redfish aboundance by hydroacoustical mean. Therefore the aboundance is measured by hydroacoustic above the deep scattering layer and by trawl catches within and below this layer.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| ISH | Stransky Ch. | 24 | trawls | B14 Pelagic fish |
pelagic trawls in a depth range of 200 - 1000 m | no |
| IFH | Bethke E. | 31 | stations | B28 Acoustic reflection on marine organisms |
Hydrographical stations (pressure, temperature, salinity) | no |
| IFH | Bethke E. | 1889 | n miles | B28 Acoustic reflection on marine organisms |
SA values measured with the sounder EK500 depth range 0 - 500 m | no |