| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Walther Herwig III | 253 | 26.06.2003 - 13.07.2003 | HAS |
North Sea Doggerbank German Bight Southern North Sea |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Zimmermann C. | Institut fur Seefischerei der BFA Hamburg | Bremerhaven | Bremerhaven | Karte Map |
Ziel der Reise / Objectives of Cruise:
Cruise WH 253 was conducted in the framework of the international hydroacousticsurvey on pelagic fish in the North Sea, which is co-ordinated by ICES. The working area was confined to the South-Eastern North Sea between 52?N and 57?N, and the 20 m depth line off the English, Dutch, Danish and German coasts. Acoustic measurements were conducted between 0600 and 2200 hrs on East-West or North-South transects with 15 or 30 nm spacing. For the identification of echo traces and further biological sampling, 27 hauls with a pelagic net were conducted. After each haul and at 65 additional stations, CTD profiles were recorded.
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 | Zimmermann C. | 27 | stations | B14 Pelagic fish |
Pelagic Trawl Hauls for Verification of Echoes: Species composition, Sub-Sampling of herring and Sprat for Lenght frequencies and Age Determination | no |
| IFH | Gotze E. | 1992 | n miles | G73 Single-beam echosounding |
Track used for Echo Integration | no |
| ISH | Zimmermann C. | 90 | stations | H00 Stations |
- | yes |
| ISH | Stein Manfred | 92 | stations | H10 CTD-Stations |
Vertical CTD Profiles | yes |
