Deutsches Ozeanographisches
Datenzentrum
Inventur der Walther Herwig II-Reise 138 (DOD-Ref-No.19960201)
Inventory of Walther Herwig II Cruise 138 (DOD-Ref-No.19960201)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Walther Herwig II | 138 | 05.11.1993 - 29.11.1993 | North Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Thiele W. | Institut fur Fangtechnik der BFA Hamburg | Bremerhaven | Bremerhaven |
Ziel der Reise / Objectives of Cruise:
Underwater TV observation of bottom trawls. Selectivity trials with sorting grids, investigation of different bar distances and fish gears. Trials with different ground ropes to estimate the escapement rate of youngfish under the groundrope.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IFH | Thiele W. | 3 | no unit | B90 Other biological / fishery measurements |
Underwater video shots of sorting grids, sampling of fish length and weight data | no |