Deutsches Ozeanographisches
Datenzentrum
Inventur der Clupea-Reise 278 (DOD-Ref-No.20140073)
Inventory of Clupea Cruise 278 (DOD-Ref-No.20140073)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Clupea | 278 | 06.01.2014 - 07.02.2014 | Mecklenburg Bight Baltic Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Mieske Bernd | Thunen-Institut fur Ostseefischerei | Rostock | Rostock |
Ziel der Reise / Objectives of Cruise:
The investigations of this trip had the objective to reduce the bycatch of flatfish in the bottom otter trawl fishery. The in bottom trawl caught flounder, plaice and dab should escape through laterally arranged grids, which were attached in front of the cod end. Tested were grids with the dimensions 47 cm x 90 cm and the angle of attack 45?. One grid consisted of flexible plastic the other of stainless steel. The catch masses of flounder, plaice and dab were reduced with the Flexi-Grid by 39%, 19% and 54% and with the steel grid by 56%, 38% and 49%.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
VTIOSF | Mieske Bernd | 44 | hauls | B64 Gear research |
Test of lateral grids to reduce bycatch of flatfish. 06.01.2014 | no |