Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Solea	795	27.07.2021 - 13.08.2021	GSBTS	North Sea

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Stelzenmuller Vanessa	Thunen-Institut fur Seefischerei	Cuxhaven	Cuxhaven

Ziel der Reise / Objectives of Cruise:

1. Participation in the German Small-Scale Bottom Trawl Survey (GSBTS) to monitor the fish fauna in 5 out of 12 small areas (boxes), 2. Investigation of the hydrographical conditions within the boxes (vertical distribution of temperature, salinity and turbidity). 3. Experimental fisheries in the vicinity of one offshore windparks located in the German EEZ Narrative: FRV "Solea" left Cuxhaven on the 27th of July 2021 and started its scientific program the following day in Box P (see Figure 1). In general, the scientific program consisted of three days with 7 hauls per day within each box. Each day at least two CTD casts were deployed. The scheduled personnel exchange was carried out around noon of the 6th of August in Helgoland. The scientific program continued from the 7th until the 12th of August. The vessel returned to Cuxhaven on the 13th of August 2021. During this year's survey a total of 96 hauls with the cod hopper trawl net and 34 accompanying CTD casts were conducted in five boxes of the GSBTS assigned to FRV "Solea". Like in previous years the actual sequence of sampling in the boxes was adapted to the prevailing weather conditions (Box H (British EEZ; 3 days), Box P (German EEZ; 4 days), Box K (Danish EEZ; 2 days), Box N (German EEZ; 3 days), Box E (Dutch EEZ; 2 days). Box F was omitted from this year's survey due the experimental fishing around two offshore windfarms.

Messungen / Measurements