Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Solea I	444	28.06.1999 - 15.07.1999		North Sea

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Gotze E.	Bundesforschungsanstalt fur Fischerei	Busum	Busum

Ziel der Reise / Objectives of Cruise:

Hydroacoustic estimation of pelagic fish stocks in the North Sea. RV "Solea" left the port of Busum on 30th June with delay. Because of technical problems the cruise had to be interrupted for 10 days. To cope with the significantly reduces survey time, the remaining survey effort was concentrated on an area where the main part of herring was found during the last years. The limits of this area were 56?30N to 55?N, and 4?W to rhw 20m depth line off the Danish coast. The parallel transects were directed in west-east direction with a spacing of 15 n.m. The acoustic measurements were performed with the Simrad echosounder EK500 on 38 kHz connected to the Bergen-Integrator BI500. A single beam transducer 38-26 was installed in a towed body. For the identification of echogram traces 10 trawl hauls were carried out. The survey finished on 14th July and next morning "Solea" arrived at Busum.

Messungen / Measurements