Duration of the cruise:  25 March to 16 April 2025

Cruise area:  North Sea (German Bight, possibly Skagerrak)

Purpose of the cruise:  Test and training trip fishing and survey technology

The main tasks of the voyage are training on and testing new or revised technical equipment for fishing and survey technology. During regular research cruises, there is not enough time to test, check and improve new and modified technical equipment on the research vessels. For complex equipment such as underwater vehicles, there is also still a need for regular training for the operating personnel in order to enable safe and effective use during regular research cruises.

The focus of this trip is on testing and operational training for the extensively revised underwater vehicle ROTV Triaxus and the measurement technology installed on it. The aim is to determine the practicable maximum vertical deflection and the optimum towing speed for this deployment. In addition, an operation over long distances (overnight operation) is to be tested as an example.

Furthermore, underwater recordings of the Icaacs-Kidd Midwater Trawl net with a revised multi-net are to be recorded in order to validate the settings of the lines and the correct position in the underwater area.

Cruise report (PDF, english)