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Joint survey report for CRIMAC SFI and IMR sampling gear project

— GO Sars 1. - 21.11.2021

Editor(s): and Maria Tenningen (IMR)
Cruise leader(s): (IMR)

Report series: Toktrapport 2022-3 ISSN: 1503-6294 Published: 29.03.2022
Cruise no.: 2021111 Project No.: 15662 15566 On request by: NFR, FKD
Research group(s): Økosystemakustikk, Fangst Program: Barentshavet og Polhavet, Marine prosesser og menneskelig påvirkning
Research group leader(s): Rolf Korneliussen (Økosystemakustikk) og Svein Løkkeborg (Fangst)
Approved by: Research Director(s): Geir Huse Program leader(s): Frode Vikebø

Norsk sammendrag

Summary

In this report we present main activities and preliminary results from the joint survey for the CRIMAC sfi and IMR sampling gear project. The survey was conducted on board RV G.O. Sars between 1. and 21. November and the survey area covered the coasts of Troms and Finmark and the area south and south-west of Bjørnøya. The overall aims were to test IMRs sampling trawls (sampling gear project), obtain optical and broadbanded acoustical measurements of demersal fish (CRIMAC) and test and develop new optic and acoustic instruments and methods (CRIMAC). Most of the sampling stations were based on a fixed protocol consisting of an acoustic transect, a TS probe deployment, trawling (with the Deep Vision camera system) and CTD. In addition to these stations several other tasks, such as developing the commercial DV, ADCP testing, and data collection for FM conversion to CW, were conducted sequentially.