RV Dana 08/2020

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Dana (26D4)
Cruise identifier08/2020
Cruise period2020-07-28 — 2020-08-14
Port of departureHirtshals Havn, Denmark
Port of returnHirtshals Havn, Denmark
ObjectivesICES International Bottom Trawl Survey, 2020 Q3.


- To determine the distribution and relative abundance of pre-recruits of the main commercial species (cod, haddock, whiting, Norway pout, saithe, herring, sprat, and mackerel) with a view of deriving recruitment indices
- To monitor changes in the stocks of commercial fish species independently of commercial fisheries data
- To monitor the distribution and relative abundance of all fish species and selected invertebrates
- To collect data for the determination of biological parameters for selected species
- To collect hydrographical and environmental information
- To collect information of the amount and distribution of marine litter


R/V Dana left Hirtshals on Tuesday 28th July at 11:05 local time. The field work started in the western Skagerrak. The vessel stayed in the port of Esbjerg on Wednesday 5th August from 9:30 to 12:15 for a scheduled exchange of scientific staff and crew. R/V Dana returned to Hirtshals on Friday 14th August at 8:45 local time.

Rough weather conditions delayed the sampling progress in the northeastern part of the survey area during the beginning of the survey whereas favorable weather conditions prevailed thereafter and in particular during the 2nd cruise leg.
Chief scientistHelle Rasmussen (Technical University of Denmark, National Institute of Aquatic Resources), Kai Wieland (Technical University of Denmark, National Institute of Aquatic Resources)
ProjectICES International Bottom Trawl Survey (IBTS)
Coordinating bodyInternational Council for the Exploration of the Sea (ICES)
Cruise reportRV Dana 08/2020 cruise report dana_08_2020.pdf (1.06 MB) 
NPRCRV Dana 08/2020 NPRC dana_08_2020.pdf (0.32 MB) 
Ocean/sea areas 
GeneralNorth Sea
Specific51 000'N - 58°00'N, 02°00'W - 10°00'E