Deutsches Ozeanographisches
Datenzentrum Inventur der Dana-Reise IBTS 1Q 2012 (DOD-Ref-No.20123065)
Inventory of Dana Cruise IBTS 1Q 2012 (DOD-Ref-No.20123065)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Dana IBTS 1Q 2012 26.01.2012 - 11.02.2012 IBTS
 
North Sea  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Wieland, K Kai Technical University of Denmark National Institute of Aquatic Resources Hirtshals Hirtshals   

Ziel der Reise / Objectives of Cruise:

The survey is part of the 1st quarter International Bottom Trawl Survey (IBTS) in the North Sea, which is coordinated by the ICES International Bottom Trawl Survey Working Group and has been conducted with standard fishing gear in the 1st quarter since 1983. The IBTS aims to provide ICES assessment and science groups with consistent and standardised data for examining spatial and temporal changes in (a) the distribution and rela-tive abundance of fish and fish assemblages; and (b) of the biological parameters of commercial fish species for stock assessment purposes. The main objectives in the 1st quarter IBTS are to: - 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 com-mercial 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 determine the distribution of in particular herring and sprat larvae; The area to be covered by Denmark with RV Dana in the 1st quarter 2011 was allocated during the most recent IBTS Working Group meeting. Technical details are described in the current version of the survey manual (ICES 2010: Addendum 1, IBTS Manual-Revision VIII. http://datras.ices.dk/Documents/Manuals/.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
DTUAQU Munk Peter 83 hauls B13
Eggs/larvae
Eggs/larvae no
DTUAQU Wieland, K Kai 39 hauls B19
Demersal fish
Demersal fish no
DTUAQU Nielsen Tommy 39 profiles H10
CTD-Stations
CTD-Stations no
DTUAQU Nielsen Tommy 17 day(s) H71
Surface measurements underway (T, S)
Surface measurements underway (T/S) no
DTUAQU Nielsen Tommy 17 day(s) M06
Routine standard measurements
Routine standard measurements no
23.3.2024