Deutsches Ozeanographisches
Datenzentrum
Inventur der Dana-Reise 07/15 Danish IBTS 3Q (DOD-Ref-No.20153555)
Inventory of Dana Cruise 07/15 Danish IBTS 3Q (DOD-Ref-No.20153555)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Dana | 07/15 Danish IBTS 3Q | 28.07.2015 - 14.08.2015 | 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 | Wieland, K Kai | 61 | hauls | B19 Demersal fish |
. | no |
DTUAQU | Tjelum Hans Erik | 58 | profiles | H10 CTD-Stations |
. | no |
DTUAQU | Tjelum Hans Erik | 17 | day(s) | H71 Surface measurements underway (T, S) |
. | no |