Deutsches Ozeanographisches
Datenzentrum
Inventur der Dana-Reise IBTS 3Q 2012 (DOD-Ref-No.20123308)
Inventory of Dana Cruise IBTS 3Q 2012 (DOD-Ref-No.20123308)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Dana | IBTS 3Q 2012 | 23.07.2012 - 08.08.2012 |
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 3rd 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 3rd quarter since 1991. The IBTS aims to provide ICES assessment and science groups with consistent and standardized data for examining spatial and temporal changes in (a) the distribution and relative 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 3rd 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; The area to be covered by Denmark with RV Dana in the 3rd quarter 2012 was allocated during the most recent IBTS Working Group meeting. Technical details are described in the current version of the survey manual (ICES 2012: IBTS Manual -Revision VIII (http://www.ices.dk/products/surveyprotocols.asp).
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
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