Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Dana (26D4) |
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Cruise identifier | 07/2019 IBTS |
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Cruise period | 2019-07-30 — 2019-08-15 |
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Status | Completed |
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Port of departure | Hirtshals Havn, Denmark |
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Port of return | Hirtshals Havn, Denmark |
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Purpose | Research |
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Objectives | Objectives
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 standardised 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 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
NB Unrelated Dana cruise in May 2019 also named 07/2019 |
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Chief scientist | Helle Rasmussen (Technical University of Denmark, National Institute of Aquatic Resources), Kai Wieland (Technical University of Denmark, National Institute of Aquatic Resources) |
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Project | ICES International Bottom Trawl Survey (IBTS) |
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Coordinating body | International Council for the Exploration of the Sea (ICES) |
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Cruise report | (0.55 MB) |
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NPRC | (1.13 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | 51 000'N - 58°00'N, 02°00'W - 10°00'E |