Multiyear electronic tagging of Atlantic Bluefin Tuna in Scandinavian waters (SBM) (39769)

Project Details

Description

After more than five decades Atlantic bluefin tuna (ABFT) are back in Danish waters. ABFT are the biggest predatory fish to visit our waters. The over all purpose of the project is to learn more about the large ABFT visiting our waters and understand the factors behind their visit. 

Specific purposes include:
- Identify migration patterns, including potential return migration.
- Study detailed swimming and diving behaviour.
- Population origin and physiological condition of tagged ABFT.
- Monitor movements over several years (including spawning migrations).
- Estimate numbers visiting Danish waters.

The project uses experienced Big game anglers to catch ABFT, which is subsequently sampled, tagged and released from a dedicated tagging boat. The project uses a suite of tag technologies, genetic and physiological methods to investigate different aspects of their life cycle in order to understand both individual behaviour and population behaviour. 

Partners
DTU Aqua, National Institute of Aquatic Resources (coordinator)
Centre for Environment, Fisheries and Aquaculture Science, UK
Swedish University of Agricultural Sciences, Sweden
The International Commission for the Conservation of Atlantic Tunas

Funding
The project is funded by the Danish Ministry of Food, Agriculture and Fisheries, the EU project MarGen II, Tunforeningen af 2019, Stark A/S and DTU Aqua. 

Research area: Freshwater Fisheries and Ecology
Research area: Marine Populations and Ecosystem Dynamics
StatusActive
Effective start/end date01/01/202031/12/2030

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