Tagging of bluefin tuna in Skagerrak 2019 (39675)

Project Details

Description

The tuna tagging project took place in Skagerrak in collaboration with several hundred voluntary anglers. The project aims at acquiring knowledge about the bluefin tuna, which has returned to Danish waters to eat mackerel and garfish.

The tagging project provides knowledge about the tuna and its migration including knowledge of how long the tuna stays in Danish waters. The project also seeks to establish where the tagged tunas come from. This is important because the eastern stock of bluefin tuna is larger and in progress, while the western one does not have the same size and positive development.

Tags used are pop-up transmitters. This type of transmitter can provide researchers with information about the behavior of the tuna, where it comes from, where it spawns, how fast it grows and where it moves throughout the year.

This project is coordinated by DTU Aqua and is supported financially by the International Commission for the Conservation of Atlantic Tunas (ICAAT), The National Aquarium Denmark – Den Blå Planet, STARK Danmark and private donations.

Research area: Marine Populations and Ecosystem Dynamics
StatusFinished
Effective start/end date01/06/201931/12/2019