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Dorte Krause Jensen - Photo from Pure

23 researchers from Aarhus University chosen for new AIAS fellowship – among them is one of our own professors

2021.04.09 | Department of Bioscience

In relation to a new AIAS fellowship called ”The AIAS Associate programme” 23 researchers from Aarhus University will be welcomed from April 1. One of them is Professor Dorte Krause Jensen from Marine Ecology.

Porpoise mother with her calf. Photo: Jeppe Balle Dalgaard.
The study site with the oil and gas platform Dan-F in the Danish sector of the central North Sea. To the right a small service vessel and a yellow buoy with autonomous acoustic recorders placed at the seabed, listening for harbour porpoises for two years. Photo: Jeppe Balle Dalgaard.

Harbour porpoises attracted to oil platforms when searching for food

2021.03.17 | Department of Bioscience

A large gathering of fish tempts harbour porpoises to search for food around oil and gas platforms, even though the noise from these industrial plants normally to scare the whales away. Decommissioned platforms may therefore serve as artificial reefs in the North Sea.

Narwhals with their characteristic spiralled tusks in dense pack ice. Photo: ©Paul Nicklen / paulnicklen.com
Cut-through narwhal tusk displaying the individual year rings. Analyses of the individual layers of narwhal tusks have provided information about their food choice and their exposure to mercury throughout their life. Photo: Rune Dietz.

The narwhal’s tusk reveals its past living conditions

2021.03.10 | Department of Bioscience

Every year, a new growth layer is added to the narwhal’s spiralled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental conditions have changed over its long life span (up to 50 years).

Events

Tue 20 Apr
14:00-16:00 | Online
Arctic marine mammals in a post-Arctic world
AROS Biology Lecture
Mon 26 Apr
16:00-17:00 | Online
Reinventing conservation for a post-normal world
Biochange seminar series