Aarhus University Seal / Aarhus Universitets segl


and new technology

Our highly educated and experienced team of technicians and commercial divers have many years of field experience and always seek to use the best solutions and cutting-edge technology. In all of our efforts, we aim to employ the most prominent and state-of-the-art research available. Using innovative thinking and experience, our technicians develop and tailor new equipment that fits our needs when collecting data, handling live animals, and in matters concerning safety and efficiency. We have gathered knowledge and experience through collaborative projects from all over the world, leading us to have unique qualifications and necessary certifications for conducting various types of assignments, such as passive acoustic monitoring assignments, surveillance from planes and drones, together with tagging, capturing live mammals, etc.

Planes and drones

Small planes

These small planes are used during surveillance programs like NOVANA and when searching for lost tags. Photo data from seal resting areas can be used to monitor the population. Read more about our surveillance projects.

Photo by Jeppe Dalgaard Balle
Plane survey of seals
Photo by Anders Galatius


Using drones gives us the opportunity to get a better view during the capture and tagging of a marine mammal. The drones are one of the newest additions to our range of facilities, and we are still investigating new ways to incorporate it into our work.

Research drone
Photo by Jeppe Dalgaard Balle
Photo by Jeppe Dalgaard Balle

Commercial diving

Our team of commercial divers have great experience with large operations, expeditions and international projects. This e.g. includes tasks like installing equipment on the seabed and different types of sampling.

Novana sample collection
Collecting samples during NOVANA, photo by AU
Commercial diver in the water
Photo by AU

Capturing and handling marine mammals

Our knowledge about marine mammal movement ecology and population monitoring comes from many years of experience with capturing, handling and tagging live marine mammals. Our aim is to reduce the handling time and make it as efficient and gentle as possible. We have developed special methods for capturing both seals and porpoises. These methods have been used for many years in Denmark and in collaboration with large international project all over the world. We are able to tag marine mammals from boat using a pole, crossbow, gun or manually. 

Tagging a Harbour seal
Tagging of a Harbour seal, Photo by Au

Acoustic monitoring

Our team participates in both national and international projects like SAMBAH, where we use hydrophones, acoustic data loggers like T-PODs, C-PODs, Wildlife Acoustics SM2M+ and SM3M together with sound trapes. The entire setup depends on the surroundings and the environment in the specific area. We have many years of experience in acoustic monitoring of marina mammals and in using setups to investigate the impact of noise on marine mammal behavior and travel patterns. A small setup could be composed of small acoustic releasers and sand bags, in large setups we sometimes use anchor systems weighing 500-700 kg.

Acoustic monitoring
Photo by Jeppe Dalgaard Balle
Photo by Au

Tags and development

Our technicians are developing and tailoring new methods and technology and aim to find the most suitable end efficient equipment to match the inquiries. We aim to have ongoing implementation of cutting-edge technology and are developing new ways of using different kinds of tags, programs and other equipment for field and laboratory work.


The laboratory is used for dissections and in vitro research in the effect of environmental contaminant. We do also have a transportable laboratory for field work.

Working the lab
Photo by Christian Sonne
Seal monitoring / Photo: Casper Tybjerg ©
Seal monitoring / Photo: Casper Tybjerg ©