Drones Applied to Cetacean Research: A Case Study of Fin Whales.

The fin whale is the only whale species regularly found in the Mediterranean Sea, with a year around presence. However, the aquatic environment and the whale’s diving behavior have posed challenges to studying this marine mammal. The increasing use of drones in cetacean research has significantly enhanced our understanding of the species. Drones provide the ability to quickly and discreetly fly over the whales, minimizing the disturbance, while capturing high-quality footage that enables the observation of their behavior and characteristic features used for identification, as well as supporting morphometric analysis. Additionally, drones can assist in collecting blow samples and guiding research vessels for closer, more effective approaches to conduct biopsies, collect fecal samples, or deploy tagging devices. This technological advancement has greatly contributed to a deeper understanding of fin whales, offering valuable insights into the health of the population.

 

Keywords: drones, cetacean, fin whale, identification, behavior, health, morphometrics, sampling, population.

Video 1. Foraging behaviour

The video shows the lateral movements and circles that the fin whale is doing when looking for food close to the surface.

Video 2. Feeding behaviour

The video shows the surface feeding behaviour of a fin whale. In this case, the fin whale has few striped dolphins interacting in front of her while feeding.

Video 3. Travelling behaviour.

The video shows fin whales travelling on their annual migration.

Video 4. Resting behaviour

The video shows some fin whales swimming really close to the surface, on a resting behaviour. It is possible how relax and slow they are while moving and coming to the surface to breath.

Video 5. Social behaviour

The video shows a fin whale mother with her calf swimming and interacting close to the surface.

Video 6. Risk of collision

The video shows a fin whale resting close to the surface while one big cargo is approaching straight towards her.

Video 7. Marine traffic collision

The video shows an animal which suffered a ship strike and as a consequence of that it has an scoliosis in the end of the vertebral column.

Video 8. Blow sample

The video shows the methodology used to obtain blow samples with a drone in fin whales.