23.10.2025 – Tursiops

The Bottlenose dolphin (Tursiops) is by far the marine mammal we know the most about. The adaptive nature of these charismatic dolphins has granted them a vast distribution around our world’s oceans. Currently 3 species are recognised: The Indo-pacific bottlenose dolphin (Tursiops aduncus), the Tamanend’s bottlenose dolphin (Tursiops erebennus) and the Common bottlenose dolphin (Tursiops truncatus), the species we encounter in the waters of our region.

All species have both coastal and oceanic ecotypes, individuals that show a preference for certain habitats that is often accompanied by morphological differences. Here in Madeira, our coastal ecotype population is a so -called fission-fusion society which sees constant change and frequent recruiting of oceanic ecotypes. This ensures genetic variation, a fundamental building block for a healthy society.

Our coastal ecotypes could be admired on all tours today but todays sightings also included a dolphin displaying  a sober reality of human/dolphin interactions. A larger oceanic ecotype was trailing at the rear of the pod, with a large wound on its fluke, likely the result of either fishing gear or a boat engine. The skins rapid regeneration power will allow the animal to recuperate but, sadly, these injuries are becoming more common, particularly with interactive species such as the Bottlenose.

To preserve both their diversity and the integrity of our marine ecosystems, we have to make it a priority to protect these animals. After all, we know so much about them and this knowledge should serve the animals, not us.

By Paula Thake

Sightings of the day

Ribeira Brava

09:00 Bottlenose dolphins

13:00 No sightings

Stenella

09:30 Bottlenose dolphins

13:30 Bottlenose dolphins

16:30 Bottlenose dolphins