16.04.2025 – The friendlies

One of the pleasures that comes with diversity of species is a range of different behaviours! People tend to associate specific behaviours with dolphins (or even cetaceans in general) but the truth is that dolphins can show a variety of different behaviours and, while some general behaviours can be associated with some species, these can also vary depending on the region.

Atlantic spotted dolphins (Stenella frontalis) are generally considered to be an interactive species, approaching boats fearlessly to glide through the waves at the bow. Spotted dolphins often travel in large pods that are made up of several sub-groups, 20-30 animals strong, that consist of like-minded individuals that prefer each others company. This morning both our boats enjoyed sightings with a very curious group of these dolphins, that were likely hunting juvenile Flying fish (Cheilopogon melanurus) before we arrived.

In contrast to the spotted dolphins, Bottlenose dolphins (Tursiops truncatus) in Madeira usually turn up in groups of 6-12 individuals and prefer coastal waters. These close relatives of the spotted dolphins often show curious behaviour but tend to keep their distance during a sighting. Their preference for coastal waters puts them in much more contact with boat traffic which could contribute to this kind of behaviour.

Blainville’s beaked whales (Mesoplodon densirostris) are part of the elusive beaked whale family that are known for being evasive. The Blainville’s, however, can show curious behaviour and this often depends on the character of the group. Todays beaked whales allowed a close encounter for our team, giving this lovely day a very refreshing finale.

By Paula Thake

Sightings of the day

Ribeira Brava

09:30 Atlantic spotted dolphins

13:30 Bottlenose dolphins

Stenella

09:30 Atlantic spotted dolphins, Bottlenose dolphins

13:30 Bottlenose dolphins

16:00 Blainville’s beaked whales