The grey nose dolphin (Sotalia guianensis) is often to be seen in the waters off Madeiro and Curral beaches (which are also known as Dolphin Bay and Guarairas lagoon.) This dolphin, known as Tucuxi in the Amazon, is being monitored at present by a project run by the Federal University of Rio Grande do Norte (Projeto Botos de Pipa). The project aims to study the behaviour and environment of these charismatic sea mammals as well as their distribution over the area.
Some studies have shown that these dolphins are seen only in coastal regions, living in bays, estuaries and lagoons.
Generally they are to be found along the eastern coastlines of Southern and central America; from Nicaragua in the north to the Brazilian state of Santa Catarina in the south.
The dolphins’ natural habitat are the shallow waters of estuaries and coves where they feed on fish such as the tainha,the sauna and sardines as well as squid and crustacea.
As these areas are more protected they are ideal for the dolphins to rest and raise their young.
This dolphin is one of the smaller of its kind measuring between 1.8m and 2.2m. Its young are a third of this length and are cared for by the adults from birth, being taught how to breathe, fish and play.
This species reaches sexual maturity with a length of approximately 1.4m. It is a sociable mammal living in groups of two to six.
Amongst the few studies of the grey nose which have been realized up until now are those concerning the play, aerial behaviour, habitat and use of shared area & interaction with humans involving fishing.