[Article initialement publié le 1 septembre 2024]
Most of these marine mammals prefer hot waters, but they can still appreciate colder, even frozen climates. This is the case of the Dauphin Sablier (Lagenorhynchus Cruciger) which lives in the southern ocean and in the subantarctic areas.
A dolphin who loves cold waters
Savings dolphins are difficult to observe, but they are not really rare. Experts actually estimate that more than 144,000 dolphins sand lives in the planet's cold waters.
However, they do not live in areas regularly frequented by humans. Especially since the best place to increase the chances of seeing them is none other than the Antarctic convergence.
It is the area where antarctic cold waters meet the warmer waters of the subantarctic regions. This creates powerful currents which are therefore not conducive to visits.
The dolphins sandblashes quickly swim in the wake of the boats
Those who have had the chance to meet dolphins sandblans have often seen them in the wake of boats. They take the opportunity to propel themselves easier and less tire. These are fast swimmers who can reach 22 kilometers per hour. They also like to jump out of the water.
https://www.youtube.com/watch?v=aetnalf_lyi
The Dolphin Sablier is distinguished from other species by its small size and the color of its body. Its basic color is black with white spots on the sides that look like sandblasters.
He is small, but stocky. Indeed, the Dauphin Sablier measures a maximum of 1.9 meters long, but it can weigh up to 120 kilograms. As for its dorsal fin, it is large and curved.
It is a sociable cetacean that often travels in a small group. These groups have an average of 7 individuals, but larger groups up to 100 dolphins have already been observed.
This cetacean has rarely been studied by researchers
Since the Dauphin Sablier was recognized as a species in 1824 by French naturalists Jean René Constant quoy and Joseph Paul Gaimard, few studies were carried out about him.
Recently, researchers were able to make the autopsy of a stranded specimen on a southern island beach in New Zealand. “We have the privilege, a rare privilege, to have an overview of the biology and the life cycle of a species which is rarely studied on a global scale,” says Karen Stockin, an environmentalist specialist in marine mammals.
Source: Iflscience
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