Researchers have documented an exceptionally large pod of endangered common dolphins, including numerous calves, in the protected waters off northern Sardinia. The sighting occurred in the Gulf of Asinara, specifically within the “Castelsardo Canyon” area, part of the Pelagos Sanctuary for Mediterranean Marine Mammals.
During a monitoring expedition led by Sea Me Sardinia, scientists observed approximately 70 common dolphins (Delphinus delphis), many accompanied by young. This sighting is significant as the common dolphin, despite its name, is endangered in the Mediterranean. Its populations have declined sharply due to habitat degradation, prey depletion from overfishing, and accidental deaths in fishing gear. Encountering such a large group with multiple calves is particularly rare.
Researchers collected valuable photo, video, acoustic, and behavioral data during the encounter. This information will aid in analyzing the species’ presence, distribution, and habitat use within the area, enhancing conservation knowledge.
The same expedition also recorded four sightings of striped dolphins (Stenella coeruleoalba), a pelagic species common in the Mediterranean, including mother-calf pairs. Biologists further documented other protected megafauna species, such as loggerhead sea turtles (Caretta caretta) and mobula rays (Mobula mobular), indicating high biodiversity in the region.
These research missions form part of the “Cetaceans of the Castelsardo Canyon” project. It is promoted by the Municipalities of Castelsardo and Sorso with technical-scientific support from Sea Me Sardinia.
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