They occur most often on the edges of rivers with lower densities concentrated at the center of large rivers. They also possess a flexible neck which permits them to move their head from left to right.īotos thrive throughout the Amazon and Orinoco River basins, feeding on over 43 fish species. Also known as bufeo colorado, they are known for having pale pink color with a rounded head, long snout, and a small dorsal fin. READ ALSO: Dolphin Intelligence: How Smart Are These Creatures?īotos (Inia geoffrensis) are a species of mammals considered the largest of the river dolphins. The neural network can effectively distinguish between the two species since each has distinct whistles. The boto and tucuxi species use echolocation clicks to sense their environment, while they make whistling sounds when communicating with other dolphins. The AI was trained to distinguish between three types of sound: dolphin, boat engines, and rainfall. The technology allows the experts to analyze information that would otherwise be impossible to access. This neural network was trained to recognize the unique sounds of clicks and whistles produced by the dolphins. To distinguish the sounds of the dolphin from the soundscape of the Amazon, the researchers used AI, where the recordings are fed into a deep-learning neural network. They installed underwater microphones at various sites to eavesdrop on the situation of the animals. According to bioacoustician Michel André from the Technical University of Catalonia in Barcelona, Spain, the sound is much less invasive than traditional ones.Īndré and his colleagues studied the activity of two dolphin species, the boto - also known as the pink river dolphin - and the tucuxi, which are found in the floodplains of the Mamirauá reserve in the northern region of Brazil. The studyis also part of the teamwork between the Technical University of Catalonia and the Mamirauá Institute of Sustainable Development in Tefé, Brazil.Ĭonventional tracking techniques in similar studies include aerial drones, boats, or GPS tags. To aid the conservationist strategies of authorities, a group of researchers used artificial intelligence to track the movements of the dolphins across the rainforest, which gets submerged in the water every year after the rainy season. Mapping the Movements of Endangered Dolphins
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