Updated Reports
November 10, 2025
During September 2025, we deployed satellite transmitters on 30 Southern Right Whales in Golfo Nuevo (Chubut, Argentina). We are currently monitoring 16 whales with active long-duration transmitters, while 14 devices, mostly short-duration, have stopped transmissions.
- Of the whales with active transmitters, nine remain in Golfo Nuevo:
Indium, Silicon, Aluminium, Carbon, Lithium, Mercury, Nobelium, Einsteinium, and Oxygen. - The other seven whales have begun their migration to feeding areas:
Iron, Argon, Bismuth, Radon, Sodium, Argentum, and Iridium.
- Of the whales with active transmitters, nine remain in Golfo Nuevo:
Tracked Whales 2025/2026
During the tenth season of the “Tracking Whales” Project, we are following the movements of 30 Southern Right Whales equipped with last generation satellite transmitters in Golfo Nuevo, Península Valdés. Each device has its own unique code and, as in the previous season, the whale carrying a device was assigned the name of an element from the periodic table.
The goal is to collect information on their movements at their breeding grounds and during their migration to feeding areas in the southern seas.
Important information about satellite tracking
Animal welfare: New generation satellite tags used by the project may have minimal and short-term effects on the behavior and health of the animals. This research strives to use the safest technology to track whales.
Positions recorded: Positions have a margin of error of 200 to 2000 meters (which is the reason some tracks that are close to shore seem to be on dry land).
Duration: The devices stop sending data when they become detached, which can occur weeks or months after their deployment, or when their batteries run out, depending on various factors, but mainly on the type of tag used.
