MAGAZINE DIGITALE - La Voce del Cambiamento

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How crowded the Mar del Plata canyon is!

Immagine in evidenza tratta dal web

The Mar del Plata submarine canyon is located in the southwestern Atlantic Ocean, off the coast of Argentina, about 400 kilometers south of the capital, Buenos Aires. Its deepest point exceeds 3,500 meters. On August 1, 2025, a live broadcast on YouTube was launched: the video was transmitted from the canyon’s seabed via a remotely controlled underwater robot named “ROV SuBastian,” equipped with high-definition cameras and capable of collecting biological samples with precision. The expedition lasted 21 days and aimed to explore the seabed and directly observe its rich biodiversity, which is, for the most part, yet to be discovered. The expedition discovered over 40 possible new, bizarre, and alien-looking marine species. Sadly, it also revealed traces of human activity, such as debris and plastic, all directly observed for the first time thanks to the live-broadcast images. Marine species were sighted, some already known to science, but others thought to be unknown, including: sea anemones, starfish, snails, “glass” corals, squids, cephalopods, siphonophores, ctenophores, nudibranchs, deep-sea fish, crabs, molluscs, spirographs, jellyfish, coelenterates, echinoderms, lobsters, Patagonian pink lobsters, crinoids, and many other invertebrate organisms. Currently, videos uploaded to various media channels have amassed over a million views, achieving great success and appeal, especially among the Argentine public. They have also become a tool for protest against Argentine President Javier Milei’s cuts to funds allocated for public scientific research. In particular, a starfish has become a viral meme. Given its rounded curves, it has been named “estrella culona” by livestream users and compared to the famous marine character Patrick Star from the animated cartoon show “SpongeBob.” The footage and the robot are owned by the “Schmidt Ocean Institute,” a non-profit foundation that advances innovative oceanographic research through technological innovation, dissemination, and open-source information. Previous expeditions were organized in 2012 and 2013 for seabed exploration, but last August’s expedition had greater relevance and interest from scientists as the canyon’s first high-tech expedition, using more advanced and effective techniques than previous ones. What has opened up is, in fact, a possible glimmer of hope for new research on marine fauna and biodiversity and the protection and conservation of ecosystems, which are dramatically at risk because of climate change.

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