In this edition of *Twitter Café*, broadcast from Radio Portales in Valparaíso, the program featured a conversation with Jurleys Vellojin, a senior researcher in the Environment Department of the Aquaculture Research Division at the Institute of Fisheries Development (IFOP).
During the discussion, the expert—who holds a doctorate in Aquaculture Science—addressed one of the most silent yet concerning global phenomena linked to climate change: ocean acidification. She explained that the ocean’s massive absorption of CO₂ alters water chemistry and gradually lowers pH levels. This process directly affects marine organisms that build their shells and structures using calcium carbonate—such as mollusks and crustaceans—particularly during their larval and growth stages.

Vellojin also detailed how this phenomenon impacts the salmon industry and aquaculture production in the country’s southern region, emphasizing the importance of having cutting-edge technological tools for decision-making. Among these, she highlighted SOTRacs (Technological Observation System for salmon farming concession clusters), a platform developed in collaboration with the industry. This system integrates and stores key real-time data—such as temperature, salinity, oxygen, and pH levels—collected from monitoring stations distributed across various concessions in the southern territory.