The first results of the San Jose Island Marine Research Program , presented by the Autonomous University of Baja California Sur (UABCS) , confirm that ocean warming is precipitating rapid changes in the Gulf of California.
The comparison between records of 1999-2005 and campaigns of 2024-2025 reveals local species losses, displacements de peces and invertebrates, deterioration of rocky reefs and alterations in coastal wetlands; the most worrying fact is a drop of up to 40% in diversity de peces, with possible direct effects on regional fishing.
Effects of warming on marine life in the Gulf
The team responsible, led by Dr. José Alejandro Ramos RodrÃguez and composed of Mariana Gámez, Isabelle Nelson y Mariana Núñez, has documented changes on the ground in reefs, communities de peces and invertebratesas well as in coastal wetlands.
As José Alejandro Ramos RodrÃguez explained , the warming of the Gulf was already suspected, but now there is verifiable data showing its impact on the fauna: in some places the local disappearance of species has been confirmed.
The discovery of local extinctions acts as an early sign of ecological imbalance and anticipates cascading impacts on key habitats in the Gulf.
The UABCS warns that this trend could translate into economic consequences for fishing communities, given that almost half of the national fish production depends on the states linked to the Gulf of California.
Support and next steps in the investigation
The project continues thanks to the support of Grupo Indi , a company interested in promoting scientific initiatives aimed at the conservation and responsible management of marine ecosystems.
By 2026 , UABCS plans to expand monitoring with remotely operated vehicles (ROVs) and additional oceanographic studies, with the aim of defining the magnitude of the change and its future evolution.
With more than 45 years of experience, UABCS remains a benchmark in marine research in Mexico, through its Academic Department of Marine and Coastal Sciences.
The picture painted by the data is clear: a decrease of up to 40% in diversity de peces accompanied by displacement and deterioration of habitats that They demand increased monitoring. and management measures to safeguard both the ecosystems of the Gulf of California and the fishing activity that depends on them.
