Overview

• Fisher groups reported thousands of fish across species—including robalo, pijolín, lisa, carpa, tilapia, chacal, charal, cuatete, mojarra and bagre—dying over roughly 72 hours, with foul odors and carcasses along the shore.
• Preliminary field readings recorded lagoon temperatures near 34°C, above the 28–30°C tolerance for native species, consistent with heat-driven hypoxia and with the worst mortality around Plan de los Amates.
• Municipal and state ecology teams, COASEG and the Comité de Sanidad Acuícola inspected San Pedro Las Playas and Plan de los Amates, collected water and specimen samples and measured temperature, dissolved oxygen, pH and depth.
• The Acapulco environmental director said contamination was discarded for now, while fishers allege sewage discharges from non-operational treatment plants and possible effects from Río La Sabana dredging and demand investigation.
• Estimates of the socioeconomic toll range from at least 1,500 families directly affected to as many as 7,500 families across 90 cooperatives, with locals saying more than 10,000 carp were lost.