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EARTH-2026-0039
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A fish kill that began on a Thursday in late August 2026 hit about 34 fish cages covering 6.4 hectares of Laguna de Bay off Jala-jala, Rizal, killing tilapia, bighead carp, kanduli, bangus and fingerlings. The fisherfolk group Pamalakaya put the loss at more than 20,000 kilograms of tilapia and bighead carp worth an estimated P700,000, and operators said the lake water had turned rusty in colour before the fish died. The LLDA said Laguna de Bay was under a widespread algal bloom that heavy rain could worsen and that the incident needed thorough evaluation, while BFAR collected water and fish samples; authorities warned the public not to buy or eat the floating fish.
This case is documented in public reporting. Every fact on this page comes from the sources below, which are kept against the case so the record can be checked.
Abante · Aug 29, 2026
Abante Tonite · Sep 1, 2026
ICSF, Inquirer repost · Sep 1, 2026
Every change of state, timestamped, oldest first. Entries are added, never edited or removed, so the record of how long something took cannot be quietly improved later.
LLDA warned that changes in weather and water conditions could trigger or intensify algal growth whose decomposition reduces oxygen and can kill fish.
Recorded by Laguna Lake Development Authority
Fish began dying in cages off Jala-jala, with operators noting the lake water had turned rusty before the fish died.
Recorded by Fish cage operators
BFAR was examining water and fish samples from the affected area while the LLDA said the incident required thorough evaluation because of the widespread algal bloom.
Recorded by BFAR
Pamalakaya reported more than 20,000 kg of tilapia and bighead carp lost across more than 30 cages, with initial losses estimated at P700,000, and suspected chemical waste.
Recorded by Pamalakaya
The measured result
Taken on a return visit after the work was done, not estimated on the day.