Dead Coral Formations Near BRP Sierra Madre, Authorities Link Damage to Alleged Cyanide Fishing

Documented dead coral formations in the waters surrounding the BRP Sierra Madre at Ayungin Shoal, Philippine authorities reported that the reef damage is allegedly linked to cyanide fishing activities by Chinese fishing vessels after laboratory tests detected cyanide in bottles recovered from Chinese sampans in the area.

According to Philippine Navy spokesperson Roy Vincent Trinidad, laboratory examinations confirmed the presence of cyanide in the recovered bottles. Authorities said the findings, along with the condition of the damaged coral reefs, raised concerns over the use of destructive fishing methods, although diplomatic disputes regarding the allegations remain ongoing.

Cyanide fishing is an illegal practice in which sodium cyanide is released into coral reefs to stun fish for easier capture. While effective for catching live fish, the chemical can kill coral polyps, poison other marine organisms, and severely damage reef ecosystems that may take decades to recover.

Officials also warned that the degradation of coral reefs could affect personnel stationed aboard the BRP Sierra Madre by reducing marine resources that support food availability in the area. They also reported the presence of large fishing nets near the entrance to the shoal, which may damage reefs and obstruct rotation and resupply missions.

Marine scientists continue to emphasize the importance of protecting coral reefs because they support marine biodiversity, sustain fisheries, and help protect coastlines. Authorities said continued monitoring and stronger enforcement of marine protection laws remain essential as investigations into the reported reef damage continue.