Climate

Scientists confirm horseshoe crabs in a second Philippine province, urge conservation

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Briefings

Scientists confirmed horseshoe crab presence in Tawi-Tawi province, Philippines, for the first time, identifying two species including the endangered tri-spine type. Researchers interviewed 142 residents across four municipalities to establish baseline data for conservation. The study was conducted by Mindanao State University researchers in December 2023, with findings published in November 2026.

Key points

• Scientists identified two horseshoe crab species in Tawi-Tawi province, Philippines, including the endangered tri-spine horseshoe crab (Tachypleus tridentatus).
• Researchers interviewed 142 residents across four municipalities to gather baseline data on population changes and collection practices.

Context

This discovery expands horseshoe crab distribution from Palawan province to Tawi-Tawi, with researchers aiming to support future conservation initiatives based on local knowledge.

Limitations

Evidence relies on interviews with 142 residents; specific population numbers are unknown. Conservation status for one species is data deficient, and the study predates the current publication date.

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