In a quiet laboratory at Phuket Rajabhat University in southern Thailand, Preeyanuch Thongpoo is attempting to freeze time. As a molecular biologist, her work focuses on the cryopreservation of live larvae and algae to facilitate future restoration. Inside, suspended in liquid nitrogen at -196° Celsius (-321° Fahrenheit), are vials containing microscopic algae no bigger than specks of dust. Her team is deep-freezing the vital symbiotic algae of the cauliflower coral (genus Pocillopora), from the family Symbiodiniaceae. These live inside coral tissues and provide most of the energy corals need to survive. The larvae of the cauliflower coral itself, a rugged pioneer known for recolonizing heat-damaged reefs, have been preserved in separate vials. Working as part of the Coral Research & Development Accelerator Platform (CORDAP) initiative, Preeyanuch is building more than a repository; she is creating a “living seed bank” aimed at supporting future reef restoration. Preeyanuch Thongpoo works to preserve coral specimens in hopes it will buy “crucial time” to prevent extinctions. Image courtesy of Preeyanuch Thongpoo. This effort comes at a precarious moment for Thailand’s marine heritage. Coral reefs in Thailand are under pressure from both global climate change and local stressors, including tourism and coastal development. Recent coast-to-coast surveys show that Thailand’s coral reefs, home to more than 300 species of reef-building corals, are losing structural complexity and shifting in species composition after repeated mass bleaching events driven by extreme marine heat waves between 2022 and early 2024, with heat stress in 2024-2025 likely compounding the declines. Tourism,…This article was originally published on Mongabay
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