On a quiet morning in June 2025, fishermen at Tanjung Luar port in East Lombok, Indonesia, hauled in a catch that has become increasingly rare: sharks. Among them were species listed as endangered or vulnerable by the International Union for Conservation of Nature, their fins destined for markets in Hong Kong and China, their bones ground into powder for cosmetic products. The image, captured by photojournalist Nicole Tung, offers a stark glimpse into a crisis unfolding beneath the waves of Southeast Asia — one where overfishing is not just depleting marine life but threatening the livelihoods and food security of millions.
Southeast Asia produces more than half of the world’s fish, according to the Food and Agriculture Organization of the United Nations, yet its coastal waters are among the most overexploited on the planet. The region’s fisheries support over 20 million people directly, with tens of millions more relying on fish as a primary source of protein. But decades of unregulated fishing, destructive practices like blast fishing and cyanide use, and rising global demand have pushed many fish stocks to the brink. Scientists warn that without urgent intervention, entire marine ecosystems could collapse, with cascading effects on coastal communities.
The problem extends far beyond sharks. In the Gulf of Thailand, fish biomass has declined by more than 80% since the 1960s, a study published in Nature found. In Indonesia, the world’s second-largest producer of wild-caught fish, over 70% of fish stocks are either fully exploited or overexploited, according to the country’s Ministry of Marine Affairs and Fisheries. Similar trends are reported in the Philippines, Vietnam, and Malaysia, where illegal, unreported, and unregulated (IUU) fishing accounts for an estimated 20–30% of total catch.
These figures are not abstract. For small-scale fishers in villages across the archipelago, declining catches imply lower incomes, increased debt, and hard choices about whether to send children to school or put them to work on boats. Women, who often process and sell the catch, face disproportionate impacts as fish become scarcer and prices more volatile. In some communities, traditional fishing grounds have been encroached upon by industrial trawlers operating under flags of convenience, further squeezing local access to resources.
The environmental toll is equally severe. Coral reefs, which support an estimated 25% of marine species, are suffering from overfishing that removes key herbivorous fish, allowing algae to overgrow and smother reef structures. In the Coral Triangle — the global epicenter of marine biodiversity spanning Indonesia, Malaysia, the Philippines, Papua New Guinea, Timor-Leste, and the Solomon Islands — overfishing compounds threats from climate change and pollution, pushing ecosystems toward tipping points.
Efforts to address the crisis are underway, but progress remains uneven. Indonesia has implemented a moratorium on destructive fishing gear in certain zones and expanded marine protected areas, now covering over 23 million hectares. The Philippines has strengthened its IUU fishing laws, increasing penalties and improving vessel monitoring systems. Vietnam has committed to reducing fishing effort in over-exploited zones under its national fisheries development plan. Yet enforcement remains a challenge due to limited resources, corruption, and the vastness of maritime territories.
Regional cooperation is as well growing. The Coral Triangle Initiative on Coral Reefs, Fisheries, and Food Security, formed in 2009, brings together the six nations to promote sustainable fisheries management and climate resilience. In 2023, the Association of Southeast Asian Nations (ASEAN) endorsed a plan to combat IUU fishing through information sharing and joint patrols. However, critics argue that these mechanisms lack binding authority and sufficient funding to drive meaningful change on the water.
Consumer demand, particularly for shark fin and luxury seafood, continues to drive exploitation. Despite bans on shark finning in several countries and declining popularity in some urban centers due to awareness campaigns, the trade persists, often operating through complex supply chains that obscure origins. Environmental groups like WWF and TRAFFIC have called for stronger traceability requirements and consumer education to reduce demand for unsustainably sourced products.
Experts emphasize that solutions must balance ecological sustainability with human needs. Community-based fisheries management, which empowers local communities to set rules and monitor compliance, has shown promise in places like Bali and Palawan. Alternative livelihood programs, such as seaweed farming or ecotourism, are being tested to reduce pressure on fish stocks. Meanwhile, innovations in satellite monitoring and artificial intelligence are helping authorities detect illegal fishing activity in near real-time.
The next major step in regional fisheries governance is expected later in 2025, when ASEAN ministers are scheduled to review progress on the IUU fishing action plan during a summit in Laos. Officials say the meeting will focus on strengthening data sharing and capacity building for coastal states. No binding agreements are expected, but advocates hope it will renew political will to address a crisis that is as much about people as It’s about fish.
For readers seeking to understand the complexities of overfishing in Southeast Asia, verified updates can be found through the Food and Agriculture Organization’s fisheries division, the Southeast Asian Fisheries Development Center, and peer-reviewed journals like Marine Policy and Fish and Fisheries. Transparency and informed dialogue remain essential as the region navigates the difficult path toward sustainable seas.
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