🌊 The Escalating Tensions in Indian Ocean Fisheries

Fisheries disputes in the Indian Ocean have intensified in recent years, driven by dwindling fish stocks, overlapping maritime claims, and growing competition among nations. This vast body of water, spanning over 70 million square kilometers and bordering more than 30 countries, supports millions of livelihoods through fishing and seafood trade. Yet, illegal, unreported, and unregulated (IUU) fishing, overexploitation of species like yellowfin tuna, and cross-border incursions plague the region. Countries such as India, Sri Lanka, the European Union fleets, China, and even Pakistan are entangled in these conflicts, which carry economic, environmental, and security implications.

At the heart of these disputes lies the struggle for sustainable access to marine resources. Traditional small-scale fishers from coastal communities often clash with industrial vessels from distant nations, exacerbating poverty and food insecurity. Recent data highlights the severity: the Indian Ocean Tuna Commission (IOTC) reports that yellowfin tuna stocks are overfished, with catches exceeding sustainable levels by significant margins. As warming seas alter migration patterns, fishers venture into riskier, disputed waters, heightening confrontations.

These issues gained renewed attention in 2025 and early 2026, with India's fisheries budget allocation of over ₹2,700 crores aiming to boost exports to ₹1 trillion by 2029, even as disputes persist. Understanding these dynamics requires examining historical roots, key flashpoints, and emerging solutions.

📜 Historical Roots of the Conflicts

The origins of fisheries disputes in the Indian Ocean trace back decades, often intertwined with colonial legacies and post-independence border delineations. A prime example is the India-Sri Lanka fisheries dispute in the Palk Strait, centered around the uninhabited Katchatheevu Island. In 1974, India ceded the 285-acre island to Sri Lanka via a bilateral agreement, but ambiguities in maritime boundaries have fueled ongoing tensions. Tamil Nadu fishers from India frequently cross into Sri Lankan waters, leading to arrests, boat seizures, and occasional fatalities from naval firing.

By 2025, this dispute had escalated, with Sri Lanka reporting thousands of Indian vessels encroaching annually. Historical records show over 1,000 Indian fishermen detained yearly in the early 2020s, a trend continuing into 2026. Broader Indian Ocean conflicts stem from the United Nations Convention on the Law of the Sea (UNCLOS, 1982), which defines exclusive economic zones (EEZs) extending 200 nautical miles from coastlines. However, enforcement varies, allowing distant water fishing nations to exploit gaps.

Another layer involves yellowfin tuna fisheries, managed by the IOTC since 1993. European Union purse seiners have dominated catches, drawing criticism for depleting stocks. Reports from 2021 onward, echoed in recent X discussions, accuse EU fleets of using fish aggregating devices (FADs) that harm juvenile fish and bycatch species like sharks and turtles.

• Key historical milestones: 1974 Indo-Sri Lanka Maritime Agreement; 1993 IOTC formation; 2010s surge in IUU reports.
• Colonial impacts: Arbitrary boundaries ignored traditional fishing grounds.
• Post-2000 rise: Globalization increased industrial fleets from China and Europe.

🔥 Major Hotspots and Key Players

Several hotspots define fisheries disputes in the Indian Ocean. The Palk Bay remains volatile, with Indian fishers protesting Sri Lankan patrols. In 2025, NextIAS highlighted how maritime boundaries in the Palk Strait continue to spark incidents, including live releases of fishermen as diplomatic gestures.

Further afield, the equatorial Indian Ocean sees battles over yellowfin tuna. Industrial fleets from France, Spain, and Taiwan harvest vast quantities, while artisanal fishers in Maldives, Seychelles, and Somalia suffer. IUU fishing exacerbates this: Chinese trawlers equipped with illegal gear have been spotted in India's EEZ, as noted in 2019 reports persisting into recent years. Somali waters face piracy-linked IUU, threatening local food security.

Pakistani fishing boats occasionally cross into Indian waters near the Arabian Sea, as in a January 2026 incident where the Indian Coast Guard intercepted the vessel Al-Madina. Western Indian Ocean islands like Mauritius report distant fleets encroaching.

Posts on X in early 2026 underscore public sentiment, with users decrying EU blame-shifting and calling for IOTC reforms.

Photo by Rama Krushna Behera on Unsplash

📈 Recent Developments in 2025-2026

2025 brought mixed signals. India's Union Budget emphasized deep-sea fishing and tuna clusters, yet a Mongabay commentary critiqued it for overlooking ocean health. Warming seas, as detailed in a 2024 Mongabay piece updated in discussions, push Indian fishers from Kanyakumari into distant waters, increasing risks and disputes.

Early 2026 saw positive strides: India and Israel signed a Joint Ministerial Declaration on fisheries cooperation during a January visit, focusing on aquaculture tech transfer. The Biodiversity Beyond National Jurisdiction (BBNJ) Agreement, dubbed Ocean Law 2026, entered force on January 17, promising regulated high-seas access. India's re-election to the International Maritime Organization (IMO) bolsters its voice.

Challenges persist: VIF reports highlight China's naval expansion indirectly pressuring fisheries. A ScienceDirect study on Bay of Bengal management stresses sustainability strategies. X buzz around Kanduothgiri's tuna purchases in Maldives signals local efforts amid global tensions. Mongabay's analysis on India's budget reveals gaps in addressing disputes.

• India-Sri Lanka talks: Ongoing for joint patrols.
• IOTC sessions: Failed 2021 quota but pushing reforms.
• New threats: Climate-driven migrations.

🌍 Environmental and Economic Impacts

Overfishing has crashed yellowfin tuna biomass to 25% of unfished levels, per IOTC. This disrupts ecosystems, with bycatch killing endangered species. Economically, India’s 197.75 lakh tonnes production supports 14 million jobs, but disputes cost billions in seizures and lost catches. Sri Lankan fishers lose to Indian mechanized boats using destructive bottom trawling.

Climate change worsens it: Warmer waters shift stocks southward, forcing migrations into contested zones. Small island states like Seychelles face existential threats, with fisheries comprising 30% of GDP. Security risks include naval standoffs, mirroring broader Indian Ocean rivalries with China's 'String of Pearls' ports.

In 2026, global seafood demand amplifies pressures, but sustainable practices could yield $10-20 billion annually, per studies.

🤝 International Frameworks and Solutions

The IOTC coordinates tuna management, but enforcement lags. UNCLOS provides EEZ rights, while the new Ocean Law 2026 targets high-seas biodiversity. Bilateral efforts shine: India-Sri Lanka joint committees release fishermen periodically.

Promising solutions include:

• Technology: Vessel monitoring systems (VMS) and AI for tracking.
• Quotas: Science-based catch limits for tuna.
• Community patrols: Empowering locals.
• Alternative livelihoods: Aquaculture expansion, as in India-Israel pact.

ScienceDirect on Bay of Bengal strategies advocates integrated management. X trends push #EndImpunity for IUU.

India's maritime strategy, per Drishti IAS, eyes blue economy growth via sustainable fisheries.

Photo by Egle Sidaraviciute on Unsplash

🚀 Pathways Forward and Opportunities

Resolution demands multilateralism. Strengthening IOTC with binding quotas, investing in research via institutions like those listed on research jobs platforms, and climate adaptation are key. For professionals in marine policy or oceanography, careers in higher education offer avenues to influence—explore higher ed jobs in environmental sciences.

Actionable steps for stakeholders:

• Governments: Harmonize EEZ patrols.
• Fishers: Adopt eco-friendly gear.
• Consumers: Choose certified sustainable seafood.

With Ocean Law 2026, a cooperative era beckons, balancing security and sustainability.

In summary, while fisheries disputes in the Indian Ocean pose challenges, informed policy and collaboration pave the way. Share your insights on professors teaching ocean governance via Rate My Professor, pursue roles in higher ed jobs, or advance your career with advice from higher ed career advice. University jobs in marine studies await at university jobs, and employers can post a job to attract talent.