The Overlooked Costs of Conflict in the Strait of Hormuz
The Strait of Hormuz is most often framed in geopolitical and economic terms as an artery through which a substantial share of the world’s oil, gas, and petrochemical products flows. Yet, this narrow passage is not merely a strategic corridor, it is part of a living ocean system. Beneath its surface lies one of the most environmentally extreme and ecologically distinctive marine habitats on Earth.
The waters of the Arabian Gulf, including the Strait of Hormuz, are characterized by hyper-salinity and sharp temperature fluctuations. Summer sea temperatures can exceed thresholds tolerable for most marine systems, while winter brings comparatively colder conditions. This dual stressor has produced a unique ecological niche. Species that survive in this region have adapted and built strong resilience, capable of tolerating conditions that would prove lethal elsewhere.
Despite these harsh conditions, biodiversity is significant. Approximately 66 species of coral are found in the Gulf. Coral communities have evolved an exceptional heat tolerance, rendering them of growing scientific interest in the context of global climate change. Complementing the reefs are extensive seagrass meadows that serve as critical habitats, supporting the world’s second-largest population of dugongs, which are gentle marine mammals, commonly referred to as “sea cows”. The Gulf also houses populations of whale sharks, sea turtles, humpback dolphins, and thousands of fish species, forming a complex and interdependent ecosystem.
However, this ecological richness is acutely vulnerable to conflict. The introduction of naval mines, underwater detonations, and military activity poses both immediate and cumulative risks to marine life. Explosive shockwaves from bombs and mines can cause direct physical trauma to marine mammals, including internal injuries, disorientation, and mortality. Species such as dolphins and whales, which rely on echolocation, are particularly susceptible to acoustic disturbances. Sudden changes in underwater soundscapes can disrupt navigation, feeding, and communication patterns.
Equally concerning are the indirect effects. Seafloor disturbances from explosions can damage coral reefs and uproot seagrass beds; habitats that take years to recover. Suspended sediments reduce water clarity, impairing photosynthesis in seagrass and coral symbionts. Chemical pollutants released from damaged vessels or infrastructure can further degrade water quality, introducing toxins into already stressed ecosystems. For species with slow reproductive cycles, such as dugongs and sea turtles, even short-term habitat degradation can result in long-term population declines.
Looking ahead, the post-conflict trajectory of the Gulf’s marine ecosystems will depend on both the intensity of environmental damage and the speed of mitigation efforts. De-escalation, combined with targeted environmental intervention, offers a hopeful outlook. With reduced disturbances, active restoration of seagrass beds, and stricter controls on pollution, partial recovery is plausible over the medium to long term. Regional cooperation will be critical in this regard, as marine ecosystems transcend national boundaries.
The Strait of Hormuz should therefore be understood not only as a chokepoint of global energy security, but as a shared ecological asset. Its protection is intrinsically linked to regional stability, shaping a future in which both economic and environmental systems can endure.
Eng. Sabeka Khalid Ismaeel – Assistant Analyst in the Energy and Environmental Studies Program
