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Ships stuck in strait of Hormuz pose ‘super-spreader’ biodiversity threat, scientists warn

The study says hull fouling on stranded vessels could spread hardy warm-water organisms to distant ports and raise fuel and cleanup costs.

  • On July 22, marine biologist Mario Tamburri and an international team warned that more than 1,500 commercial vessels stranded in the Persian Gulf since February 28 could trigger a global 'bioinvasion super-spreader event.'
  • The Strait of Hormuz closure forced vessels to anchor in warm, saline waters for nearly five months, creating ideal conditions for algae, barnacles, and other marine organisms to colonize ship hulls aggressively.
  • Specialized hull-cleaning costs have surged nearly 60 per cent to approximately $8,000 per vessel, while biofouling increases fuel consumption by more than 50 per cent.
  • Researchers recommend mandatory hull inspections and cleaning before vessels depart, as ships may transport harmful parasites and pathogens threatening global fisheries and coastal ecosystems.
  • Once vessels rejoin global shipping routes, resilient Gulf species could permanently alter ecosystems across Europe, Asia, and Africa, posing a complex biosecurity challenge difficult to reverse.
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This article was originally published on Cedarnews.net. For more exclusive news and reports, visit our website. Elke Scholiers/Getty Images. An international team of marine biologists has warned that the closure of the Strait of Hormuz portends an “imminent environmental crisis” and poses a “massive threat to global biosecurity,” according to a report published in the journal Biological Invasions. The scientists say that the months-long strandin…

The Billings GazetteThe Billings Gazette
+24 Reposted by 24 other sources
Center

Iran war could unleash a marine 'super-spreader event'

Scientists warn that the idling vessels near the Strait of Hormuz could unleash an invasive marine "super-spreader event" when trade resumes.

·Billings, United States
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Center

According to marine biologists, cargo ships stranded in the Persian Gulf may be transporting harmful alien species around the world.

·Helsinki, Finland
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Lean Left

The immobilization of ships due to the closure of the Strait of Ormuz could pose a biological "serious threat", fear experts.

·Montreal, Canada
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meneame.net broke the news on Monday, July 27, 2026.
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