Archive · 29 Jul 2026
Stalled ships in Hormuz may spread invasive species globally
A lot of ships are stuck in the Persian Gulf because of some problems between countries.
These ships have been sitting in the water for a long time, and tiny sea creatures like barnacles and algae are growing on their bottoms.
When the ships start moving again, these creatures could travel to new places and cause big problems for the ocean and the environment.
The ships will also use more fuel because of all the extra weight and drag from these creatures.
Scientists are worried and want to make sure the ships are cleaned before they leave to stop the spread of these creatures.
More than 1,500 commercial vessels stranded in the Persian Gulf due to a maritime standoff.
Biofouling on ship hulls could spread invasive marine species globally.
Prolonged inactivity has allowed dense layers of marine organisms to colonize ship hulls.
Invasive species from the Persian Gulf could outcompete native marine life in new ecosystems.
Biofouling increases fuel consumption and operational costs for shipping companies.
- Who
- International team of marine biologists and the International Maritime Organization (IMO)
- What
- Potential global ecological crisis due to biofouling on stranded ships in the Persian Gulf
- When
- Since February 28, with a duration of nearly five months
- Where
- Strait of Hormuz, Persian Gulf
- Why
- Prolonged standoff and biofouling on stranded vessels
Environmental and Economic Concerns
Shipping Industry Challenges
Biofouling Impact
Environmental and Economic Concerns
Biofouling poses a significant threat to global marine ecosystems by spreading invasive species.
Shipping Industry Challenges
Biofouling increases fuel consumption and operational costs for shipping companies.
Preventive Measures
Environmental and Economic Concerns
Mandatory hull inspections and cleaning are necessary to prevent the spread of invasive species.
Shipping Industry Challenges
Hull cleaning is expensive and in high demand, making it a financial burden for shipping companies.
- Number of Stranded Vessels
- More than 1,500
- Duration of Standoff
- Nearly five months
- Increase in Fuel Consumption
- 20-25% for slimy coating, over 50% for heavy barnacle growth
- Cost of Hull Cleaning
- Close to $8,000 per vessel
- Increase in Hull Cleaning Costs
- Nearly 60%
