Thousands of commercial vessels that have remained inactive in the Persian Gulf for an extended period may create an unexpected environmental threat.
While the maritime industry is focused on security risks, delays and operational challenges, scientists are warning about another hidden problem — marine organisms growing on the underwater parts of ships.
When vessels stay stationary for long periods, their hulls become a perfect surface for biofouling. Algae, shellfish and other marine organisms can attach themselves to the hull, propellers and underwater equipment.
After these ships return to international routes, these organisms may be transported to completely different parts of the world. Some non-native species can survive in new environments and become invasive, affecting local ecosystems and marine biodiversity.
The situation has attracted attention because thousands of vessels have experienced prolonged waiting periods in the Gulf region. Experts say that before these ships return to normal operations, additional hull inspections and cleaning may be required.
Biofouling is not only an environmental concern. Heavy growth on a ship’s hull increases water resistance, reduces efficiency, increases fuel consumption and can affect vessel performance.
The maritime industry has faced similar challenges before, with ships acting as carriers of invasive species across oceans. The current situation highlights another unexpected consequence of prolonged vessel inactivity.
For seafarers and ship operators, the issue is a reminder that even when a vessel is safely anchored, new risks can develop beneath the waterline.
