To prevent biological cross-contamination, ballast water exchange maneuvers should be carried out in ocean waters with a depth of at least:
Direct Answer
Option D: 200 meters
To minimize the transfer of invasive aquatic species, IMO ballast water management guidelines recommend performing ballast water exchange in deep ocean waters, specifically at least 200 nautical miles from the nearest land and in water at least 200 meters deep.
All Options
Detailed Explanation & Context
To minimize the transfer of invasive aquatic species, IMO ballast water management guidelines recommend performing ballast water exchange in deep ocean waters, specifically at least 200 nautical miles from the nearest land and in water at least 200 meters deep.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Safety & Social Responsibilities (PSSR).
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