Pollution By Ballast Water (Migration of invasive species)
The purpose of the Ballast Water Management System is to minimize the transfer of Non-indigenous harmful aquatic organisms and pathogens from one area to another (arrival port) through the ship’s ballast water system. Invasive marine species are one of the four greatest threats to the world’s oceans.
Unlike other forms of marine pollution, such as oil spills, where ameliorative action can be taken and from which the environment will eventually recover, the impacts of invasive marine species are most often irreversible. Through the use of prescribed ballast water management practices, standard operating procedures, and training, the objectives can be safely met.
Each vessel should be supplied a ship-specific “Ballast Water Management Plan”. This Plan gives general guidance and requires additional input from the ship to take into account the vessel’s own unique arrangements.
It also includes a log for all ballast handling and is to be presented to port state inspectors when required as a means of proof that correct procedures have taken place.
Even if a ship is trading in an area where ballast water information is not required, this Logbook is still required to be completed to maintain a history of ballast source.
The ship’s safety during ballast handling supersedes any other requirement.
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