hat
Ballast dlo: dlo lanmè ki itilize estabilize bato kago yo. Si yon bato pa gen okenn kago, li se plen ak dlo estabilize li. Lè li gen kago, tank yo ballast yo vide rès dlo. Dlo ki chaje nan yon sèl pò (ak espès maren nan li) ka dechaje nan yon lòt pò (moun ap jete fatra espès sa yo nan yon nouvo anviwònman). Kèk nan espès sa yo vin pwogrese. ref
eng
Ballast water: Seawater that is used to stabilize cargo ships. If a ship has no cargo, it is filled with water to stabilize it. When it has cargo, the ballast tanks are emptied. Water loaded at one port (with marine species in it) may be unloaded at another port (dumping these species into a new environment). Some of these species become invasive. ref