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There is also a high potential for them to be spread through ballast water.
In addition, something needs to be done about exotic species and the problem of ballast water.
Stability has been improved, to reduce the need for ballast water.
This guide explains the need to control and manage ballast water.
This Convention will be a global treaty on the management of ballast water.
But the biggest single mechanism, scientists believe, is the ballast water from ships.
The other two managed to get under friends who doused them with ballast water.
But with so much ballast water in motion around the world, many organisms inevitably do.
It also is the first chemical-free solution to ballast water treatment.
Currently, regulating ballast water is more of a national, not international, endeavor.
We need better control of ship routes, and restrictions on releasing ballast water.
Each was introduced to the Estuary, probably through ballast water exchange since the 1980s.
It is thought to have been introduced by untreated ballast water from international ships.
Individual states affected by invasive species from ballast water are also working to address the issue for their waters.
The space between the two hulls is sometimes used for storage of fuel or ballast water.
Ballast water taken on to stabilize the ship can also disrupt ecosystems.
As the boat takes on ballast water the total or "net' density is changed.
The purification of ballast water is a simple procedure that must be undertaken across the board.
During loading, this ballast water is pumped out from these compartments.
This was the first record in the Mediterranean and is thought to have been brought there in ballast water.
The most likely cause of its introduction is accidentally by merchant ships' ballast water.
Ballast water discharges by ships can have a negative impact on the marine environment.
It has been reported that ship ballast water is responsible for the transport of approximately 3,000 species worldwide each day.
They have been drinking ballast water for a week, and had expected Aurora to arrive with fresh supplies tomorrow.
Lists general information and resources for ballast water.