Studies the various aspects of ballast water management to prevent the spread of non-indigenous species and other undesirable matter transported in ships' ballast tanks.

Ships have been recognized since about 50 years as a major vector for the introduction of non-indigenous and harmful organisms.

An initiative under the International Waters portfolio of the Global Environment Facility (GEF).

Discusses the problem of invasive oganisms in ballast water and the need for container ships. Describes potential environmental impact of developing a megaport in Quonset Bay, RI.

The Clearinghouse functions as a central source of information on ballast water and ballast-mediated invasions.