Scientific Glossary

Ion-Exchange Chromatography.

The reactions between impacts (between the impacts of just one action and/or between the impacts of multiple actions in the Area).

Areas which are representative of the environmental characteristics of a particular region to be used for assessing the effect of activities in that region on the marine environment. Compare to Impact Zone and Preservation Reference Zone. Synonymous withImpact Reference Area. Abbreviated to IRZ

Polymetallic sulphides through which warm water is no longer flowing into the overlying seawater (i.e., they are "cold"). Disturbance of these sulphides may result in renewal of hydrothermal fluxes into the water column, turning inactive sulphides into active sulphides(hence the concept of "dormant" sulphides). Synonomous with dormant sulphides. Opposite of Active Sulphides

Impacts on the environment that are not a direct result of an activity, often produced away from the activity or as a result of a complex pathway (physical, chemical, biological). Synonymous with second-level impacts, third-level impacts, and secondary impacts.

Pertaining to the infauna.

An autonomous international organization established under the 1982 United Nations Convention on the Law of the Sea and the 1994 Agreement relating to the Implementation of Part XI of the United Nations Convention on the Law of the Sea. The Authority is the organization through which States Parties to the Convention shall, in accordance with the regime for the seabed and ocean floor and subsoil thereof beyond the limits of national jurisdiction (the Area) established in Part XI and the Agreement, organize and control activities in the Area, particularly with a view to administering the resources of the Area. Abbreviated to ISA. Divided into the Assembly, the Council, the Legal and Technical Commission, the Finance Committee and the Secretariat. {Web Page}

An introduced species that out-competes native organisms for space and/or resources. Synonymous with alien species.

Intergovernmental Oceanographic Commission (UNESCO)

A quantitative method for separating charged molecules of various sizes, from large proteins to small nucleotides.

Impact Reference Area

International Seabed Authority

Line of constant pressure. Compare to isotherm.

Of equal temperature.

International Whaling Commission