The aim of this guideline is to aid maritime administrators, or other lead agencies working with ballast water management, to assess and quantify (as appropriate and possible) the potential economic consequences of unintended marine species introductions. Such economic understanding is intended to support sound decision making in relation to IAS risk reduction, preparedness and response planning, and in particular as a source of information for the development of a National Ballast Water Management Strategy (see GloBallast Monograph No. 18).
The successful use of these guidelines does not require specialist knowledge of environmental economic approaches and methodologies. However, the involvement of environmental economic specialists to undertake a technical assessment is strongly recommended.
This document is also closely linked to the Guidelines on National Ballast Water Status Assessment
(GloBallast Monograph No. 17). Much of the information needed in the economic assessment will already have been collected as part of the national ballast water status assessment.
Several manuals and guidelines for managing marine invasive species, with particular attention to ballast water, have been published by organizations such as the International Maritime Organization (IMO), the GloBallast Partnerships Programme, and the Global Invasive Species Programme (GISP). GloBallast, in
collaboration with the IUCN Global Marine Programme, has also prepared guidelines for the development of National Ballast Water Management Strategies. These guidelines on economics assessments are intended to complement such management guidelines.