Nauru's Territorial Sea Baseline was defined using the 1993 topographic map produce by Survey Graphics Pty Ltd of Perth, Western Australia, under the direction of the Ministry of Island Development and Industry. The map is based on UTM Grid Zone 58, which is referred to the World Geodetic System 1972 (WGS 72). The WGS 72 coordinate system was then converted to WGS 84 using transformation parameters tabled on Nauru Maritime Boundaries Technical Report (TR 399).
An exclusive economic zone extends from the baseline to a maximum of 200 nautical miles (370.4 km; 230.2 mi), thus it includes the contiguous zone. A coastal nation has control of all economic resources within its exclusive economic zone, including fishing, mining, oil exploration, and any pollution of those resources.
The Nauru Territorial Sea Zone was measured from the low water line of the seaward side of the normal baseline (coast) or the low-water line of the seaward side of the reef fringing the coast. MarZone delimitation software was used to generate territorial sea limit using the World Geodetic System 1984 (WGS 84) reference datum as stipulated under the Nauru Sea Boundaries Act 1997.
Nauru Contiguous Zone was calculated from its territorial sea baseline using a special maritime boundaries delimitation software called MarZone. The Proclamation Sea Boundaries Act 1997 states the geographical coordinates are expressed using World Geodetic System 1984 (WGS84).
This report fulfills Nauru's 5th reporting requirement to the Convention on Biological Diversity which is also Nauru's first national report to be submitted to the convention. In this regard, the report attempts to provide a comprehensive assessment of the status and trends of our island’s biodiversity and threats to its survival and viability, and it also provides an account of actions that have been implemented to protect and conserve Nauru's biodiversity.