ProvinceProvincial BioregionRealmEcoregionMesoscale Bioregion

The Biogeographic Setting partitions the marine environment according to bioregionalisations of coastal and shelf areas. These are natural habitat boundaries across broad latitudinal and longitudinal gradients based on variation in climatic, geologic and evolutionary processes; which act to influence the structure and functioning of regional and local ecosystems.

Choice of classification

The Biogeographic Setting allows for classification by either:

Biogeographic Setting Visual Classification Guide

Below are samples of the Biogeographic Setting as implemented in Australian waters. The MEOW bioregions have a global coverage while the IMCRA bioregions are restricted to the Australian Exclusive Economic Zone.

MEOW Ecoregions at level 3

IMCRA Provincial Bioregions at level 2