The GCPO LCC region contains some of the most diverse aquatic biota in the world. The streams and rivers on which this biota depends are valuable conservation and economic resources. However, fragmentation of streams and rivers by dams and other barriers is a primary threat to the health of resident and anadromous fish species in southern rivers. Conservation planning in the region requires an assessment of the degree of fragmentation of streams and rivers and potential impacts on fish populations. However, the ability to conduct a connectivity assessment is limited in the GCPO LCC region due to the lack of a comprehensive dataset of fish barrier locations, attributes, and links to basic river maps. SARP proposes to address this need by developing a comprehensive barrier inventory and prioritization database for the GCPO LCC region.