This edition of RipRap is on environmental water allocation, a topic that is at the forefront of people's minds as economic, environmental and social demands for water are being made in every region of Australia.

The rivers, floodplains, wetlands and estuaries of northern Australia are key resources.

In this publication Theme: River and riparian habitat for fish; Freeing-up our rivers for native fish: Coastal fisheries and agriculture; A basin wide plan for native fish; Fish habitat management challenges; The Nati