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To understand how fish are counted in fishways, first it is important to understand why we want to count these fish in the first place.

Since 1922, when the first weir was constructed, there have been efforts to help fish move through the waterways. Our timeline shows the progress of the fishway infrastructure.

Fishways are important for the passage of fish through barriers such as weirs, to allow them to migrate up and down a river. There are many fishways along the River Murray. Learn about how they work, their types, locations, history and fish movement.

In 2020–21, monitoring assessed how carbon, nutrients and zooplankton (a type of water bug) changed along the length of the River Murray in response to water for the environment.

Monitoring reports from the River Murray, one of The Living Murray icon sites.

This report includes the River Murray revised Water Quality Monitoring Program to characterise the overall water quality changes over time.