Movement and Migration

Collaborative science and conservation of wide-ranging species We know that fish don’t respect state and territory borders, yet often recovery and research efforts for native fish happen within jurisdictions. Whilst the work being done is important and valuable, imagine what can be achieved through collaboration. This month World Fish Migration Day 2024 is happening on
Eels have been somewhat of an enigma to researchers, however, they have provided a vital fishery for Indigenous Australians for millennia. Aboriginal people in the coastal Darlots Creek system in VIC harvested and farmed Short-finned eels via complex systems of stone-walled trap and channels and ponds. Freshwater eels are a part of the family Anguillidae
Carp gudgeons are a mysterious species typically found in slow-flowing or still waters that frequently baffle fish enthusiasts and scientists alike. A small and laterally compressed species, the carp gudgeons have caused great confusion over their identification across southeastern Australia. Intially, only one species of carp gudgeon was formally described in the Murray-Darling Basin (MDB)
Macquarie perch were once abundant in their namesake, the Macquarie River, yet are now extremely threatened throughout the Murray-Darling Basin.  The species is considered extinct in SA and endangered in NSW, VIC and ACT. Extinction is looming for this little fish, with only four isolated wild populations left in NSW, spanning less than a combined
Epizootic haematopoietic necrosis virus (EHNV) is a lethal virus that infects fish through the body surface or gastrointestinal tract. Once in the host, it multiplies in the blood forming organs such as the spleen and kidney and destroys them in the process, ultimately killing the fish. EHNV is only present in Australia, endemic to catchments
From the mighty Murray cod to the beloved Golden perch, some of our favourite native species have enjoyed the benefits of learnings gathered from the Flow Monitoring, Evaluation and Research program (Flow-MER). The program uses research to investigate how water for the environment can be used to enhance specific parts or processes of the fish
Hume Dam photographed from above on a bright sunny day, with a small flow visible.
‘Flow hydrodynamics’, ‘turbulent kinetic energy’, ‘rheotactic behaviour’ - whilst these terms might not mean much to you, they are essential parts of native fish migration in the Murray-Darling Basin.    The Murray-Darling Basin is one of the most regulated river systems in the world, home to over 10,000 barriers preventing fish from migrating. These barriers
Male hands hold up a Murray cod on a bright sunny day with the Gwydir in the background.
Government agencies, local communities and First Nations representatives are exploring ways to help return the once iconic Murray cod to its former glory in the Darling-Baaka River between Bourke and Louth.  The response comes after extended drought and resulting poor water quality had a devastating effect on native fish populations across the Darling-Baaka, with sampling