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Author

Lucy Stuart

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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)
It’s no secret that Australian native fish provide many benefits to the ecosystems they inhabit and the wider community. However, native fish face various threats to their survival such as habitat degradation, climate change, invasive pests and over-exploitation. Australia's large geographic area coupled with the vast diversity in fish and fisheries presents a challenge for
Fish stocking is an important tool used to supplement existing fisheries, create new ones and support populations of fish found in rivers, creeks and other waterways. Stocking may be done for the benefit of commercial, recreational or Cultural fishing, but may also be done for ecological conservation to restore or increase the population of threatened/endangered
Fish screens can be a useful tool for irrigators and lifesavers for fish — without fish screens over irrigation pumps, debris and wildlife can be sucked up into pipes that draw water from rivers. This causes fish and other creatures to become trapped and die, which in turn partially or fully blocks the pipes, forcing
Within the Murray Darling Basin (MDB), experts have estimated a decline in native fish abundance of ~90% since European settlement. Things such as changes to the hydrological regime, habitat degradation, river regulation and infrastructure, over-fishing, and impacts from alien species are all contributing to the ongoing decline (Koehn and Lintermans 2012; Lintermans 2013). Ongoing monitoring
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