Natives and Introduced Fish

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
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
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
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