Evaluations by the Murray-Darling Basin Authority (MDBA) show the native fish populations improving for the first time in 150 years! Actions by recreational fishers to abide by bag and size limits has been identified as one aspect helping the health of native fish populations (read ABC article).
What are have the MDBA identified as major threats?
With regards to alien species, which are they?
In 2016 the Australian Government announced plans to release the virus into the Murray-Darling basin in an attempt to control carp populations in the water system.
A $15 million project is underway to plan and prepare to release the carp herpes virus as early as 2019.
Even if one single alien species (carp) were eradicated, what do we need to do, to address other threats, and get native species breeding again? Can any of the other numerous alien species take over?
Tables sourced from –
https://www.mdba.gov.au/sites/default/files/pubs/MDBA-Fish-species-book.pdf
