Document ID: chunk:federal_register_of_legislation:F2019L00106:body:0:p5
Version: federal_register_of_legislation:F2019L00106
Segment Type: other
Provision Reference: 
Character Range: 13079–16089

increased in size and/or distribution at each known location.
    * Self-sustaining populations of Macquarie perch have been established at locations in its natural range where it once historically occurred but no longer occurs.
    * A long-term population monitoring strategy has been implemented and is ongoing for the Macquarie perch in the Australian Capital Territory, New South Wales and Victoria.
    * There is improvement in understanding of what threat mitigation is required to recover the Macquarie perch.
    * There is implementation of threat mitigation measures to protect known Macquarie perch populations.
    * Macquarie perch can be reliably bred in closed-life cycle hatcheries, which are supplemented with broodstock from the wild, as appropriate, to maintain genetic diversity.
    * Genetic diversity of the Macquarie perch increases or remains the same.
Criteria for failure:
This recovery plan will be deemed to have failed if; within 10 years, the following have occurred:
    * The number of populations of Macquarie perch has decreased.
    * No strategy for population monitoring has been developed or conducted for the species and population trends are not known in any or all of the Australian Capital Territory, New South Wales or Victoria.
    * Little understanding of threat mitigation has been achieved to recover the Macquarie perch.
    * Little advancement in the implementation of a wide-range of threat mitigation measures (above current levels or activities) has occurred to protect known Macquarie perch populations.
    * Little advancement in success of closed-life cycle breeding within hatcheries.
    * The conservation status of the Macquarie perch has declined during the life of the plan.
    * Genetic diversity of Macquarie perch decreases.

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2 Introduction
This document constitutes the Australian National Recovery Plan for the Macquarie Perch (Macquaria australasica). The plan considers the conservation requirements of the species across its range and identifies the actions to be taken to ensure the species' long-term viability in nature, and the parties that will undertake those actions. This is the first National Recovery Plan for Macquarie perch.
The Macquarie perch is a moderate sized, large eyed, secretive freshwater fish native to the cooler middle-upper reaches of the Murray-Darling Basin (Butcher 1967; Lake 1978; Lintermans 2007). The species was originally described from specimens collected from the Macquarie River in New South Wales, but has long since disappeared from that part of the Murray-Darling Basin. Museum records also exist for Macquarie perch from the Murray River in South Australia but the species is now presumed extinct from the lower Murray River (Hammer & Walker 2004). Macquarie perch are now found as far north as the Abercrombie River in the Murray-Darling Basin, as well as the eastern coastal, Hawkesbury-Nepean, Georges and Shoalhaven river systems in New South Wales (Harris & Rowland 1996; Lintermans