Recovery of the endangered trout cod, Maccullochella macquariensis: What have we achieved in more than 25 years?

John D. Koehn, Mark LINTERMANS, Jarod P. Lyon, Brett A. Ingram, Dean M. Gilligan, Charles R. Todd, John W. Douglas

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Recovery of threatened species is often necessarily a long-term process. The present paper details the progress towards the recovery of trout cod, Maccullochella macquariensis, an iconic, long-lived fish species first listed as threatened in the 1980s. The objectives, actions and progress over three successive national recovery plans (spanning 18 years) are assessed, documenting changes to population distribution and abundance and updating ecological knowledge. Increased knowledge (especially breeding biology and hatchery techniques, movements, habitats and genetics) has greatly influenced recovery actions and the use of a population model was developed to assist with management options and stocking regimes. Key recovery actions include stocking of hatchery-produced fish to establish new populations, regulations on angling (including closures), education (particularly identification from the closely related Murray cod, M. peelii) and habitat rehabilitation (especially re-instatement of structural woody habitats). In particular, the establishment of new populations using hatchery stocking has been a successful action. The importance of a coordinated long-term approach is emphasised and, although there is uncertainty in ongoing resourcing of the recovery program, much has been achieved and there is cautious optimism for the future of this species.
    Original languageEnglish
    Pages (from-to)822-837
    Number of pages16
    JournalMarine and Freshwater Research
    Volume64
    Issue number9
    DOIs
    Publication statusPublished - 2013

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    hatcheries
    hatchery
    Maccullochella peelii peelii
    habitats
    sport fishing
    population distribution
    threatened species
    fish
    habitat
    education
    recovery plan
    uncertainty
    population regulation
    angling
    Biological Sciences
    reproductive biology
    breeding
    Maccullochella macquariensis
    stocking
    methodology

    Cite this

    Koehn, John D. ; LINTERMANS, Mark ; Lyon, Jarod P. ; Ingram, Brett A. ; Gilligan, Dean M. ; Todd, Charles R. ; Douglas, John W. / Recovery of the endangered trout cod, Maccullochella macquariensis: What have we achieved in more than 25 years?. In: Marine and Freshwater Research. 2013 ; Vol. 64, No. 9. pp. 822-837.
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    Recovery of the endangered trout cod, Maccullochella macquariensis: What have we achieved in more than 25 years? / Koehn, John D.; LINTERMANS, Mark; Lyon, Jarod P.; Ingram, Brett A.; Gilligan, Dean M.; Todd, Charles R.; Douglas, John W.

    In: Marine and Freshwater Research, Vol. 64, No. 9, 2013, p. 822-837.

    Research output: Contribution to journalArticle

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