Predation by Gambusia holbrooki (plague minnow)

NSW Threat Abatement Plan

In January 1999, predation by the plague minnow (Gambusia holbrooki) was listed as a key threatening process under the Threatened Species Conservation Act 1995. Following this, a threat abatement plan was developed to reduce the impacts of the plague minnow on threatened species and help conserve biodiversity in general.

1 August 2003
NSW National Parks and Wildlife Service
  • ISBN 0-73136-6719
  • File PDF 0.5MB
  • Pages 69
  • Name plague-minnow-gambusia-holbrooki-threat-abatement-plan.pdf

The NSW Scientific Committee determined that predation by gambusia is a serious threat to the survival of threatened species such as the green and golden bell frog (Litoria aurea) and New England bell frog (Litoria castanea) and could cause other native frog species to become threatened.

Since their introduction into Australia in 1925 for the purpose of mosquito control, gambusia have become widespread in NSW, especially modified waterways, and are considered to be a contributing factor to the decline of frogs (threatened or otherwise) as well as other native species such as freshwater fishes and macro-invertebrates.

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