Oxleyan pygmy perch (Nannoperca oxleyana) are a small freshwater fish endemic to the coastal region of eastern Australia, from northern NSW to south-eastern Queensland. They have specific habitat requirements and are patchily distributed within this range. They are an endangered species - http://www.dpi.nsw.gov.au/fishing/speciesprotection/conservation/what-current/endangered-species/oxleyanpygmy-perch/oxleyan-pygmy-perch.

The methods used to create the predicted current distribution of Oxleyan Pygmy Perch are as follows. As the species occur in wetlands, the method described fully in: NSW Department of Primary Industries (2015), NSW Fish Community Status 2015 – Final Report, did not map all potential habitat. In addition to this modelling, records and previous critical habitat mapping (2007) were used. Critical habitat stream lines were identified from the 2012 NSW Topographic Hydro Line. Wetland boundaries were delineated from SEPP (Dec 2016 version).