Mature fish: pools, associated with snags and large woody debris
Spawning: eggs deposited on snags, rocks or firm clay
Age at maturity/spawning: 4 years; extreme variability depending on location and growth rate
Spawning season: October—December
Spawning cue: Onset of upstream migration generally coincides with elevated water levels. High larval survival occurs when significant rise in water level coincides with the breeding season.
Spawning frequency: annual
Critical water temperature for spawning: 20 ºC
Time to hatching: 4.5—13 days depending on temperature
Spawning migration: often upstream
Longevity: 30 years
Habitat-specific spawner (spawn and recruit under high and low flow, habitat important)
^ Australian Government (1999), Environment Protection and Biodiversity Conservation Act.
Last updated: 22 March 2013
This page should be cited as:
Department of Environment and Science, Queensland (2013) Murray River cod (Maccullochella peelii peelii), WetlandInfo website, accessed 13 April 2023. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/ecology/components/fauna/fish/murray-cod.html