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Bloomfield river cod

The Bloomfield river cod is a no-take species. In Queensland, catching and possessing this fish is totally prohibited. If accidentally caught, these species should immediately and carefully be returned to the water.

  • Bloomfield River cod
    Bloomfield River cod
Scientific name

Guyu wujalwujalensis

Other names

Tropical nightfish

Frequent misidentifications



Small perch-like fish with distinct pores on head and lower jaw. Colouration - olive to dark green overall, paler on the belly. Greenish -yellow head with 2 vertical dark bars.

  • Known only from the Bloomfield River, North eastern Australia
  • Shelters in the cover of undercut banks, boulders, logs snags and submerged root masses during the day
  • maximum length - 10cm
Size and possession limits
  • minimum size - N/A NO TAKE SPECIES
  • possession limit - N/A NO TAKE SPECIES


  • Department of Primary Industries and Fisheries, 1997, Fish Guide. Saltwater, Freshwater and Noxious Species. The Great Outdoors Publications, Brisbane
  • FishBase - A global information system on fishes
  • Fisheries Act 1994 and Fisheries Regulation 2008
  • Grant, EM, 1997, Grant's Guide To Fishes. EM Grant Pty Limited, Brisbane
  • Merrick, JR and Schmida GE, 1984. Australian Freshwater Fishes: Biology and Management. Griffin Press Limited, South Australia
  • Allen, G.R., Midgley, S.H., and Allen, M. Freshwater fishes of Australia. CSIRO Publishing, Victoria.
  • Schmida, G. Freshwater Fishes. Steve Parish Publishing Pty Ltd., Queensland.

Further information