Dalhousie Mogurnda

Interesting Info

• The Dalhousie Mogurnda is a freshwater fish species that is endemic to Australia. The species is found in thermal springs and adjacent waterways within the Dalhousie Springs complex in South Australia.
• Dalhousie Springs are a group of artesian mound springs, fed by ancient underground water that surfaces in the middle of the desert.
• The fish thrives in warm waters (often 20–30 °C / 68–86 °F), which is unusual compared to many cooler-water gudgeons.
• Its body is pale brown to olive with scattered red to orange spots on the sides and fins, giving it a colourful, speckled appearance.
• The species feeds on insect larvae, worms, crustaceans, and sometimes small fish or tadpoles.
• They are strongly tied to permanent spring pools, where aquatic vegetation and algae provide shelter and food.
• Because Dalhousie Springs are isolated, the fish has adapted to survive in extreme desert conditions, making it a unique desert fish story.
• Breeding occurs in spring and summer. Males guard small nests, often on submerged plants or rocks, where females lay adhesive eggs. The male fans and protects the eggs until they hatch.
• Despite being little-known to the public, the Dalhousie Mogurnda is one of Australia’s most remarkable examples of a fish adapted to life in the desert.
• The Dalhousie Mogurnda is considered a flagship conservation species for Australia’s desert springs. Protecting it helps safeguard many other rare plants and animals in these fragile habitats.
• The lifespan is short, generally 2–3 years, which is typical of small freshwater gudgeons.