Mogurnda maccuneae

Mogurnda maccuneae, commonly known as the Daintree mogurnda or northern trout gudgeon, is a small freshwater fish endemic to the Daintree River system in tropical north Queensland, Australia. This gudgeon species belongs to the family Eleotridae and is characterized by its distinctive coloration and relatively small size. The species inhabits clear, flowing freshwater streams and rivers within the Daintree catchment, where it occupies specific microhabitats among rocks, fallen timber, and aquatic vegetation.

Mogurnda maccuneae faces severe threats that have led to its classification as Critically Endangered by the IUCN. The primary threats include habitat degradation from agricultural runoff, sedimentation, and water quality decline associated with land-use changes in the catchment. Climate change poses additional risks through altered rainfall patterns and increased frequency of extreme weather events that can affect water flow and quality.

The species' extremely limited distribution makes it particularly vulnerable to localized threats and environmental changes. Conservation efforts focus on habitat protection within the Daintree region, water quality monitoring, and catchment management practices that reduce agricultural and urban impacts. Research continues to better understand the species' ecology, population dynamics, and specific habitat requirements to inform targeted conservation strategies.

The protection of riparian vegetation and implementation of sustainable land management practices in the Daintree catchment are critical for the species' long-term survival.

This species inhabits clear, flowing freshwater streams and rivers within the Daintree River catchment in tropical north Queensland. It occupies microhabitats among rocks, fallen timber, and aquatic vegetation in these pristine waterways.