CRCritically Endangered

Melanotaenia corona

Melanotaenia corona, commonly known as the Corona Rainbowfish, is a freshwater fish species endemic to Australia. This small, colorful fish belongs to the family Melanotaeniidae and is characterized by its distinctive iridescent scales and streamlined body typical of rainbowfish.

2

Countries

01Classification

Taxonomy & Classification

Kingdom

ANIMALIA

Phylum

CHORDATA

Class

ACTINOPTERYGII

Order

ATHERINIFORMES

Family

MELANOTAENIIDAE

Genus

Melanotaenia

Melanotaenia corona belongs to the family MELANOTAENIIDAE, order ATHERINIFORMES, within the ACTINOPTERYGII class.

02Description

Species Profile

Melanotaenia corona, commonly known as the Corona Rainbowfish, is a freshwater fish species endemic to Australia. This small, colorful fish belongs to the family Melanotaeniidae and is characterized by its distinctive iridescent scales and streamlined body typical of rainbowfish. The species inhabits specific freshwater systems in northern Australia, where it occupies shallow, vegetated areas of streams and rivers. Like many Australian rainbowfish, M. corona plays an important ecological role in its aquatic ecosystem, feeding on small invertebrates and contributing to the food web dynamics of its native waters. The species faces significant conservation challenges that have led to its classification as Critically Endangered by the IUCN. Primary threats include habitat degradation, water quality deterioration, and potential impacts from invasive species. Agricultural runoff, urban development, and altered water flow regimes have contributed to the decline of suitable habitat for this species. The limited distribution range makes the population particularly vulnerable to environmental changes and human activities. Conservation efforts for M. corona involve habitat protection measures and water quality monitoring in its native range. Research initiatives focus on understanding the species' ecological requirements and population dynamics to inform management strategies. Collaboration between government agencies, conservation organizations, and local communities is essential for implementing effective protection measures. The species' conservation status highlights the broader challenges facing Australia's endemic freshwater fish fauna and the need for comprehensive aquatic ecosystem management.

Melanotaenia corona faces threats from habitat degradation and water quality deterioration in its native freshwater systems. Agricultural runoff, urban development, and altered water flow regimes have contributed to the decline of suitable habitat. The species' limited distribution range makes it particularly vulnerable to environmental changes and human activities.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFishes
03Habitat

Habitat & Distribution

Melanotaenia corona inhabits shallow, vegetated areas of freshwater streams and rivers in northern Australia. The species prefers areas with good water quality and natural flow regimes typical of undisturbed aquatic systems.

Wetlands (inland) - Permanent rivers/streamsMajor
04Threats

Threats

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IUCN Red List: Critically Endangered

Melanotaenia corona faces threats from habitat degradation and water quality deterioration in its native freshwater systems. Agricultural runoff, urban development, and altered water flow regimes have contributed to the decline of suitable habitat. The species' limited distribution range makes it particularly vulnerable to environmental changes and human activities.

Invasive non-native/alien species/diseases

Ongoing

Logging & wood harvesting

Ongoing

Roads & railroads

Ongoing
05Conservation

Conservation Actions

Species recovery
06Range

Found in 2 Countries

Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2025). Melanotaenia corona (Melanotaenia corona). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/corona-rainbowfish

Full citation guide & data usage terms