Paretroplus gymnopreopercularis
Overview
Paretroplus gymnopreopercularis is a species of cichlid from the vicinity of the confluence of the Amboaboa and Mangarahara Rivers near Mandritsara in northern Madagascar. Until its official scientific description in 2008, it was temporarily known as the Paretroplus nov. sp.
"sofia". It is endangered because of habitat degradation, overfishing and invasive species. Following the construction of a dam on the Mangarahara River, surveys have failed to relocate P.
gymnopreopercularis in this river.
Paretroplus gymnopreopercularis faces severe population decline primarily due to habitat degradation from deforestation and agricultural expansion around Madagascar's freshwater systems. The species is particularly vulnerable to water quality deterioration from sedimentation and pollution runoff, which affects the clear, well-oxygenated waters it requires for breeding. Competition and hybridization with introduced tilapia species has further compromised remaining populations, while overfishing for the aquarium trade has reduced breeding stock in accessible areas.
Habitat
This endemic Malagasy cichlid inhabits clear, slow-moving freshwater rivers and streams in Madagascar's central highlands, particularly favoring areas with rocky substrates and moderate current flow. The species requires well-oxygenated waters with stable temperatures and minimal sedimentation for successful reproduction.
Other threatened species in CICHLIDAE
Threatened in Madagascar
Frequently asked questions
Why is Paretroplus gymnopreopercularis classified as Critically Endangered?
Where does Paretroplus gymnopreopercularis live?
What are the main threats to Paretroplus gymnopreopercularis?
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