Red-finned blue-eye
The red-finned blue-eye is a tiny, critically endangered species of fish in the family Pseudomugilidae. It is the only species in its genus. The species was first recorded in 1990. It is endemic to central Queensland in Australia, where it is restricted to springs in Bush Heritage's Edgbaston Reserve.
Description
The fish reaches up to in length, and only males have red fins.Habitat and distribution
The fish only live in shallow, slightly salty water in Edgbaston Reserve, which is owned by Bush Heritage Australia. The water in the springs can vary from near freezing in the winter to in the summer.Conservation status
It is listed as Critically Endangered on the IUCN Red List, and as Endangered under Queensland's Nature Conservation Act 1992. In September 2012, the species was placed on the International Union for Conservation of Nature list of 100 most endangered species on the planet. It was originally found in seven springs in its small range in the Edgbaston Reserve, but by 2012 only survived in three of these, although another three translocated populations existed in the reserve. By 2021 were only found in one spring.They are at risk from extinction due to competition and predation by the flourishing introduced eastern mosquitofish, water extraction and habitat loss. Gambusia is a huge threat as an invasive species, which is out-competing many species in Australia.
An intensive conservation programme has been developed to save the species. The Edgbaston goby, 11 snail species, a small crustacean, a flatworm, a spider and a dragonfly are restricted to springs in the same reserve and also threatened.
In February 2021, captive-bred fish were released into the wild spring, boosting the population from about 200 to approximately 3,000.