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The Lake Kutubu rainbowfish (Melanotaenia lacustris) is a species of fish in the family Melanotaeniidae. It is also known as turquoise rainbowfish. It is also known as turquoise rainbowfish. It is one of 13 fish endemic to Lake Kutubu , [ 2 ] a lake found within the Kikori River system in Papua New Guinea .
Melanotaenia lacustris Munro, 1964 (Lake Kutubu rainbowfish) Melanotaenia lakamora G. R. Allen & Renyaan, 1996 (Lakamora rainbowfish) Melanotaenia laticlavia G. R. Allen, Unmack & Hadiaty, 2014 (Aifuf rainbowfish) [4] Melanotaenia longispina Kadarusman, Avarre & Pouyaud, 2015 (Long-spine rainbowfish) [8]
Lake Kutubu is the second-largest lake in Papua New Guinea, [2] after Lake Murray, and, at 800 m above sea level, [2] the largest upland body of water, [3] with an area of 49.24 km², [2] and a total catchment area of 250 km². [3] Lake Kutubu and Lake Sentani form an ecoregion on the WWF's Global 200. [4]
Australian rainbowfish are popular aquarium fish along with Pseudomugil blue-eyes, which are another small, colourful fish found in a similar range and habitats. In the wild, some rainbowfish populations have been severely affected by the aggressive introduced eastern mosquitofish ( Gambusia holbrooki ), tilapia cichlids, and pollution.
Like other rainbowfish, this species shows sexual dimorphism. Breeding takes place year round and the male and female fish form pairs in which the females releases the eggs and the male fertilises them. 60-70 eggs are laid at each spawning and the golden coloured, round eggs attach to submerged vegetation with an adhesive filament.
The mountain rainbowfish (Melanotaenia monticola) is a species of rainbowfish in the subfamily Melanotaeniinae. It is endemic to Papua New Guinea , where it occurs in the Southern Highlands between Mendi and Lake Kutubu , in the Purari River system.
The lake is known for its biodiversity and in particular its endemic fish species. Mount Giluwe lies along the border between the Southern Highlands Province and the Western Highlands province. At 4,367m (14, 327ft), Mount Giluwe is the second tallest mountain in Papua New Guinea and the fifth tallest on the island of New Guinea.
11 cm (4.3 in) Duboulayi's rainbowfish: Melanotaenia duboulayi: 13–15 cm (5.1–5.9 in) a.k.a. Crimson-Spotted rainbowfish Australian rainbowfish: Melanotaenia fluviatilis: 13–15 cm (5.1–5.9 in) Lake Tebera rainbowfish: Melanotaenia herbertaxelrodi: 9 cm (3.5 in) Lake Kutubu rainbowfish: Melanotaenia lacustris: 12 cm (4.7 in) Parkinson's ...