Aquamarine rainbow fish

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Aquamarine rainbow fish
Melanotaenia lacustris thomnight 001.jpg

Aquamarine rainbow fish ( Melanotaenia lacustris )

Systematics
Ovalentaria
Superordinate : Earfish relatives (Atherinomorphae)
Order : Earfish (Atheriniformes)
Family : Rainbow fish (Melanotaeniidae)
Genre : Melanotaenia
Type : Aquamarine rainbow fish
Scientific name
Melanotaenia lacustris
Munro , 1964

The aquamarine rainbow fish ( Melanotaenia lacustris ) is a freshwater fish from Papua New Guinea , also known as the Kutubu rainbow fish . It was first collected in 1955 and scientifically described by the Australian ichthyologist Munro in 1964 .

features

Depending on the water and environmental conditions as well as the food, the aquamarine rainbow fish can show different colors from cobalt blue to steel blue and aquamarine to shades of turquoise. The upper half of the body is most intensely colored. The males are more colored, taller and taller than the females. The fish are about ten centimeters long, rarely up to twelve centimeters.

Occurrence

The Aquamarine Rainbow fish is endemic in Kutubu Lake of and the Soro River, the only outlet of the lake, in the Kikori River system drains. The fish live in groups close to the surface in the crystal clear lake up to 70 meters deep at temperatures of 21 to 25 ° C and pH values ​​of 8.5 to 9.0.

Others

Aquamarine rainbow fish are perpetual spawners. This means that they spawn not only in a special season, such as other fish in the rainy season, but all year round if the conditions are favorable.

Melanotaenia lacustris is an omnivore. All types of live, frozen, flake or green fodder are taken in the aquarium. A varied diet is important.

In the morning, when either the light goes on in the aquarium or it is bright enough due to the daylight falling in, the males begin courtship. Her forehead turns bright yellow. As Ablaichsubstrat they prefer delicate plants near the ground, in the aquarium as Java moss .

literature

  • Heinrich winner: rainbow fish. The genus Melanotaenia . Natur und Tier-Verlag, 2010, ISBN 978-3-86659-154-7
  • Ian SR Munro: Additions to the fish fauna of New Guinea . In: Papua New Guinea Agricultural Journal . 16, No. 4, 1964, pp. 141-186. (First scientific description)

Web links

Commons : Aquamarine Rainbow Fish ( Melanotaenia lacustris )  - Collection of Images, Videos, and Audio Files