Red rainbowfish

The red rainbowfish or salmon-red rainbowfish (Glossolepis incisus) is a species of rainbowfish from Lake Sentani in Irian Jaya, Indonesia. Belonging to the family Melanotaeniidae, in the subfamily Melanotaeniinae, the Australian rainbowfishes.[1] It is threatened in its native range, but easily bred in captivity and common in the aquarium trade.[1]

Red rainbowfish
male
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Atheriniformes
Family: Melanotaeniidae
Genus: Glossolepis
Species:
G. incisus
Binomial name
Glossolepis incisus

Description
Female red rainbowfish

The males are bright red and with age grow a high back. The females are olive brown in colour. Their colours change depending on their mood, but subordinate males do not display bright colours. They grow up to 15 cm (5.9 in) in size, but typically attain a smaller size of around 12 cm (4.7 in).[3][4]

Breeding

They are an egg scattering species and they scatter their eggs among clumps of vegetation. The eggs take about 7 days to hatch.[4]

Nutrition

Glossolepis incisus is an omnivore and in captivity it will eat most common commercial aquarium foods readily. It may be slightly more carnivorous than most of the Australian rainbowfish.[4]

Conservation status

The IUCN Red List classifies Glossolepis incisus as endangered.[1] This is because of the rapidly increasing human population around this fish's only natural habitat and introduced species such as tilapia.[4]

Distribution

This species is endemic to Lake Sentani and its tributaries near Jayapura in Papua, Indonesia[1][4] (a range it shares with the related Chilatherina sentaniensis).

Taxonomy

Glossolepis incisus is the type species of the genus Glossolepis[5] and was described by Max C.W. Weber in 1907.[6]

References
  1. Allen, G.R. & Kadarusman. (2020). "Glossolepis incisus". IUCN Red List of Threatened Species. 2020: e.T9268A147681075.
  2. Weber, Max (1908). "Süsswasserfische von Neu-Guinea, ein Beitrag zur Frage nach dem früheren Zusammenhang von Neu-Guinea und Australien". In Wichmann, Arthur (ed.). Zoologie. Nova Guinea. 5 (2). Leiden: E. J. Brill. pp. 241–242. Pl. XI, Fig. 7a, b, c. (Desc.).
  3. Froese, Rainer and Pauly, Daniel, eds. (2019). "Golssolepis incisus" in FishBase. April 2019 version.
  4. Red Rainbowfish Fact Sheet
  5. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Glossolepis incisus". Catalog of Fishes. California Academy of Sciences. Retrieved 30 June 2019.
  6. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Glossolepis incisus". Catalog of Fishes. California Academy of Sciences. Retrieved 30 June 2019.


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