Ctenochromis horei

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Ctenochromis horei
Ctenochromis horei.jpg

Least Concern (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Genus: Ctenochromis
Species:
C. horei
Binomial name
Ctenochromis horei
(Günther, 1894)
Synonyms
  • Chromis horei Günther, 1894
  • Haplochromis horei (Günther, 1894)
  • Tilapia horii (Günther, 1894)
  • Tilapia rubropunctata Boulenger, 1899

Ctenochromis horei is a species of haplochromine cichlid which is found in East Africa.

Description[]

Large individuals, which are classified as being greater than 60 millimetres (2.4 in) long, have black spots on their heads. Males, while foraging, show a distinct orange spot that is located on the anal fin to females as a courtship display.[2]

The males attain lengths of 18–20 centimetres (7.1–7.9 in) and the females 12–15 centimetres (4.7–5.9 in).[3]

Distribution[]

Ctenochromis horei is found in the basin of Lake Tanganyika in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. It is found in Lake Tanganyika itself and in its tributary rivers such as the Ruzizi River and the , as well as in the outflowing Lukuga River as far as the .[4]

Habitat and ecology[]

Ctenochromis horei is ubiquitous within the Lake Tanganyika basin where it occurs over both rock and sand substrates, but shows a preference for habitats with a soft substrate on which grows a sward of aquatic grasses. This is a species of shallow water species along the lakeshore and in the lower reaches of the tributary rivers. It is omnivourous, but the adults are mainly piscivorous.[1] The females are mouthbrooders, brooding both eggs ad fry in their mouth[4] Dominant males have been found to defend a spawning female from other males in the area.[2] The dominant males have a harem of females but other males will sneakily mate with the females when they can.[5]

Threats[]

Ctenochromis horei is threatened by increases in water turbidity and siltation in shallows caused by agriculture and forestry in the Lake Tanganyika drainage basin, it is also threatened by over-fishing using beach seine nets.[1]

Name[]

The specific name honours the British explorer and missionary Captain (1848-1912], who was the collector of the type.[6]

References[]

  1. ^ a b c Ntakimazi, G. (2006). "Ctenochromis horei". IUCN Red List of Threatened Species. 2006: e.T60482A12361985. doi:10.2305/IUCN.UK.2006.RLTS.T60482A12361985.en. Retrieved 14 November 2021.
  2. ^ a b Ochi, Haruki (26 May 1993). "Mate monopolization by a dominant male in a multi-male social group of a mouthbrooding cichlid, Ctenochromis horei". Japanese Journal of Ichthyology. 40 (2): 209–218.
  3. ^ "Fish Of The Month - Ctenochromis Horei". Perth Cichlid Society. Retrieved 4 December 2018.
  4. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2018). "Ctenochromis horei" in FishBase. June 2018 version.
  5. ^ George Barlow (2008). The Cichlid Fishes: Nature's Grand Experiment In Evolution. Hachette UK. ISBN 978-0786743896.
  6. ^ Scharpf, Christopher; Lazara, Kenneth J. (22 July 2018). "Order CICHLIFORMES: Family CICHLIDAE: Subfamily PSEUDOCRENILABRINAE (a-g)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 4 December 2018.


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