Ctenochromis horei

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Ctenochromis horei
Ctenochromis horei.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Genus: Ctenochromis
Species:
C. horei
Binomial name
Ctenochromis horei
(Günther, 1894)
Synonyms
  • Chromis horeiGünther, 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.

Contents

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 Nua River, as well as in the outflowing Lukuga River as far as the Kisimba-Kilia rapids. [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 Edward Coode Hore (1848-1912], who was the collector of the type. [6]

Related Research Articles

Nanochromis transvestitus is a sexually dimorphic cichlid endemic to Lake Mai-Ndombe in the Democratic Republic of the Congo where they live at a depth of around 1 metre (3.3 ft). It feeds on small benthic invertebrates. This species reaches a length of 3.4 centimetres (1.3 in) SL. Unusually for cichlids, it is the female, not the male, that is the most colourful. The female has a vertical black and white banding on her anal and caudual fins, with a bright red abdomen. The male, by contrast, is grayish in colour. Like many cichlids, the male does, however, have longer anal and caudal fins. The fish are egg layers and make a nest in the substrate in which to lay their eggs. This species is particularly threatened by the practice of using mosquito netting to catch fish out of the lake as material with holes that small catches every species of fish in the lake regardless of size. The specific name is a derived from the Latin trans meaning "cross" or "over" and vestitus meaning "clothed", a reference to the reversal of the normal sexual dimorphism in that this species has drabber males and more colourful females.

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<i>Lepidiolamprologus cunningtoni</i> Species of fish

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<i>Limnotilapia dardennii</i> Species of fish

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<i>Lepidiolamprologus boulengeri</i> Species of fish

Lepidiolamprologus boulengeri is a species of cichlid endemic to Lake Tanganyika where it is known from the Tanzanian coast in the northern part of the lake. Pairs of this species live together in their territory and the female lives in snail shells in a pit that they have dug in the sand. This species can reach a length of 6.2 centimetres (2.4 in) TL. This species can also be found in the aquarium trade.

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<i>Pseudotropheus demasoni</i> Species of fish

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<span class="mw-page-title-main">Electric blue hap</span> Species of fish

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<i>Tilapia sparrmanii</i> Species of fish

Tilapia sparrmanii, the banded tilapia, or vlei kurper, is a widespread and adaptable cichlid fish that is found in warmer freshwater habitats of southern Africa. They prefer water with ample plant cover, and occur naturally as far north as DR Congo and Tanzania. They have been introduced locally in the northern hemisphere. Younger banded tilapia feed on crustaceans and insect larvae, while the adults feed on terrestrial and aquatic plants and other debris. They undertake local migrations and may shoal before and during spawning time. They guard their own eggs, and although they may move eggs or fry in the mouth, they are not known to be actual mouthbrooders like several other tilapia species. This species can reach a length of 23.5 centimetres (9.3 in) TL and is an important foodfish.

References

  1. 1 2 3 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. 1 2 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. 1 2 Froese, Rainer; 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.