dcsimg

Diagnostic Description

provided by Fishbase
Diagnosis: micro-gillrakers absent (Ref. 52307, 53405). Small-sized specimens; dorsal fin with 15-17 spines and 11-13 soft rays (mean 17.12); anal fin with 3 spines and 8-9 soft rays; narrow scaly sheet at the base of anal fin; 7-9 lower gill-rakers (Ref. 53405).Description: body ovoid (Ref. 52307). Head rounded (Ref. 53405) and short, frontal profile strongly curved (Ref. 52307). Mouth small (Ref. 52307, 53405), subterminal (Ref. 53405). Inner jaw teeth tricuspid, outer jaw teeth bicuspid and spatulate, posterior pharyngeal teeth bicuspid but posterior and median teeth not broadened; lower pharyngeal bone as long as broad, toothed part longer than or as long as anterior part; scales cycloid (Ref. 53405). Caudal fin slightly rounded; some adults with somewhat elongated caudal fin rays, making the outer edge appear a bit fringed (Ref. 52307).Coloration: in life: ground color dark brown to blackish, sometimes with some narrow, yellowish cross bars on sides and head, 1st just behind eye, 2nd from occiput through hind angle of gill cover to before pectoral-fin base, 3rd just behind pelvic-fin bases, 4th midway between 3rd bar and anus, 5th at level of anus, 6th at level of third anal-fin spine, 7th near hind part of anal fin, and 8th on caudal peduncle; head dark brown, with lighter or yellowish narrow band between eyes and horizontal band on snout, one from eye to upper lip, and broader one on anterior part of cheek below eye; yellowish bands may disappear suddenly, possibly controlled by nervous system; hind angle of gill cover blackish, with small yellow spot at centre; lower lip pale, unlike upper lip and chin which are darker; pectoral fins yellowish to transparent; pelvic fins brownish-black, lighter anteriorly, especially in juveniles; dorsal, anal and caudal fins brownish-black, darker at base; spinous part of dorsal fin with some lighter spots; upper margin of dorsal and caudal fins red in adults (Ref. 53405). Pattern of light and dark bars especially marked in juveniles, less bold in adults; tilapia-spot absent (Ref. 52307).
license
cc-by-nc
copyright
FishBase
Recorder
Tobias Musschoot
original
visit source
partner site
Fishbase

Life Cycle

provided by Fishbase
Female lays around 200 eggs inside the male's cave. Both parents care for their young.
license
cc-by-nc
copyright
FishBase
Recorder
Tom Froese
original
visit source
partner site
Fishbase

Morphology

provided by Fishbase
Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 11 - 13; Analspines: 3; Analsoft rays: 8 - 9
license
cc-by-nc
copyright
FishBase
Recorder
Tobias Musschoot
original
visit source
partner site
Fishbase

Biology

provided by Fishbase
Mainly feeds on plants, preferring algae; pair-bonding, open substrate spawner with both parents guarding the brood (Ref. 52307).
license
cc-by-nc
copyright
FishBase
Recorder
Pascualita Sa-a
original
visit source
partner site
Fishbase

Importance

provided by Fishbase
fisheries:
license
cc-by-nc
copyright
FishBase
Recorder
Pascualita Sa-a
original
visit source
partner site
Fishbase

Coelotilapia joka ( German )

provided by wikipedia DE

Coelotilapia joka (Syn.: Tilapia joka) ist eine afrikanische Buntbarschart, die in Unterläufen von Flüssen Sierra Leones und des westlichen Liberia vorkommt.

Merkmale

Coelotilapia joka wird maximal 9,6 cm lang, hat eine typische Buntbarschgestalt und ein abgerundetes Kopfprofil. Auf den Körperseiten finden sich 7 bis 8 dunkle Bänder, die breiter sind als die hellen Zwischenräume. Ein Tilapiafleck auf der Rückenflosse fehlt. Die Bauchflossen sind zugespitzt. Die Zähne der äußeren Reihen in beiden Kiefern sind zweispitzig, die Zähne der inneren Reihen kleiner und dreispitzig. Die unteren Pharyngealia sind ebenso lang wie breit und mit der fünften Ceratobranchiale (unterer Schlundkiefer) zusammengewachsen. Der zahnlose vordere Abschnitt der Pharyngealia ist kürzer oder genauso lang wie der bezahnte Bereich. Die Schlundzähne sind zwei- und dreispitzig. Auf dem ersten Kiemenbogen sitzen 8 bis 11 Kiemenreusenstrahlen. Mikro-Kiemenrechen fehlen. Die Schuppen sind cycloid.

Gefährdung

In der Roten Liste der IUCN wird der Status der Art als gefährdet (Vulnerable) angegeben.

Literatur

  • Andreas R. Dunz, Ulrich K. Schliewen: Molecular phylogeny and revised classification of the haplotilapiine cichlid fishes formerly referred to as “Tilapia”. Molecular Phylogenetics and Evolution, Doi:10.1016/j.ympev.2013.03.015
  • Andreas R. Dunz: Revision of the substrate brooding “Tilapia” (Tilapia Smith, 1840 and related taxa), (Teleostei: Perciformes: Cichlidae). Dissertation zur Erlangung des Doktorgrades der Fakultät für Biologie der Ludwig-Maximilians-Universität München, München, 2012, PDF

Weblinks

 title=
license
cc-by-sa-3.0
copyright
Autoren und Herausgeber von Wikipedia
original
visit source
partner site
wikipedia DE

Coelotilapia joka: Brief Summary ( German )

provided by wikipedia DE

Coelotilapia joka (Syn.: Tilapia joka) ist eine afrikanische Buntbarschart, die in Unterläufen von Flüssen Sierra Leones und des westlichen Liberia vorkommt.

license
cc-by-sa-3.0
copyright
Autoren und Herausgeber von Wikipedia
original
visit source
partner site
wikipedia DE

Coelotilapia joka

provided by wikipedia EN

Coelotilapia joka is a vulnerable species of cichlid fish from rivers in Sierra Leone and Liberia in West Africa.[3] This relatively small tilapia formerly was included in the genus Tilapia, but in 2013 it was moved to its own genus Coelotilapia and tribe Coelotilapini.[2]

It is an oval shaped fish with a black body coloring. Eight to nine yellow, transverse stripes mark the body. The head has small, irregular yellow lines that extend from the eye to the snout, forehead, and mouth. It is one of the few tilapia species that regularly are kept in aquariums.

Characteristics

Coelotilapia joka can reach up to about 10 cm (4 in) in total length.[3] It originates from West Africa; found near the banks of clear rivers and tributaries of the lower parts of the Moa and Moro Rivers, southern Sierra Leone and northern Liberia and lives from the middle to the bottom of the river. Males have an elongated anal and dorsal fins and, with age, have white tips on their fins. In the wild, its diet is mainly herbivorous with some live foods taken.

Pairs form monogamous bonds and later patriarch/matriarch families.

Special interest for aquarists

Coelotilapia joka is a peaceful, calm species that does well when combined with fish that have a similar temperament and will do well if in a properly sized and maintained tank. The species requires frequent partial water changes and a pH from 6-7.5 at 73–77 °F (23–25 °C). While the species will breed in captivity, successful captive breeding is not common.

References

  1. ^ Olaosebikan, B.D. (2020). "Coelotilapia joka". IUCN Red List of Threatened Species. 2020: e.T182524A58331019. doi:10.2305/IUCN.UK.2020-2.RLTS.T182524A58331019.en. Retrieved 20 November 2021.
  2. ^ a b Dunz, A.R. & Schliewen, U.K. (2013): Molecular phylogeny and revised classification of the haplotilapiine cichlid fishes formerly referred to as “Tilapia”. Molecular Phylogenetics and Evolution, Available online 29 March 2013 doi: 10.1016/j.ympev.2013.03.015
  3. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2019). "Coelotilapia joka" in FishBase. November 2019 version.
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Coelotilapia joka: Brief Summary

provided by wikipedia EN

Coelotilapia joka is a vulnerable species of cichlid fish from rivers in Sierra Leone and Liberia in West Africa. This relatively small tilapia formerly was included in the genus Tilapia, but in 2013 it was moved to its own genus Coelotilapia and tribe Coelotilapini.

It is an oval shaped fish with a black body coloring. Eight to nine yellow, transverse stripes mark the body. The head has small, irregular yellow lines that extend from the eye to the snout, forehead, and mouth. It is one of the few tilapia species that regularly are kept in aquariums.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Tilapia joka ( Spanish; Castilian )

provided by wikipedia ES

Tilapia joka es una especie de peces de la familia Cichlidae en el orden de los Perciformes.

Morfología

Los machos pueden llegar alcanzar los 9,6 cm de longitud total.[2]

Distribución geográfica

Se encuentran en África: Sierra Leona y oeste de Liberia.

Referencias

  1. Bousso, T. & Lalèyè, P. (2006). «Tilapia joka». Lista Roja de especies amenazadas de la UICN 2010.4 (en inglés). ISSN 2307-8235. Consultado el 23 de noviembre de 2010.
  2. FishBase (en inglés)

Bibliografía

  • Eschmeyer, William N., ed. 1998. Catalog of Fishes. Special Publication of the Center for Biodiversity Research and Information, núm. 1, vol. 1-3. California Academy of Sciences. San Francisco, California, Estados Unidos. 2905. ISBN 0-940228-47-5.
  • Fenner, Robert M.: The Conscientious Marine Aquarist. Neptune City, Nueva Jersey, Estados Unidos: T.F.H. Publications, 2001.
  • Helfman, G., B. Collette y D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts, Estados Unidos, 1997.
  • Hoese, D.F. 1986. A M.M. Smith y P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlín, Alemania.
  • Maugé, L.A. 1986. A J. Daget, J.-P. Gosse y D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Bruselas; MRAC, Tervuren, Flandes; y ORSTOM, París, Francia. Vol. 2.
  • Moyle, P. y J. Cech.: Fishes: An Introduction to Ichthyology, 4a. edición, Upper Saddle River, Nueva Jersey, Estados Unidos: Prentice-Hall. Año 2000.
  • Nelson, J.: Fishes of the World, 3a. edición. Nueva York, Estados Unidos: John Wiley and Sons. Año 1994.
  • Wheeler, A.: The World Encyclopedia of Fishes, 2a. edición, Londres: Macdonald. Año 1985.

 title=
license
cc-by-sa-3.0
copyright
Autores y editores de Wikipedia
original
visit source
partner site
wikipedia ES

Tilapia joka: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

Tilapia joka es una especie de peces de la familia Cichlidae en el orden de los Perciformes.

license
cc-by-sa-3.0
copyright
Autores y editores de Wikipedia
original
visit source
partner site
wikipedia ES

Tilapia joka ( Basque )

provided by wikipedia EU

Tilapia joka Tilapia generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cichlidae familian.

Banaketa

Erreferentziak

  1. (Ingelesez) FishBase

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
license
cc-by-sa-3.0
copyright
Wikipediako egileak eta editoreak
original
visit source
partner site
wikipedia EU

Tilapia joka: Brief Summary ( Basque )

provided by wikipedia EU

Tilapia joka Tilapia generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cichlidae familian.

license
cc-by-sa-3.0
copyright
Wikipediako egileak eta editoreak
original
visit source
partner site
wikipedia EU