Oreochromis rukwaensis (Hilgendorf & Pappenheim 1903)條目

Morphology ( 英語 )

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Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 11 - 13; Analspines: 3; Analsoft rays: 10 - 11; Vertebrae: 30

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Recorder: Crispina B. Binohlan

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Life Cycle ( 英語 )

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A maternal mouthbrooder (Ref. 118638). Males construct territories in shallow water; where there was ample space they were similar in structure and grouping to those of Oreochromis variabilis, each territory consisting of a central raised mating platform in the middle of a large circular depression; males occupy these territories at sunrise, when water temperature was 12Â°C and they left for deeper water in the late afternoon when the temperature rose to 25Â°C (Ref. 2). It exhibits pseudo-spawning and then true spawning follows (Ref. 2).

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Diagnostic Description ( 英語 )

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Diagnosis: Typical tilapiine cichlid, relatively deep bodied, with rather a small head (Ref. 118638). Other distinguishing characters are: caudal fin free of scales except basally; vertebrae 30; scales in lateral line series 30-32; dorsal spines XV-XVII; soft rays usually 11-13; outer teeth bicuspid, in mature fishes occasionally with a few tricuspids; lower gill-rakers 20-22; interorbital region in adults 34.5-40.0% length of head (Ref. 2). Ripe males have a dark body and fins, almost black, with bright red/orange margins on the dorsal and caudal fins; vertical barring can be noticeable in freshly caught specimens; head region in ripe males has a bluish sheen; ripe males have yellow-orange tassels; females and subadult males plain silver/grey with 6-7 post-opercular vertical stripes and bluish snout present in freshly caught specimens (Ref. 118638).Description: The teeth are in 4-6 series in specimens over 100 mm standard length, 3-4 below this size; with slender shafts and broader, curved crowns; those of outermost row bicuspid except that three mature fishes have a few tricuspids among them; inner rows tricuspid (Ref. 2). Scales on cheek in 2 rows, rarely 2 or 3 scales of a third row present; 4 or 4.5 between origin of dorsal and lateral line (Ref. 2). Caudal fin very slightly emarginate in young, truncate in adults (Ref. 2).Colouration: Preserved adults are uniformly pale, without markings on the body; the vertical fins and the pelvics are either likewise pale or may be dusky between the rays; the young are also pale, but some show 6-8 grey vertical bands on the flanks and the soft dorsal may be marked with dark oblique bands or with clear ovals on a grey ground; in this pattern the tilapia-mark may be indicated by a darker grey, but most are without even this vestige of a tilapia-mark (Ref. 2).

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Trophic Strategy ( 英語 )

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This species is found both in large lakes and small rivers (Ref. 4967, 118638).

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Biology ( 英語 )

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This species is found both in large lakes and small rivers (Ref. 4967, 118638). A maternal mouthbrooder (Ref. 118638). Males construct territories in shallow water; where there was ample space they were similar in structure and grouping to those of Oreochromis variabilis, each territory consisting of a central raised mating platform in the middle of a large circular depression (Ref. 2). It is a major component of the fisheries catch in Lake Rukwa and the Mtera Dam (Ref. 118638). Strong aquaculture potential given broad habitat requirements (Ref. 118638). IUCN conservation status is stated as vulnerable D2, declining population trend (Ref. 118638).

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Recorder: Crispina B. Binohlan

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Importance ( 英語 )

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fisheries: commercial

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Recorder: Crispina B. Binohlan

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Oreochromis rukwaensis ( 加泰隆語 )

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Oreochromis rukwaensis és una espècie de peix de la família dels cíclids i de l'ordre dels perciformes.

Morfologia

Els mascles poden assolir els 33 cm de longitud total.^[2]

Distribució geogràfica

Es troba a Àfrica: llac Rukwa (Tanzània).^[2]

Referències

↑ BioLib
↑ ^2,0 ^2,1 FishBase (anglès)

Bibliografia

Axelrod, H. R., 1993. The most complete colored lexicon of cichlids. T.F.H. Publications, Neptune City (Estats Units).
Helfman, G., B. Collette i D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts (Estats Units), 1997.
Moyle, P. i J. Cech.: Fishes: An Introduction to Ichthyology, 4a edició, Upper Saddle River, Nova Jersey, Estats Units: Prentice-Hall (2000).
Nelson, J.: Fishes of the World, 3a edició. Nova York, Estats Units: John Wiley and Sons. Any 1994.
Römer U.: Cichliden Atlas, Bd. 1. Melle. 1311 p. Any 1998.
Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., Londres (Regne Unit).
Wheeler, A.: The World Encyclopedia of Fishes, 2a edició, Londres: Macdonald. Any 1985.

Enllaços externs

ITIS

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Oreochromis rukwaensis: Brief Summary ( 加泰隆語 )

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Oreochromis rukwaensis és una espècie de peix de la família dels cíclids i de l'ordre dels perciformes.

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Lake Rukwa tilapia ( 英語 )

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The Lake Rukwa tilapia (Oreochromis rukwaensis) is a species of cichlid endemic to the Lake Rukwa catchment in Tanzania. This species can reach a length of 33 centimetres (13 in) SL. This species is important to local commercial fisheries.^[2]

References

^ Bayona, J.D.R.; Hanssens, M. (2006). "Oreochromis rukwaensis". IUCN Red List of Threatened Species. 2006: e.T60631A12389114. doi:10.2305/IUCN.UK.2006.RLTS.T60631A12389114.en. Retrieved 14 November 2021.
^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Oreochromis rukwaensis" in FishBase. April 2013 version.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Lake_Rukwa_tilapia&oldid=1117055897"

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Lake Rukwa tilapia: Brief Summary ( 英語 )

由wikipedia EN提供

The Lake Rukwa tilapia (Oreochromis rukwaensis) is a species of cichlid endemic to the Lake Rukwa catchment in Tanzania. This species can reach a length of 33 centimetres (13 in) SL. This species is important to local commercial fisheries.

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Oreochromis rukwaensis ( 西班牙、卡斯蒂利亞西班牙語 )

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Oreochromis rukwaensis es una especie de peces de la familia Cichlidae en el orden de los Perciformes.

Índice

1 Morfología
2 Distribución geográfica
3 Referencias
4 Bibliografía
5 Enlaces externos

Morfología

Los machos pueden llegar alcanzar los 33 cm de longitud total.^[2]

Distribución geográfica

Se encuentran en África: lago Rukwa (Tanzania).

Referencias

↑ Bayona, J.D.R. & Hanssens, M. (2006). «Oreochromis rukwaensis». Lista Roja de especies amenazadas de la UICN 2010.3 (en inglés). ISSN 2307-8235. Consultado el Septiembre de 2010.
↑ 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.

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Oreochromis rukwaensis: Brief Summary ( 西班牙、卡斯蒂利亞西班牙語 )

由wikipedia ES提供

Oreochromis rukwaensis es una especie de peces de la familia Cichlidae en el orden de los Perciformes.

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Oreochromis rukwaensis ( 巴斯克語 )

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Oreochromis rukwaensis Oreochromis generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cichlidae familian.

Eduki-taula

1 Banaketa
2 Erreferentziak
3 Kanpo loturak
4 Ikus, gainera

Banaketa

Erreferentziak

↑ (Ingelesez) FishBase

FihsBase.org

Ikus, gainera

Oreochromis
Cichlidae

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Oreochromis rukwaensis: Brief Summary ( 巴斯克語 )

由wikipedia EU提供

Oreochromis rukwaensis Oreochromis generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cichlidae familian.

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Oreochromis rukwaensis ( 法語 )

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Oreochromis rukwaensis est une espèce de poisson de la famille des cichlidae et de l'ordre des perciformes. Cette espèce est endémique de l'Afrique. Il fait partie des nombreuses espèces regroupées sous le nom de Tilapia.

Répartition géographique

Cette espèce est endémique de l'Afrique. Cette espèce ce rencontre uniquement dans le lac Rukwa en Tanzanie^[2].

Notes et références

↑ http://www.fishbase.org/Nomenclature/SynonymsList.php?ID=2040&SynCode=24242&GenusName=Oreochromis&SpeciesName=rukwaensis
↑ « Oreochromis rukwaensis summary page », sur FishBase (consulté le 8 août 2020).

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Oreochromis rukwaensis: Brief Summary ( 法語 )

由wikipedia FR提供

Oreochromis rukwaensis est une espèce de poisson de la famille des cichlidae et de l'ordre des perciformes. Cette espèce est endémique de l'Afrique. Il fait partie des nombreuses espèces regroupées sous le nom de Tilapia.

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Oreochromis rukwaensis ( 荷蘭、佛萊明語 )

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Vissen

Oreochromis rukwaensis is een straalvinnige vissensoort uit de familie van de cichliden (Cichlidae).^[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1903 door Hilgendorf & Pappenheim.

Bronnen, noten en/of referenties

↑ (en) Oreochromis rukwaensis. FishBase. Ed. Ranier Froese and Daniel Pauly. 02 2013 version. N.p.: FishBase, 2013.

Geplaatst op:
27-02-2013

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Oreochromis rukwaensis ( 葡萄牙語 )

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Oreochromis rukwaensis é uma espécie de peixe da família Cichlidae.

É endémica da Tanzânia.

Os seus habitats naturais são: rios e lagos de água doce.

Referências

(em inglês) Bayona, J.D.R. & Hanssens, M. 2005. Oreochromis rukwaensis. 2006 IUCN Red List of Threatened Species. Dados de 4 de Agosto de 2007.

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Oreochromis rukwaensis: Brief Summary ( 葡萄牙語 )

由wikipedia PT提供

Oreochromis rukwaensis é uma espécie de peixe da família Cichlidae.

É endémica da Tanzânia.

Os seus habitats naturais são: rios e lagos de água doce.

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Oreochromis rukwaensis ( 越南語 )

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Oreochromis rukwaensis là một loài cá thuộc họ Cichlidae. Nó là loài đặc hữu của hồ Rukwa ở Tanzania. Các môi trường sống tự nhiên của chúng là sông và hồ nước ngọt.

Chú thích

^ Bayona, J.D.R. & Hanssens, M. 2006. Oreochromis rukwaensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on ngày 10 tháng 5 năm 2013.
^ Oreochromis rukwaensis (TSN 648853) tại Hệ thống Thông tin Phân loại Tích hợp (ITIS).

Tham khảo

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Oreochromis rukwaensis: Brief Summary ( 越南語 )

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Oreochromis rukwaensis là một loài cá thuộc họ Cichlidae. Nó là loài đặc hữu của hồ Rukwa ở Tanzania. Các môi trường sống tự nhiên của chúng là sông và hồ nước ngọt.

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