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Trophic Strategy ( anglais )

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Swamp-dweller (Ref. 6770). Juveniles are coastal and gregarious while adults wander over the sandy bottoms by themselves (Ref. 6770), in shallow inshore areas of the lake, in lagoons and river mouths (Ref. 4967). Feeds mainly on crustaceans and insects, along with some plants (Ref. 52307), but also a mollusc eater (Ref. 10616, Ref. 6316).
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Morphology ( anglais )

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Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 13 - 15; Analspines: 3; Analsoft rays: 7 - 9; Vertebrae: 30
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Diagnostic Description ( anglais )

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Diagnosis: high lateral line count (54-59 scales)(Ref. 52346). Scales small (Ref. 53244).Description: body deep and narrow, laterally compressed, tappering off strongly toward caudal peduncle (Ref. 6770). Relatively slender, although adults sometimes with very massive heads (Ref. 52307, 52346). Adult predorsal profile rises smoothly in a broad sweep to origin of dorsal fin although line of profile is often somewhat interrupted by a thickening in interorbital region; deepest body depth lies at or a little in front of dorsal fin origin; lower jaw usually inclined at an angle of about 10° to horizontal when mouth is closed; lower pharyngeal jaw extremely robust (Ref. 52346). Pharyngeal apophysis of Tylochromis type (Ref. 53524). Large crushing pharyngeal teeth (Ref. 10616). Snout rounded (Ref. 52307). 4-5 series of scales on cheek (Ref. 2989). Larger scales on operculum (Ref. 1879, 45627). Hypobranchial with 2 simple elongate rakers, following 4-5 ceratobranchial rakers usually widely spaced and non-overlapping, and remaining lower limb rakers more closely spaced and overlapping; epibranchial rakers rather stout, elongate and closely packed; vertebral apophysis well-developed and robust, borne on third vertebral centrum and usually lacking a major contribution from fourth centrum, although in smaller individuals fourth centrum may contribute a small buttressing component; 54-59 lateral line scales (Ref. 52346). 25-33 scales in upper lateral line, 41-48 scales in lower lateral line; 6-8 scales between dorsal fin and upper lateral line; 16-19 scales between lower lateral line and anal fin (Ref. 45485). Upper branch of lateral line terminates far in advance of end of dorsal fin, often as far anterior as level of last dorsal spine; terminal canal bearing scales do not descend scale rows; 3 rows of non-pored scales between upper and lower lateral line; dorsal and ventral branches of lateral line on caudal fin extend almost to fin periphery while median branch is less developed and often reaches only as far as about halfway along fin; dorsal fin spines increase gradually in length to fifth and are then more or less equal in length to last 4-5 which are often slightly shorter than preceding ones; anal fin rounded (Ref. 52346). Anal fin spines very strong (Ref. 2989). Pectoral fins long and even in juveniles extending to level of middle of soft anal fin; first branched pelvic ray filamentous and often produced beyond soft anal fin; caudal peduncle relatively long and thin (Ref. 52346). Caudal fin subtruncate (slightly forked) (Ref. 52307), strongly emarginate, and rather finely scaled even in large individuals; caudal scaling in juveniles restricted to dorsal and ventral fields of fin (Ref. 52346).Coloration: greyish or brownish above, white below; with or without 5-7 inconspicious vertical bars; pale yellow or green longitudinal striations between scale rows; mature males have a caudal fin striated in typical manner and a soft anal fin with 3-4 large non-occelate maculae; females and juveniles apparently without anal maculation, but with pale grey-brown fin membranes; nape stripe dark and prominent, but usually not in contact with faint and diffuse opercular blotch; a red vertical stripe on gill cover may be present, possibly restricted to mature males (Ref. 52346). Angle of jaws, origin of paired fins and tips of anterior dorsal fin spines reddish; a number of dark brown dots on dorsal fin (Ref. 52307, 52346). Juveniles less than 20cm do not display any of the colors of the adults (Ref. 6770). Juveniles less than ca. 12cm SL exhibit typical juvenile barring, with distinct dark vertical stripes interdigitated by pale and shorter stripes (Ref. 52346).
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Biology ( anglais )

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Swamp-dweller (Ref. 6770). Juveniles are coastal and gregarious while adults wander over the sandy bottoms by themselves (Ref. 6770), in shallow inshore areas of the lake, in lagoons and river mouths (Ref. 4967). Feeds mainly on crustaceans and insects, along with some plants (Ref. 52307), but also a mollusc eater (Ref. 6316, 10616). Maternal mouthbrooder (Ref. 1872, 52307) that does not pair bond (Ref. 52307). Females have been observed with about 100 eggs of a diameter of 6 mm (Ref. 52307).
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Importance ( anglais )

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fisheries: ; aquarium: commercial
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Tylochromis polylepis ( catalan ; valencien )

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Tylochromis polylepis és una espècie de peix de la família dels cíclids i de l'ordre dels perciformes.

Morfologia

Els mascles poden assolir els 43,5 cm de longitud total.[3]

Distribució geogràfica

Es troba a Àfrica: llac Tanganyika.[3]

Referències

  1. Regan, C. T. 1920. The classification of the fishes of the family Cichlidae.--I. The Tanganyika genera. Ann. Mag. Nat. Hist. (Ser. 9) v. 5 (núm. 25): 33-53.
  2. BioLib (anglès)
  3. 3,0 3,1 FishBase (anglès)

Bibliografia

  • Axelrod, H. R., 1993. The most complete colored lexicon of cichlids. T.F.H. Publications, Neptune City (Estats Units).
  • Boulenger, G. A. 1900. Matériaux pour la faune du Congo. Poissons nouveaux du Congo. Sixième Partie. Mormyres, Characins, Cyprins, Silures, Acanthoptérygiens, Dipneustes. Ann. Mus. Congo (Ser. Zool.) v. 1 (fasc. 5): 129-164, Pls. 48-56.
  • Goldstein, R.J.: Cichlids of the world.T.F.H. Publications Inc. Neptune City, Nova Jersey, Estats Units. Any 1988.
  • 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. Any 2000.
  • Nelson, J.: Fishes of the World, 3a edició. Nova York, Estats Units: John Wiley and Sons. Any 1994.
  • Regan, C. T. 1920. A revision of the African cichlid fishes of the genus Tylochromis. Ann. Mag. Nat. Hist. (Ser. 9) v. 5 (núm. 26): 163-169.
  • Römer U.: Cichliden Atlas, Bd. 1. Melle. 1311 p. Any 1998.
  • Stiassny, M. L. J. 1989. A taxonomic revision of the African genus Tylochromis (Labroidei, Cichlidae); with notes on the anatomy and relationships of the group. Ann. Mus. R. Afr. Cent. Ser. 8 Zool. Núm. 258: 1-161.
  • Wheeler, A.: The World Encyclopedia of Fishes, 2a edició, Londres: Macdonald. Any 1985.


Enllaços externs

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Tylochromis polylepis: Brief Summary ( catalan ; valencien )

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Tylochromis polylepis és una espècie de peix de la família dels cíclids i de l'ordre dels perciformes.

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Tylochromis polylepis ( allemand )

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Tylochromis polylepis (Syn.: Pelmatochromis polylepis) ist eine afrikanische Buntbarschart, die im ostafrikanischen Tanganjikasee und im Lukuga, dem Abfluss des Tanganjikasees zum Kongo vorkommt.

Merkmale

Es ist ein relativ großer Buntbarsch, der eine Länge von bis zu 43,5 cm erreichen kann. Er ist hochrückig und seitlich abgeflacht. Der Kopf ist groß und hoch, die größte Körperhöhe liegt direkt hinter dem Kopf am Beginn der Rückenflosse. Zum Schwanzstiel hin verjüngt sich der Körper deutlich. Die Schuppen der Fische sind klein, die Anzahl der Seitenlinienschuppen sind daher hoch (polylepis = altgriechisch πολύς polys, deutsch ‚viel‘ + λεπίς lepís, deutsch ‚Schuppe‘). Die Schwanzflosse ist gegabelt.[1]

Tylochromis polylepis ist unscheinbar graubraun gefärbt mit fünf oder sechs dunklen Querbalken auf den Körperseiten. In der Rückenflosse finden sich einige dunkle Flecke. Die Basen von Brust- und Bauchflossen, die Spitzen der vorderen Flossenstrahlen der Rückenflosser und die Mundwinkel sind rötlich.[2]

Lebensweise

Tylochromis polylepis bewohnt Sümpfe und Buchten an den Küsten, Flussmündungen und sandige Küstenbereiche des Sees. Jungfische leben in Schwärmen, adulte Fische sind Einzelgänger. Die Fische ernähren sich vor allem von kleinen Krebstieren und Insekten, außerdem von Weichtieren und Pflanzen. Tylochromis polylepis ist ein Maulbrüter, bei dem das Weibchen die Brutpflege übernimmt. Ein Gelege umfasst in der Regel etwas mehr als 100 Eier. Näheres zur Fortpflanzungsbiologie ist nicht bekannt.[3]

Einzelnachweise

  1. Pierre Brichard: Das Große Buch der Tanganjika Cichliden. Mit allen anderen Fischen des Tanganjikasees. Bede, 1995, ISBN 978-3-927997-94-3, S. 425–426.
  2. Anton Lamboj: Die Cichliden des westlichen Afrikas. In: Natur und Tier. 2006, ISBN 3-86659-000-8, S. 27.
  3. Tylochromis polylepis auf Fishbase.org (englisch)
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Tylochromis polylepis: Brief Summary ( allemand )

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Tylochromis polylepis (Syn.: Pelmatochromis polylepis) ist eine afrikanische Buntbarschart, die im ostafrikanischen Tanganjikasee und im Lukuga, dem Abfluss des Tanganjikasees zum Kongo vorkommt.

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Tylochromis polylepis ( anglais )

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Tylochromis polylepis is a species of cichlid native to Lake Tanganyika and the Lukuga River, where it is found in swampy habitats. This species can reach a length of 43.5 cm (17.1 in). It can be found in the aquarium trade.[2]

References

  1. ^ Ntakimazi, G. (2006). "Tylochromis polylepis". IUCN Red List of Threatened Species. 2006: e.T60707A12395735. doi:10.2305/IUCN.UK.2006.RLTS.T60707A12395735.en. Retrieved 17 November 2021.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Tylochromis polylepis" in FishBase. April 2013 version.

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Tylochromis polylepis: Brief Summary ( anglais )

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Tylochromis polylepis is a species of cichlid native to Lake Tanganyika and the Lukuga River, where it is found in swampy habitats. This species can reach a length of 43.5 cm (17.1 in). It can be found in the aquarium trade.

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Tylochromis polylepis ( espagnol ; castillan )

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Tylochromis polylepis es una especie de peces de la familia Cichlidae en el orden de los Perciformes.

Morfología

Los machos pueden llegar alcanzar los 43,5 cm de longitud total.[1]

Distribución geográfica

Se encuentra en África: lago Tanganika.

Referencias

  1. 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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Tylochromis polylepis: Brief Summary ( espagnol ; castillan )

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Tylochromis polylepis es una especie de peces de la familia Cichlidae en el orden de los Perciformes.

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Tylochromis polylepis ( basque )

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Tylochromis polylepis Tylochromis 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.");});
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Tylochromis polylepis: Brief Summary ( basque )

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Tylochromis polylepis Tylochromis generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cichlidae familian.

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Tylochromis polylepis ( néerlandais ; flamand )

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Vissen

Tylochromis polylepis 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 1900 door Boulenger.

Bronnen, noten en/of referenties
  1. (en) Tylochromis polylepis. FishBase. Ed. Ranier Froese and Daniel Pauly. 02 2013 version. N.p.: FishBase, 2013.
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Tylochromis polylepis ( portugais )

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Tylochromis polylepis é uma espécie de peixe da família Cichlidae.[1]

Pode ser encontrada nos seguintes países: Burundi, República Democrática do Congo, Tanzânia e Zâmbia.[1]

Os seus habitats naturais são: rios, lagos de água doce, marismas de água doce e deltas interiores.[1]

Referências

  1. a b c d Ntakimazi, G. (2005). Tylochromis polylepis (em inglês). IUCN 2006. Lista Vermelha de Espécies Ameaçadas da IUCN de 2006 . Página visitada em 5 de Agosto de 2007.
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Tylochromis polylepis: Brief Summary ( portugais )

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Tylochromis polylepis é uma espécie de peixe da família Cichlidae.

Pode ser encontrada nos seguintes países: Burundi, República Democrática do Congo, Tanzânia e Zâmbia.

Os seus habitats naturais são: rios, lagos de água doce, marismas de água doce e deltas interiores.

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Tylochromis polylepis ( vietnamien )

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Tylochromis polylepis là một loài thuộc họ Cichlidae. Nó được tìm thấy ở Burundi, Cộng hòa Dân chủ Congo, Tanzania, and Zambia. Các môi trường sống tự nhiên của chúng là sông, hồ nước ngọt, đầm lầy nước ngọt, and inland deltas.

Tham khảo


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Tylochromis polylepis: Brief Summary ( vietnamien )

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Tylochromis polylepis là một loài thuộc họ Cichlidae. Nó được tìm thấy ở Burundi, Cộng hòa Dân chủ Congo, Tanzania, and Zambia. Các môi trường sống tự nhiên của chúng là sông, hồ nước ngọt, đầm lầy nước ngọt, and inland deltas.

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多鱗球麗魚 ( chinois )

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二名法 Tylochromis polylepis
Boulenger, 1900

多鱗球麗魚,為輻鰭魚綱鱸形目隆頭魚亞目慈鯛科的其中一,分布於非洲坦干伊喀湖及Lukuga河流域,體長可達43.5公分,棲息在沿岸淺水域,以昆蟲甲殼類植物碎屑等為食,生活習性不明,可作為觀賞魚。

参考文献

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多鱗球麗魚: Brief Summary ( chinois )

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多鱗球麗魚,為輻鰭魚綱鱸形目隆頭魚亞目慈鯛科的其中一,分布於非洲坦干伊喀湖及Lukuga河流域,體長可達43.5公分,棲息在沿岸淺水域,以昆蟲甲殼類植物碎屑等為食,生活習性不明,可作為觀賞魚。

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