Life Cycle
(
Inglês
)
fornecido por Fishbase
Male or female carries the egg in the mouth (Ref. 52307, Ref. 13614). A few days prior to spawning, both partners remain close together for much of the time; the genital papilla of the female is clearly visible immediately before spawning and is much broader and larger then the male's; females normally more succesfull in brooding the fry; specimens are relatively shy and prefer to lie silently near the bottom in secluded areas when mouthbrooding, which ends about three weeks post-spawning; once free swimming, the fry normally does not return to the parent's mouth (Ref. 52307).
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Diagnostic Description
(
Inglês
)
fornecido por Fishbase
Diagnosis: profile of the snout evenly decurved, descending to a nearly horizontal mouth; narrow interorbital space (24-27% head length)(Ref. 53940, 53949). Lower jaw not, or only slightly inclined from the horizontal; lower pharyngeal jaw only slightly longer than wide (Ref. 81260). Dentigerous area of lower pharyngeal bone longer than anterior blade in young and of characteristic shape, with a narrow anterior apical portion (Ref. 53949). Blade of lower pharyngeal bone 0.7-0.95 times median length of toothed area; 3 regular rows of teeth; upper series of black blotches parallel to dorsal outline; black band of uneven width extending from opercular spot to anterior part of caudal peduncle; posterior end of caudal peduncle with vertical blotch meeting its fellow over top; fins colorless; tilapia mark absent (Ref. 53940).Description: body moderatley deep (Ref. 52307), body depth 34.4-37.5% SL (Ref. 81260). Profile of snout evenly and strongly decurved (Ref. 53940, 81260), descending to a nearly horizontal mouth (Ref. 53940). Snout blunt; lower jaw slightly inclined away from horizontal when mouth closed (Ref. 81260). 3 regular rows of jaw teeth (Ref. 53940, 53949, 81260), outer row of upper jaw with 45-55 fine, obliquely spatulate bicuspid teeth, inner rows tricuspid (Ref. 81260). Dentigerous area of lower pharyngeal bone longer than anterior blade in young and of characteristic shape, with a narrow anterior apical portion; maxillary not quite reaching vertical from anterior edge of eye (Ref. 53949). Narrow interorbital space (24-27% head length) (Ref. 53940, 81260). Gill-rakers short (Ref. 53949), the lower very short (Ref. 53949, 81260). 2 series of scales on cheek; roof of pharynx in front of and at sides of upper pharyngeal teeth rather richly provided with a swollen, grooved epithelial area, but not with a hanging pad; scales cycloid; last anal spine about as long as last dorsal spine, and stronger; pelvic fins with outermost soft ray the longest, extending nearly or quite to anus, in males to genital papilla; caudal fin scaly at the base and about halfway along the upper and lower rays (Ref. 53949).Coloration: base body coloration pale yellow-brown, darker dorsally (Ref. 81260). Upper series of black blotches parallel to the dorsal outline (Ref. 53940, 53949, 81260). Black band of uneven width extending from the opercular spot to the anterior part of the caudal peduncle (Ref. 52307, 53940, 53949, 81260). Posterior end of caudal peduncle with vertical blotch meeting its fellow over the top; tilapia mark absent (Ref. 53940, 53949). Fins colorless; larger individuals with dark grey snout and back, and upper series of blotches no longer visible (Ref. 53940). Branchiostegal membrane, isthmus and sometimes the chest black (Ref. 52307, 53940), which is probable related to gonad condition and not to size (Ref. 53940). Outer edge of pelvic fins white (Ref. 53949). Body silvery to grey; back sometimes more yellowish-brown; younger individuals often with 4-5 dark markings at the base of the dorsal fin (Ref. 52307).
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Morphology
(
Inglês
)
fornecido por Fishbase
Dorsal spines (total): 15 - 16; Dorsal soft rays (total): 10 - 11; Analspines: 3; Analsoft rays: 8 - 9; Vertebrae: 29
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Trophic Strategy
(
Inglês
)
fornecido por Fishbase
Feeds on algae, small insects and fish eggs (Ref. 52307). Also kleptoparasite of freshwater crabs (Ref. 53950). Ovophilic mouthbrooder with both sexes as possible incubator (Ref. 52307).
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- Recorder
- Grace Tolentino Pablico
Biology
(
Inglês
)
fornecido por Fishbase
Feeds on algae, small insects and fish eggs (Ref. 52307). Also kleptoparasite of freshwater crabs (Ref. 53950). Ovophilic mouthbrooder with both sexes as possible incubator; from aquarium observations: a few days prior to spawning, both partners remain close together for much of the time; the genital papilla of the female is clearly visible immediately before spawning and is much broader and larger than the male's; females are normally more successful than males when it comes to brooding the fry; when mouthbrooding, which ends about 3 weeks post-spawning, the specimens are relatively shy and prefer to lie silently near the bottom in secluded areas; once free swimming, juveniles normally do not return to the parent's mouth again (Ref. 52307).
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Importance
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Inglês
)
fornecido por Fishbase
fisheries:
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Konia eisentrauti
(
Catalão; Valenciano
)
fornecido por wikipedia CA
Konia eisentrauti és una espècie de peix de la família dels cíclids i de l'ordre dels perciformes.
Morfologia
Hàbitat
És una espècie de clima tropical entre 25°C-27°C de temperatura.[6][4]
Distribució geogràfica
Es troba a Àfrica: és una espècie de peix endèmica del llac Barombi-ma-Mbu (oest del Camerun).[4][7]
Referències
-
↑ Trewavas, E., J. Green & S. A. Corbet, 1972. Ecological studies on crater lakes in West Cameroon. Fishes of Barombi Mbo. J. Zool. (Lond.) v. 167 (pt 1): 41-95, Pl. 1.
-
↑ BioLib (anglès)
-
↑ Trewavas, E., 1962. Fishes of the crater lakes of the northwestern Cameroons. Bonner Zool. Beitr. v. 13 (heft 1/3): 146-192.
-
↑ 4,0 4,1 4,2 FishBase (anglès)
-
↑ Teugels, G.G., 1991. Konia. p. 206. A: J. Daget, J.-P. Gosse, G.G. Teugels i D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussel·les; MRAC, Tervuren; i ORSTOM, París. Vol. 4.
-
↑ Baensch, H.A. i R. Riehl, 1997: Aquarien Atlas, Band 5. Mergus Verlag, Melle, Alemanya. 1148 p.
-
↑ Vivien, J., 1991. Faune du Cameroun. Guide des mammifères et des poissons. GICAM. 271 p.
Bibliografia
- Anònim, 2002. Fish collection database of the American Museum of Natural History. American Museum of Natural History, Central Park West, NY 10024-5192, Estats Units.
- Axelrod, H. R., 1993. The most complete colored lexicon of cichlids. T.F.H. Publications, Neptune City, New Jersey, Estats Units.
- Axelrod, Herbert Richard (1996): Exotic Tropical Fishes. T.F.H. Publications. ISBN 0-87666-543-1.
- Dominey, W.J. i A.M. Snyder, 1988. Kleptoparasitism of freshwater crabs by cichlid fishes endemic to Lake Barombi Mbo, Cameroon, West Africa. Env. Biol. Fish. 22(2):155-160.
- Eschmeyer, William N.: Genera of Recent Fishes. California Academy of Sciences. San Francisco, Califòrnia, Estats Units. iii + 697. ISBN 0-940228-23-8 (1990).
- 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, Califòrnia, Estats Units. 2905. ISBN 0-940228-47-5.
- 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.
- Riehl, R. i H.A. Baensch, 1996. Aquarien Atlas, Band 1. 10a. edició. Mergus Verlag GmBH, Melle, Alemanya. 992 p.
- Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea i W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p.
- Römer U.: Cichliden Atlas, Bd. 1. Melle. 1311 p. Any 1998.
- Scliewen, U.K., D. Tautz i S. Pääbo, 1994. Sympatric speciation suggested by monophyly of crater lake cichlids. Nature 368:629-632.
- Thys van den Audenaerde, D.F.E., 1963. La distribution géographique des Tilapia au Congo. Bull. Séanc. ARSOM 9(3):570-605.
- Wheeler, A.: The World Encyclopedia of Fishes, 2a edició, Londres: Macdonald. Any 1985.
Enllaços externs
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Podeu veure l'
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naturalista dins el
projecte Wikispecies.
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Konia eisentrauti: Brief Summary
(
Catalão; Valenciano
)
fornecido por wikipedia CA
Konia eisentrauti és una espècie de peix de la família dels cíclids i de l'ordre dels perciformes.
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Konye
(
Inglês
)
fornecido por wikipedia EN
The konye (Konia eisentrauti) is a critically endangered species of fish in the family Cichlidae. It is endemic to Lake Barombi Mbo, a crater lake in western Cameroon. It is threatened because of pollution and sedimentation due to human activities, and potentially also by large emissions of carbon dioxide (CO2) from the lake's bottom (compare Lake Nyos). This species can reach a length of 9.3 centimetres (3.7 in) TL.
Description
The konye is a small species of cichlid growing to a length of about 9.3 cm (3.7 in). It is somewhat laterally compressed and has a horizontal mouth and sloping forehead. The fins are colourless. the dorsal fin has 15 to 16 spines and 10 to 11 soft rays; the anal fin has 3 spines and 8 to 9 soft rays.[2] The colouring of this fish is distinctive, with a pale background shade and a row of dark blotches running down the back, and another row along each flank. The head is mostly bare of scales, the cheeks have a few scales and the body is fully scaled.[3]
Ecology
The konye is a benthopelagic species living in the warm upper waters of the lake where the temperature is around 26 °C (79 °F). It feeds on pieces of plant, scraping algae off rocks and stones, and also on mayflies, small invertebrates and fish eggs and sometimes steals food collected by freshwater crabs. This fish is a mouthbrooder. Either of the parents take the fertilised eggs into their mouth, and retain them there for protection. While mouthbrooding, the fish tends to remain quietly near the lakebed, and females tend to be more successful at raising the young than males. The incubation period is 7 to 10 days, the fry usually being expelled to live independently after about three weeks.[2][3]
Status
The konye is known from a single body of water, Lake Barombi Mbo, in Cameroon. The area around the lake is increasingly being deforested and used for slash-and-burn agriculture and palm oil plantations. This has encouraged sedimentation in the lake and pollution. Being more exposed to winds than previously, there is a danger that the waters of the lake may "turn over", with deep, cold, oxygen-poor water replacing the warm, nutrient-rich and well-oxygenated surface layers. Another possible hazard that the fish may face in this crater lake is outgassing, the emission of "burps" of CO2 formerly held in solution.[1] An episode of this sort is thought to have occurred in 2007, when many deep water fish were found floating on the surface of the lake. As a result of these threats, the International Union for Conservation of Nature has assessed the conservation status of this fish as "critically endangered".[1]
Specific name
The specific name honours Martin Eisentraut (1902-1994), a German zoologist , who was leader of the expedition which collected the type.[4]
References
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Konye: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Lake Barombi
The konye (Konia eisentrauti) is a critically endangered species of fish in the family Cichlidae. It is endemic to Lake Barombi Mbo, a crater lake in western Cameroon. It is threatened because of pollution and sedimentation due to human activities, and potentially also by large emissions of carbon dioxide (CO2) from the lake's bottom (compare Lake Nyos). This species can reach a length of 9.3 centimetres (3.7 in) TL.
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Konia eisentrauti
(
Espanhol; Castelhano
)
fornecido por wikipedia ES
Konia eisentrauti es una especie de peces de la familia Cichlidae en el orden de los Perciformes.
Morfología
Hábitat
Es una especie de clima tropical que vive entre 25 °C-27 °C de temperatura.
Distribución geográfica
Se encuentran en África: es una especie endémica del lago Barombi-ma-Mbu (oeste del Camerún ).
Referencias
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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Konia eisentrauti: Brief Summary
(
Espanhol; Castelhano
)
fornecido por wikipedia ES
Konia eisentrauti es una especie de peces de la familia Cichlidae en el orden de los Perciformes.
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Konia eisentrauti
(
Basco
)
fornecido por wikipedia EU
(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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Konia eisentrauti: Brief Summary
(
Basco
)
fornecido por wikipedia EU
Konia eisentrauti Konia generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cichlidae familian.
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Konia eisentrauti
(
Francês
)
fornecido por wikipedia FR
Konia eisentrauti est une espèce de poisson de la famille des Cichlidés endémique du Cameroun. Elle est en danger critique d'extinction selon l'UICN.
Référence
- Trewavas, 1962 : Fishes of the crater lakes of the northwestern Cameroons. Bonner Zoologische Beiträge 13 (1/3) p. 146–192. (Tilapia eisentrauti)
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Konia eisentrauti: Brief Summary
(
Francês
)
fornecido por wikipedia FR
Konia eisentrauti est une espèce de poisson de la famille des Cichlidés endémique du Cameroun. Elle est en danger critique d'extinction selon l'UICN.
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Konia eisentrauti
(
Neerlandês; Flamengo
)
fornecido por wikipedia NL
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Konia eisentrauti
(
Português
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fornecido por wikipedia PT
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Konia eisentrauti: Brief Summary
(
Português
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fornecido por wikipedia PT
Konia eisentrauti é uma espécie de peixe da família Cichlidae.
É endémica de Camarões.
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Konia eisentrauti
(
Vietnamita
)
fornecido por wikipedia VI
Konia eisentrauti là một loài cá thuộc họ Cichlidae. Nó là loài đặc hữu của Cameroon.
Nguồn
Tham khảo
-
^ Moelants, T. 2010. Konia eisentrauti. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on ngày 21 tháng 4 năm 2013.
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Konia eisentrauti: Brief Summary
(
Vietnamita
)
fornecido por wikipedia VI
Konia eisentrauti là một loài cá thuộc họ Cichlidae. Nó là loài đặc hữu của Cameroon.
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埃氏康尼麗魚
(
Chinês
)
fornecido por wikipedia 中文维基百科
埃氏康尼麗魚: Brief Summary
(
Chinês
)
fornecido por wikipedia 中文维基百科
埃氏康尼麗魚（学名：Konia eisentrauti）為輻鰭魚綱鱸形目隆頭魚亞目慈鯛科的其中一種，被IUCN列為極危保育類動物，分布於非洲喀麥隆西部Barombi湖流域，體長可達9.3公分，棲息在湖泊，以藻類、昆蟲、魚卵等為食，生活習性不明。
Lake Barombi 
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