FB-5075 http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 Animalia Chordata Teleostei Osteoglossiformes Mormyridae Hyperopisus Hyperopisus bebe (Lacepède, 1803) Menyu Sauya Sawya Rypoun krátkoploutvý Ngai Hernessuu Liwoe gokpo Purppuranorsukala Purppuranuijakala Kuma Lere Bebee Xunbu-muumuyi Roume Aben Audol Ayieth Bushi Egwayeko Kuath Kusumgbun Nanadasurun Ngbukpu Ngbukpur Ogbala bou Paru meebo Thoth Yalgen-sablga Zeïn Zeing Zia 西方背眼長頜魚 西方背眼长颌鱼 貝比背眼長頜魚 贝比背眼长颌鱼 Hyperopisus bebe bebe (Lacepède, 1803) Hyperopisus bebe chariensis Blache, 1964 Hyperopisus bebe occidentalis Günther, 1866 Hyperopisus chariensis Blache, 1964 Hyperopisus occidentalis Günther, 1866 Hyperopisus occidentalis tenuicauda Pellegrin, 1904 Hyperopisus tenuicauda Pellegrin, 1904 Hyperopsis bebe (Lacepède, 1803) Mormyrus bebe Lacepède, 1803 1992-02-17 2024-01-23 Breder, C.M. and D.E. Rosen0 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. 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Blackwell Science Ltd. 440 p. (Ref. 138143) FB-GeneralDescr-5075 http://purl.org/dc/dcmitype/Text text/html Tess Cruz 1992-02-17 00:00:00 2025-11-19 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Adults inhabit both still and flowing waters, breed in the flood season and feed on mollusks (Ref. 28714). They posses electroreceptors over the entire head and on the ventral and dorsal regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). This electric organ discharge (EOD) is steroid-sensitive (Ref. 10763; 10764). Fecundity value of 18,924 eggs has been reported for this species (Ref. 10607). Bigorne, R. 1990 Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915) FB-DiagnosticDescr-5075 http://purl.org/dc/dcmitype/Text text/html Maria Lourdes D. Palomares 1992-06-12 00:00:00 2022-11-08 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Diagnosis: body depth 3.5-6.2 times in SL, head length 4.5-6.2 times (Ref. 2915, 4903, 81274). Head length 1.6-2.3 times greater than its width (Ref. 2915, 81274) and 6-13.5 times greater than eye diameter (Ref. 81274). Dorsal head profile strongly curved (Ref. 4903), rounded, snout short, thick and blunt (Ref. 81274). Eye small, diameter 1/6 (in young fishes) to 1/9 of head length in adults; mouth small and terminal, teeth notched, 3-5 in upper and 4-6 in lower jaw (Ref. 4903). Anal fin with 52-71 rays, its origin about equidistant from snout tip and caudal-fin base (Ref. 81274). Dorsal fin very short (Ref. 28714, 81274), one fifth or less of the anal fin length (Ref. 4903, 28714), with 12-16 rays (Ref. 4903, 81274) of which the first 2-3 unbranched (Ref. 4903). Anal-fin base 4-7.7 times longer than dorsal-fin base; pectoral fins 1.1- 1.7 times in head length; pelvic fins about half as long as the pectorals (Ref. 2915, 81274). 90-120 lateral line scales (Ref. 4903, 81274) and 16-20 (exceptionally 22) around caudal peduncle (Ref. 81274). Depth of caudal peduncle 1.5-3.6 times in its length (Ref. 2915, 81274).Coloration: ground color silvery, back darker, olivaceous, brownish or yellowish, with scattered black dots in adults; belly greyish; neck greyish or white; fins greyish (Ref. 81274). Bigorne, R. 2003 Mormyridae. p. 155-222. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81274) FB-Morphology-5075 http://purl.org/dc/dcmitype/Text text/html Maria Lourdes D. Palomares 1992-06-12 00:00:00 2022-11-08 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#DiagnosticDescription Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 16; Analspines: 0; Analsoft rays: 52 - 71 Bigorne, R. 2003 Mormyridae. p. 155-222. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81274) FB-Distribution-5075 http://purl.org/dc/dcmitype/Text text/html Tess Cruz 1992-02-17 00:00:00 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Morphology Africa: all Sahelo-Sudanese river basins (Ref. 81274), including the Senegal, Gambia, Niger, Volta, Ouémé, Ogun and Chad (Ref. 2915). Also in the Nile basin, up to the Albert and Murchison Niles (Ref. 3203). Bigorne, R. 2003 Mormyridae. p. 155-222. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81274) FB-Uses-5075 http://purl.org/dc/dcmitype/Text text/html Tess Cruz 1992-02-17 00:00:00 2025-11-19 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution fisheries: commercial Trewavas, E. and F.R. Irvine 1947 Fresh-water fishes. p. 221-282. In F.R. Irvine (ed.) The fishes and fisheries of the Gold Coast. The Crown Agents for the Colonies, London. 352 p. (Ref. 11235) FB-Migration-5075 http://purl.org/dc/dcmitype/Text text/html Tess Cruz 1992-02-17 00:00:00 2025-11-19 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km. Lucas, M.C., E. Baras, T.J. Thom, A. Duncan and O. Slavík 2001 Migration of freshwater fishes. Blackwell Science Ltd. 440 p. (Ref. 138143) FB-TrophicStrategy-5075 http://purl.org/dc/dcmitype/Text text/html Drina Sta. Iglesia 2000-11-10 00:00:00 2000-11-10 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public bebe http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size Inhabits both still and flowing waters, breeds in the flood season. Feeds on mollusks. Bigorne, R. 1990 Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915) FB-Size-5075 http://purl.org/dc/dcmitype/Text text/html Tess Cruz 1992-02-17 00:00:00 2025-11-19 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats 51.0 cm SL (male/unsexed; (Ref. 2915)); max. published weight: 1,000 g (Ref. 3799) Bigorne, R. 1990 Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915) Ita, E.O. 1984 Kainji (Nigeria). p. 43-103. In J.M. Kapetsky and T. Petr (eds.) Status of African reservoir fisheries. CIFA Tech. Pap. 10:326 p. (Ref. 3799) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-5075 http://purl.org/dc/dcmitype/Text text/html Tess Cruz 1992-02-17 00:00:00 2025-11-19 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=5075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution demersal; potamodromous (Ref. 138143); freshwater; brackish Lucas, M.C., E. Baras, T.J. Thom, A. Duncan and O. Slavík 2001 Migration of freshwater fishes. Blackwell Science Ltd. 440 p. (Ref. 138143)