FB-11075 http://www.fishbase.org/summary/SpeciesSummary.php?id=11075 Animalia Chordata Teleostei Gonorynchiformes Kneriidae Cromeria Cromeria occidentalis Daget, 1954 Läänekromeeria Adaudau 西方尼罗鱼 西方尼羅魚 Cromeria nilotica (non Boulenger, 1901) Cromeria nilotica occidentalis Daget, 1954 Cromeria niloticus (non Boulenger, 1901) 1994-06-18 2024-05-28 Blache, J.0 Les poissons du bassin du Tchad et du bassin adjacent du Mayo Kebbi. Étude systématique et biologique. Mém. O.R.S.T.O.M. 4(2):483 p. (Ref. 367) Daget, J. and A. Iltis0 Poissons de Côte d'Ivoire (eaux douces et saumâtres). Mém. I.F.A.N. 74:385 p. (Ref. 1989) Daget, J.0 Les poissons du Niger supérieur. Mém. I.F.A.N. 36:391 p. (Ref. 2756) Paugy, D.0 Cromeriidae. p. 187-188. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren and O.R.S.T.O.M., Paris, 384 p. (Ref. 2912) Daget, J.0 La collection de poissons d'eau douce de l'I.F.A.N. Cat. I.F.A.N. 3:1-59. (Ref. 2998) Daget, J.0 Les poissons. p.113-168. In M. Blanc and J. Daget (eds.) Les eaux et les poissons de Haute-Volta. Mém. I.F.A.N. 50. (Ref. 3003) Daget, J. and J.R. Durand0 Poissons. p. 687-771. In J.R. Durand and C. Lévêque (eds.) Flore et faune aquatiques de l'Afrique Sahelo-Soudanienne. Tome II. Éditions de l'ORSTOM, Coll. Init. Doc. Techn. 45: 391-873. (Ref. 3012) Daget, J. and A. Stauch0 Poissons de la partie camerounaise du bassin de la Bénoué. Mém. I.F.A.N. 68:85-107. (Ref. 3013) Lévêque, C. and D. Paugy0 Guide des poissons d'eau douce de la zone du programme de lutte contre l'onchocercose en Afrique de l'Ouest. Convention ORSTOM-OMS. 393 p. (Ref. 3032) Lowe-McConnell, R.H.0 Keys for the field identification of freshwater fishes likely to occur in or above the new man-made lakes, Lake Volta in Ghana and the Kainji Lake on the River Niger in Nigeria. Ghana Universities Press, Accra. 22 p. (Ref. 3036) Roberts, T.0 A provisional check-list of the fresh-water fishes of the Volta Basin, with notes on species of possible economic importance. J. W. Afr. Sci. Ass. 12(1):10-18. (Ref. 3066) Roman, B.0 Les poissons des hauts-bassins de la Volta. Ann. Mus. R. Afr. Centr., série in-8°, Sci. Zool., 150:191 p. (Ref. 3069) Poll, M.0 Cromeriidae. p. 134. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3566) Hureau, J.-C.0 La base de données GICIM: Gestion informatisée des collections ichthyologiques du Muséum. p. 225-227. In Atlas Préliminaire des Poissons d'Eau Douce de France. Conseil Supérieur de la Pêche, Ministère de l'Environnement, CEMAGREF et Muséum national d'Histoire naturelle, Paris. (Ref. 4517) Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott0 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. (Ref. 4537) Anonymous0 Fish registrations within the museum database of the Vertebrate Section of the Royal Museum for Central Africa. MRAC, Tervuren, Belgium. (Ref. 12818) Paugy, D., K. Traoré and P.S. Diouf0 Faune ichtyologique des eaux douces d'Afrique de l'Ouest. p.35-66. In G.G. Teugels, J.F. Guégan and J.J. Albaret (eds.) Biological diversity of African fresh-and brackish water fishes. Geographical overviews presented at the PARADI Symposium, Senegal, 15-20 November 1993. Ann. Mus. R. Afr. Centr., Sci. Zool., 275:177 p. (Ref. 13331) Olaosebikan, B.D. and A. Raji0 Field guide to Nigerian freshwater fishes. Federal College of Freshwater Fisheries Technology, New Bussa, Nigeria. 106 p. (Ref. 31256) Wu, H.L., K.-T. Shao and C.F. Lai (eds.)0 Latin-Chinese dictionary of fishes names. The Sueichan Press, Taiwan. 1028 p. (Ref. 31517) Anonymous0 Fish collection database of the Natural History Museum, London (formerly British Museum of Natural History (BMNH)). Natural History Museum, London (formerly British Museum of Natural History (BMNH)). (Ref. 31982) Stauch, A.0 Le bassin camerounais de la Bénoué et sa pêche. Mém. O.R.S.T.O.M. 15:152 p. (Ref. 39826) Géry, J.0 Une nouvelle famille de poissons dulçaquicoles africains: les Grasseichthyidae. C. R. Acad. Sci., Paris, 259(3):4805-4807. (Ref. 42473) Roman, B.0 La Haute-Volta carrefour ichthyologique. Not. Doc. Voltaïques 6(1):3-24. (Ref. 43442) Roman, B.0 Complément d'information sur les poissons des hauts-bassins du fleuve Volta (première note). Notes Doc. Voltaïques 7(4):37-61. (Ref. 43711) Daget, J.0 Données récentes sur la biologie des poissons dans le delta central du Niger. Hydrobiologia 9(4):321-347. (Ref. 43789) Blanc, M., F. d'Aubenton, M. Ovazza and M. Valade0 Recherches sur la prophylaxie de l'onchocercose en A.O.F. I. Étude hydrobiologique de la Bougouri-Bâ et essais de désinsectisation. Bull. I.F.A.N. (A) 20(2):634-668. (Ref. 45893) Vivien, J.0 Faune du Cameroun. Guide des mammifères et poissons. GICAM et Ministère de la Coopération et du Développement, Yaoundé/Paris. 271 p. (Ref. 51193) Moritz, T., R. Britz and K.E. Linsenmair0 <i>Cromeria nilotica</i> and <i>C. occidentalis</i>, two valid species of the African freshwater fish family Kneriidae (Teleostei: Gonorhynchiformes). Ichthyol. Explor. Freshwat. 17(1):65-72. (Ref. 57474) Chinese Academy of Fishery Sciences0 Chinese aquatic germplasm resources database. http://zzzy.fishinfo.cn (Ref. 58108) Paugy, D.0 Cromeriidae. p. 226-228. 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. 81276) Grande, T.0 Phylogeny and paedomorphosis in an African family of freshwater fishes (Gonorynchiformes: Kneriidae). Fieldiana 78:1-20. (Ref. 89095) Roman, B.0 Poissons de la Volta et de la Haute-Comoé. Notes sur l'Écologie des formes naines. Notes Doc. voltaiques 8(3):54-70. (Ref. 91321) d'Aubenton, F.0 Sur <i>Cromeria nilotica</i> Boulenger 1901 (poisson des eaux douces africaines). Répartition géographique et notes écologiques. Bull. Mus. Natn. Hist. Nat., Paris, 2e sér, 30(1):68-70. (Ref. 91322) Howes, G.J.0 Cranial muscles of gonorynchiform fishes, with comments on generic relationships. Bull. Br. Mus. nat. Hist. (Zool.), 49(2):273-303. (Ref. 91350) eElurikkus0 eElurikkus koondab ühte portaali Eesti eluslooduse andmed. http://elurikkus.ut.ee/ (Ref. 105471) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from http://www.fao.org/fishery/collection/asfis/en (accessed 08/06/2017). (Ref. 115257) FB-GeneralDescr-11075 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-06-18 00:00:00 2024-05-28 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=11075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Maximum TL was recorded at 4.1 cm (Ref. 3566). Occurs on several substrates from fine mud to rough gravel and plant material; almost never buries into the substrate (Ref. 57474). Feeds on plankton (Ref. 57474, 91322) and phytoplankton (Ref. 91322). Reproduction likely takes place during the rainy season (August to September) (Ref. 57474) at high water levels in floodplains, brooks or rice fields (Ref. 91276, 91322). Moritz, T., R. Britz and K.E. Linsenmair 2006 <i>Cromeria nilotica</i> and <i>C. occidentalis</i>, two valid species of the African freshwater fish family Kneriidae (Teleostei: Gonorhynchiformes). Ichthyol. Explor. Freshwat. 17(1):65-72. (Ref. 57474) FB-DiagnosticDescr-11075 http://purl.org/dc/dcmitype/Text text/html Nicolas Bailly 2017-11-15 00:00:00 2012-08-24 16:01:35 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=11075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Uses Diagnosis: pelvic fin origin at level of anterior base of dorsal fin; preorbital stripe present; caudal peduncle depth 6.9-11% of SL; dorsal precaudal fin fold not reaching base of dorsal fin; 8-9 pectoral fin rays; 7 pelvic fin rays; 2 supernumerary rays in anal fin; 8 dorsal fin pterygiophores; 9+9 principal caudal fin rays; cephalic lateral line canals and supraorbital bone present; parasphenoid wide, with foramina for internal carotid arteries; neural spine of 2nd vertebra short and wide, only the length of its vertebral centrum and different from subsequent neural spines (Ref. 57474).Description: body elongate, slightly laterally compressed, caudal peduncle depth nearly identical to body depth; body scaleless; snout rounded; mouth inferior and in front of eyes, protractile, mouth opening very small; lips unculiferous; jaws toothless; opercular opening reduced to a tiny semilunate opening above pectoral fin base (Ref. 57474). Gill rakers long, slender, closely spaced and numerous, up to 90 on first gill arch; elongate finger-shaped epibranchial organ with a central lumen between 4th and 5th gill arch; intestine about 1.5 times SL (Ref. 91276). Precaudal fin fold present, not extending up to dorsal fin base; 7 pelvic fin rays plus pelvic splint; 9-10 dorsal fin rays, including 2 (rarely 1) supernumerary rays; 8 dorsal fin pterygiophores; 7-8 anal fin rays, including 2 (rarely 1) supernumerary rays; 6 anal fin pterygiophores; caudal fin forked with 7-11 dorsal procurrent rays, 9 upper and 9 lower principal rays and 6-9 procurrent ventral rays; 40-43 vertebrae, 27-29 abdominal and 12-15 caudal; ribs on all abdominal vertebrae except first 2; 3 branchiostegal rays (Ref. 57474). For more details on osteology see Ref. 57474 and Ref. 89095 (skull, axial skeleton, suspensorium) and d'Aubenton 1961 (detailed skull morphology).Coloration: in life: translucent, peritoneum greenish with silvery reflection; dark preorbital stripe on side of snout in front of eye, continued as a stripe in opercular region and about 10 bold rectangular mid-lateral blotches along sides of body with 1 blotch (sometimes divided into 2) at middle of base of caudal fin; slightly above mid-lateral row of blotches a thinner row of about 16 black stipple-like marks approaching mid-lateral row on caudal peduncle, but ending before base of caudal fin slightly in front of last mid-lateral body blotch; a series of dark mid-dorsal blotches starting at anterior head region with the one at base of dorsal fin often enlarged and more conspicuous than others and most posterior ones extending along dorsal edge of caudal fin; often with numerous irregular small spots between mid-dorsal series of blotches and lateral series of small stipple-like marks; 2 series of dark spots on interradial membranes of caudal fin forming 2 narrow vertical lines; a mid-ventral row of small black spots along caudal peduncle; a black smudge at base of anal fin; dorsal fin with a narrow stripe at distal third; pelvic, pectoral and anal fins transparent; intensity of coloration in life depends heavily on brightness of substrate and can be adapted within a few hours; anaesthetized live individuals lose most of the color pattern within minutes (Ref. 57474). Preserved specimens not translucent, depending on preservative yellowish brown or pale white; myosepta clearly visible; preorbital black stripe , mid-dorsal series of blotches and color marks on caudal fin, caudal peduncle and base of anal fin persist; some individuals with patches on opercular region or single dots on dorsal flanks (Ref. 57474). Moritz, T., R. Britz and K.E. Linsenmair 2006 <i>Cromeria nilotica</i> and <i>C. occidentalis</i>, two valid species of the African freshwater fish family Kneriidae (Teleostei: Gonorhynchiformes). Ichthyol. Explor. Freshwat. 17(1):65-72. (Ref. 57474) FB-Morphology-11075 http://purl.org/dc/dcmitype/Text text/html Nicolas Bailly 2017-11-15 00:00:00 2012-08-24 16:01:35 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=11075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Migration Dorsal soft rays (total): 9 - 10; Analsoft rays: 7 - 8; Vertebrae: 40 - 43 Moritz, T., R. Britz and K.E. Linsenmair 2006 <i>Cromeria nilotica</i> and <i>C. occidentalis</i>, two valid species of the African freshwater fish family Kneriidae (Teleostei: Gonorhynchiformes). Ichthyol. Explor. Freshwat. 17(1):65-72. (Ref. 57474) FB-Distribution-11075 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-06-18 00:00:00 2015-09-21 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=11075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#TrophicStrategy Africa: basins of upper and middle Niger River, Benoué and upper Volta in Guinea, Mali, Burkina Faso, Ghana, Benin, Cameroon (Ref. 57474), Chad (Ref. 367) and Ivory Coast (Ref. 3066). Probably also in Togo, Nigeria and Niger (Ref. 57474). Moritz, T., R. Britz and K.E. Linsenmair 2006 <i>Cromeria nilotica</i> and <i>C. occidentalis</i>, two valid species of the African freshwater fish family Kneriidae (Teleostei: Gonorhynchiformes). Ichthyol. Explor. Freshwat. 17(1):65-72. (Ref. 57474) FB-TrophicStrategy-11075 http://purl.org/dc/dcmitype/Text text/html Christine Marie V. Casal 2015-09-21 00:00:00 2015-09-21 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public occidentalis http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size Occurs on several substrates from fine mud to rough gravel and plant material; almost never buries into the substrate (Ref. 57474). Feeds on plankton (Ref. 57474, 91322) and phytoplankton (Ref. 91322). Reproduction likely takes place during the rainy season (August to September) (Ref. 57474) at high water levels in floodplains, brooks or rice fields (Ref. 91276, 91322). d'Aubenton, F. 1958 Sur <i>Cromeria nilotica</i> Boulenger 1901 (poisson des eaux douces africaines). Répartition géographique et notes écologiques. Bull. Mus. Natn. Hist. Nat., Paris, 2e sér, 30(1):68-70. (Ref. 91322) FB-Size-11075 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-06-18 00:00:00 2024-05-28 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=11075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats 4.4 cm SL (male/unsexed; (Ref. 91321)) Roman, B. 1975 Poissons de la Volta et de la Haute-Comoé. Notes sur l'Écologie des formes naines. Notes Doc. voltaiques 8(3):54-70. (Ref. 91321) 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-11075 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-06-18 00:00:00 2024-05-28 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=11075 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution benthopelagic; freshwater; pH range: 6.2 - 7.5