FB-1554 http://www.fishbase.org/summary/SpeciesSummary.php?id=1554 Animalia Chordata Teleostei Clupeiformes Dorosomatidae Laeviscutella Laeviscutella dekimpei Poll, Whitehead & Hopson, 1965 Sanaga dværgsild Sanaga pygmy herring Nääpsheeringas 小細鯡 小细鲱 Thrattidion nactivagus Roberts, 1972 1990-10-17 2024-04-02 Coppola, S.R., W. Fischer, L. Garibaldi, N. Scialabba and K.E. Carpenter0 SPECIESDAB: Global species database for fishery purposes. User's manual. FAO Computerized Information Series (Fisheries). No. 9. Rome, FAO. 103 p. (Ref. 171) Whitehead, P.J.P.0 FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188) Poll, M., G.G. Teugels and P.J.P. Whitehead0 Clupeidae. p. 41-55. 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. 3509) Anonymous0 Fish registrations within the museum database of the Vertebrate Section of the Royal Museum for Central Africa. MRAC, Tervuren, Belgium. (Ref. 12818) Gourène, G. and G.G. Teugels0 Synopsis de la classification et phylogénie des Pellonulinae de l'Afrique Occidentale et Centrale (Teleostei; Clupeidae). J. Afr. Zool. 108(1):77-91. (Ref. 28136) 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) 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) Carl, H.0 Danish fish names. Zoological Museum of Copenhagen. Unpublished. (Ref. 51471) Chinese Academy of Fishery Sciences0 Chinese aquatic germplasm resources database. http://zzzy.fishinfo.cn (Ref. 58108) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from http://www.fao.org/fishery/collection/asfis, 29 April 2008. (Ref. 75549) Teugels, G.G.0 Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from http://www.fao.org/fishery/collection/asfis/en, March 2010. (Ref. 83882) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from http://www.fao.org/fishery/collection/asfis/en, March 2012. (Ref. 90062) Poll, M.0 Synopsis et distribution géographique des Clupeidae d'eau douce africains, descriptions de trois espèces nouvelles. Bull. Cl. Sci. Acad. R. Belg., 5e Sér., 60(2):141-161. (Ref. 93833) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from http://www.fao.org/fishery/collection/asfis/en, April 2014. (Ref. 95632) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from http://www.fao.org/fishery/collection/asfis/en, [accessed 13/04/2015]. (Ref. 101110) Roberts, T.R.0 Osteology and description of <i>Thrattidion noctivagus</i>, a minute, new freshwater clupeid fish from Cameroon, with a discussion of pellonulin relationships. Breviora 382:1-25. (Ref. 104594) Taverne, L.0 Le complexe squelettique mésethmoïdien de <i>Congothrissa</i> et la validité de la famille des Congothrissidae au sein de l'ordre des Clupéiformes <i>sensu stricto</i> (Pisces, Teleostei). Rev. Zool. Afr. 91(2):330-336. (Ref. 105144) 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) FAO-FIES0 Aquatic Sciences and Fisheries Information System (ASFIS) species list. Retrieved from htttps://www.fao.org/fishery/collection/asfis/en [accessed May, 2018] (Ref. 118272) FB-pic-1553-11376 http://purl.org/dc/dcmitype/StillImage image/gif FAO 1996-06-27 2010-07-09 http://creativecommons.org/licenses/by-nc/3.0/ This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 Unported License. Image can be freely copied and altered but may be used only for non-commercial purposes. Original author and source must be properly acknowledged WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Diseases http://www.fishbase.us/images/species/Thnoc_u0.gif http://www.fishbase.us/images/thumbnails/gif/tn_Thnoc_u0.gif FB-GeneralDescr-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-17 00:00:00 2024-01-22 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=1553 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Diseases A riverine species, collected only at dusk and dawn in swiftly flowing water of about 1 m just above the hydro-electric dam at Edea, Cameroon (Ref. 188). It feeds on plankton and some terrestrial insects (Ref. 188). Teugels, G.G. 2007 Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631) FB-DiagnosticDescr-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-18 00:00:00 2021-02-03 18:03:11 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Diseases Diagnosis: Small and slender or moderately deep-bodied fishes, its depth 20-28% of standard length, perhaps not reaching much over 2 cm standard length; belly rounded, pre-pelvic scutes 4-7, with lateral arms, but without keels; pelvic scute with 2 or 3 lateral arms; post-pelvic scutes 3-5, keeled and with arms; posterior supra-maxilla absent; lower gillrakers 10-12; pelvic insertion well before dorsal fin, with 1 unbranched and 6-7 branched finrays; anal fin beginning under dorsal fin base (Ref. 188, 81631, 93833). The presence of scutes distinguishes Thrattidion noctivagus from Congothrissa gossei and the absence of a posterior supra-maxilla distinguishes it from all other West or Central African pellonulines (Ref. 188).Description: Small and slender or moderately deep-bodied fishes, body relatively compressed, its depth 20-28% of standard length (Ref. 188, 104594). Snout short and rounded; jaws equal; eye large, its center on or slightly above longitudinal midline of body; adipose eyelid well developed (Ref. 104594). Premaxillary with 4-7 small conical teeth solidly implanted, and 2-4 replacement teeth in the gum; maxillary edentulous; dentary with a dozen to 15 small conical teeth solidly implanted and several teeth in stages of replacement; palatine with one to three teeth, roof of mouth otherwise edentulous; fifth ceratobranchial and upper pharyngeal with numerous small teeth, gill arches otherwise edentulous (Ref. 104594). There are 10-12 gillrakers along the lower limb of the first gill arch; upper limb with 4 short, widely spaced gillrakers (Ref. 188, 81631, 93833, 104594). Posterior supra-maxilla absent (Ref. 28136, 81631). Dorsal fin with 14-16 rays, first three or four simple, last divided to base, its origin a little behind pelvic fin insertion, slightly closer to end of caudal fin than to snout tip; anal fin with 23-25 rays, first four or five simple, last divided to base, long, its origin on a vertical through base of eighth or ninth dorsal fin ray; pectoral fin with usually 10 rays; pelvic fin with 1 unbranched and 6-7 branched rays, relatively large, only slightly smaller than pectoral, its origin closer to pectoral fin origin than to anal fin origin; dorsal and anal fin margins gently falcate, dorsal height about 1.5 times anal height; caudal fin deeply forked, upper and lower caudal lobes identical in size and shape; principal caudal rays invariably 10+9, upper procurrent rays 12-13 and lower procurrent rays 8-10 (Ref. 81631, 104594). Scales largely absent, restricted to a double row of 4-9 scales superficial to lateral arms on each side of pre-pelvic scutes, a single row of 4-5 scales superficial to lateral arms on either side of post-pelvic scutes, and about a dozen scales in four or five short rows immediately behind head; the latter scales are deeply embedded in tough tissue in which the trunk portion of the cephalic laterosensory system ramifies, and can only be fully discerned in cleared and stained specimens; most of the scales in the longest row are perforated by laterosensory canals (Ref. 104594). There are 4-7 pre-pelvic scutes, unkeeled, with well-developed lateral arms; pelvic scute keel-less, with bifurcate or trifurcate lateral arms in largest specimens; 3-5 post-pelvic scutes, with well-developed keels and lateral arms (Ref. 81631, 104594). Vertebrae 45-47, about equally divided between abdominal and caudal vertebrae (Ref. 104594).Colouration: Preserved specimens are opaque whitish, lacking melanophores or with a few at the anal fin base and on the caudal peduncle; no lineum argenteum; a dense cluster of large melanophores over brain (Ref. 81631, 104594). Peritoneum probably opaque white and body otherwise translucent in living specimens (Ref. 104594). Teugels, G.G. 2007 Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631) FB-Morphology-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-18 00:00:00 2021-02-03 18:03:11 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Diseases Dorsal spines (total): 0; Dorsal soft rays (total): 14 - 16; Analspines: 0; Analsoft rays: 23 - 25; Vertebrae: 45 - 47 Teugels, G.G. 2007 Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631) FB-Distribution-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-18 00:00:00 2019-12-19 20:51:49 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Africa: Sanaga River in Cameroon (Ref. 188, 3509, 28136, 81631). Teugels, G.G. 2007 Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631) FB-Uses-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-17 00:00:00 2024-01-22 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ FAO General public http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 fisheries: of no interest Coppola, S.R., W. Fischer, L. Garibaldi, N. Scialabba and K.E. Carpenter 1994 SPECIESDAB: Global species database for fishery purposes. User's manual. FAO Computerized Information Series (Fisheries). No. 9. Rome, FAO. 103 p. (Ref. 171) FB-TrophicStrategy-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-19 00:00:00 2019-12-20 16:38:48 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public noctivagus http://rs.tdwg.org/ontology/voc/SPMInfoItems#DiagnosticDescription A riverine species, collected only at dusk and dawn in swiftly flowing water of about 1 m just above the hydro-electric dam at Edea, Cameroon (Ref. 188). It feeds on plankton and some terrestrial insects (Ref. 188). Whitehead, P.J.P. 1985 FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188) FB-Size-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-17 00:00:00 2024-01-22 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 2.1 cm SL (male/unsexed; (Ref. 188)) Whitehead, P.J.P. 1985 FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188) 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#Distribution 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-1553 http://purl.org/dc/dcmitype/Text text/html Crispina B. Binohlan 1990-10-17 00:00:00 2024-01-22 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=1553 pelagic; freshwater