Labeobarbus nzadinkisi Vreven, Musschoot, Decru, Wamuini Lunkayilakio, Obiero, Cerwenka & Schliewen, 2018
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drawing shows typical species in Cyprinidae.
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drawing shows typical species in Cyprinidae.
Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
> Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Torinae
Etymology: nzadinkisi: The current name of the Inkisi River is derived from its local appellation 'Nzadi I nkisi' in Kikongo (Kintandu/Kindibu dialects), referring to the missionaries who threw the 'mi-nkisi', fetish object containing a certain nkisi spirit, in the river in their effort to convert the local populations to Christianity; species name referring to this new name of the river basin to which it appears endemic; in addition, by its reference to the nkisi-objects, indirectly referring to the enigmatic hybridization complex of which this species is a parental species; a noun in apposition, making its gender ending unchangeable (Ref. 127934).
Etymology: nzadinkisi: The current name of the Inkisi River is derived from its local appellation 'Nzadi I nkisi' in Kikongo (Kintandu/Kindibu dialects), referring to the missionaries who threw the 'mi-nkisi', fetish object containing a certain nkisi spirit, in the river in their effort to convert the local populations to Christianity; species name referring to this new name of the river basin to which it appears endemic; in addition, by its reference to the nkisi-objects, indirectly referring to the enigmatic hybridization complex of which this species is a parental species; a noun in apposition, making its gender ending unchangeable (Ref. 127934).
Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie
; eau douce benthopélagique. Tropical
Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Africa: Inkisi River, Lower Congo River basin above the Zongo Falls, in Democratic Republic of the Congo (Ref. 127934).
Taille / Poids / Âge
Description synthétique Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 14 - 16; Épines anales: 0; Rayons mous anaux: 9; Vertèbres: 37 - 38. Diagnosis: Within the Congo basin Labeobarbus nzadinkisi can be distinguished from L. altipinnis, L. ansorgii, L. batesii, L. brauni, L. cardozoi, L. caudovittatus, L. dartevellei, L. fasolt, L. habereri, L. humphri, L. iphthimostoma, L. iturii, L. jubbi, L. longidorsalis, L. longifilis, L. lufupensis, L. macroceps, L. macrolepidotus, L. macrolepis, L. mawambi, L. mawambiensis, L. mirabilis, L. nanningsi, L. oxyrhynchus, L. paucisquamatus, L. stappersii, L. trachypterus, L. upembensis and L. wittei by its high number of lateral line scales, 35-41 vs. less than 34; from L. leleupanus by its low number of lateral line scales, 35-41 vs. 45-47; from L. tropidolepis and L. platyrhinus by its low number of scales between the lateral line and the dorsal and ventral midline, 4.5-5.5 and 5.5 vs. 7.5-8.5 and 7.5-9.5 in L. tropidolepis and 6.5-7.5 and 6.5-8.5 in L. platyrhinus, and from the latter by its low number of circumpeduncular scales as well, 12-14 vs. 16-18; from L. robertsi by the absence of papillae on the anterior edge of the lower jaw vs. with numerous well identifiable papillae; from L. progenys by its non-prognathous lower jaw vs. prognathous; from L. altianalis, L. gestetneri and L. somereni by its lack of both pairs of barbels vs. two pair of well-developed barbels; and from L. pellegrini by its short prepelvic length, 46.5-48.5% of standard length vs. 50.6%, its short pelvic length, 17.9-21.0% of standard length vs. 21.8%, and its large eye, 29.1-34.6% of head length vs. 27.1% (Ref. 127934). Further, L. nzadinkisi can be distinguished from the other members of the Inkisi complex, L. nzadimalawu and the intermediate/hybrid specimens by the presence of a cornified Varicorhinus real cutting edge on the outer edge of the lower jaw in combination with the absence of barbels and poorly developed fleshy lips on the lateral side of the lower jaw vs. never with a cutting edge but instead always with a free mental lobe in combination with two pairs of well-developed barbels and well-developed fleshy lips in L. nzadimalawu; although a cornified Varicorhinus real cutting edge can be found in some specimens, this most often in combination with at leats a single pair of well-developed barbels and well-developed fleshy lips in the hybrid specimens; in addition, L. nzadinkisi can be distinguished from L. nzadimalawu by its broad mouth width, 26.8-50.5% of head length vs. 16.1-26.5%, short head length, 20.1-22.1% of standard length vs. 23.0-26.4%, long dorsal-fin base length, 14.4-17.9% of standard length vs. 12.1-16.0%, and short prepectoral distance, 20.0-22.1% of standard length vs. 22.6-26.0% (Ref. 127934). Finally, L. nzadinkisi can be distinguished from Acapoeta tanganicae by its low number of lateral line scales, 35-41 vs. 57-67 (Ref. 127934). Within the adjacent Lower Guinea ichthyofaunal province, L. nzadinkisi can be distinguished from L. axelrodi, L. batesii, L. brevispinis, L. cardozoi, L. caudovittatus, L. compiniei, L. habereri, L. fimbriatus, L. jaegeri, L. malacanthus, L. mariae, L. mbami, L. micronema, mungoensis, L. roylii, L. sandersi, L. semireticulatus, L. steindachneri, L. tornieri, L. versluysii and L. werneri by its higher number of lateral line scales, 35-41 vs. less than 34; from L. aspius, L. lucius and L. progenys by its non-prognathous lower jaw vs. lower jaw clearly prognathous; and from L. rocadasi by its last unbranched dorsal-fin ray not being transformed into a well-developed spine, but instead being clearly segmented over approximately half its length, or 43.0-50.1% of dorsal-fin height vs. last unbranched dorsal-fin ray transformed into a spine, clearly segmented only at its most distal end; finally, L. nzadinkisi can be distinguished from Sanagia velifera by its high number of lateral line scales, 35-41 vs. 22-24 (Ref. 127934). Within the adjacent Quanza ichthyofaunal province, L. nzadinkisi can be distinguished from L. ansorgii, L. gulielmi, L. jubbi, L. nanningsi, L. rhinophorus, L. rosae and L. roylii by its high number of lateral line scales, 35-41 vs. less than 34; from L. clarkeae, L. ensifer and L. varicostoma by the absence of papillae on the anterior edge of the lower jaw vs. with well identifiable papillae; from L. lucius and L. progenys by its non-prognathous lower jaw vs. lower jaw clearly prognathous; and from L. boulengeri, L. ensis, L. girardi, L. steindachneri, L. stenostoma and L. rocadasi by its last unbranched dorsal-fin ray not being transformed into a well-developed spine, but instead being clearly segmented over approximately half its length, or 43.0-50.1% of dorsal-fin height vs. last unbranched dorsal-fin ray transformed into a spine, clearly segmented only at its most distal end (Ref. 127934).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Référence principale
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Vreven, E.J.W.M.N., T. Musschoot, E. Decru, S. Wamuini Lunkayilakio, K. Obiero, A.F. Cerwenka and U.K. Schliewen, 2018. The complex origins of mouth polymorphism in the Labeobarbus (Cypriniformes: Cyprinidae) of the Inkisi River basin (Lower Congo, DRC, Africa): insights from an integrative approach. Zool. J. Linn. Soc. 186:414-482. (Ref. 127934)
CITES
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
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Écologie trophique
Aliments (proies)
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Aliments (proies)
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Dynamique des populations
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Surface branchiale
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Systèmes d'aquaculture
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Timbres, pièces de monnaie, divers
Outils
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Articles particuliers
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Sources Internet
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimations basées sur des modèles
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Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00468 (0.00220 - 0.00994), b=3.10 (2.90 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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Niveau trophique (Réf. 69278) |
3.2 ±0.5 se; based on size and trophs of closest relatives |
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Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
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Vulnérabilité de la pêche (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |