Orthochromis gecki Schedel, Vreven, Katemo Manda, Abwe, Chocha Manda & Schliewen, 2018
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drawing shows typical species in Cichlidae.
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drawing shows typical species in Cichlidae.
Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Orthochromis: Greek, ortho = straight + Greek, chromis = a fish, perhaps a perch (Ref. 45335); gecki: The species is named in honour of Mr. Jakob Geck who is a passionate, German fish naturalist, thanking him for his dedicated volunteer work and untiring support for the ichthyology section of the ZSM; his great experience in keeping rheophilic cichlids contributed to the knowledge of behaviour and ecology of many cichlid taxa, including Orthochromis katumbii and O. indermauri (Ref. 122085).
Eponymy: Jakob Geck is a German ichthyologist and volunteer researcher. [...] (Ref. 128868), visit book page.
Etymology: Orthochromis: Greek, ortho = straight + Greek, chromis = a fish, perhaps a perch (Ref. 45335); gecki: The species is named in honour of Mr. Jakob Geck who is a passionate, German fish naturalist, thanking him for his dedicated volunteer work and untiring support for the ichthyology section of the ZSM; his great experience in keeping rheophilic cichlids contributed to the knowledge of behaviour and ecology of many cichlid taxa, including Orthochromis katumbii and O. indermauri (Ref. 122085).
Eponymy: Jakob Geck is a German ichthyologist and volunteer researcher. [...] (Ref. 128868), visit book page.
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: Lubudi River, tributary of Lualaba River in Democratic Republic of the Congo (Ref. 122085).
Taille / Poids / Âge
Description synthétique Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 16 - 17; Rayons mous dorsaux (Total) : 10 - 12; Épines anales: 3; Rayons mous anaux: 8 - 9; Vertèbres: 29 - 31. Diagnosis: Orthochromis gecki can be readily distinguished from all species currently placed in Orthochromis, except O. torrenticola, which has eggspot-like maculae, by presence of eggspots on anal fin (Ref. 122085). It is further distinguished from O. kasuluensis by having fewer anal-fin rays, 8-9 vs. 10; from O. malagaraziensis by having more scales between upper lateral line and dorsal-fin origin, 5-8 vs. 3-4; from O. mazimeroensis by having more horizontal line scales, 29-31 vs. 26-28; from O. rubrolabialis, O. rugufuensis and O. uvinzae by having fewer anal-fin spines, 16-17 vs. 18-20, and in position of pterygiophore supporting last dorsal-fin spine, vertebral count 15-16 vs. 17-19; it is furthermore distinguished from O. uvinzae by having fewer abdominal vertebrae, 13-14 vs. 15-16, and by position of pterygiophore supporting last anal-fin spine, vertebral count 14-15 vs. 16-17 (Ref. 122085). Orthochromis gecki is distinguished from O. stormsi by having more horizontal line scales, 29-31 vs. 26-28, and fewer total gill rakers, 9-12 vs. 13-15; from O. polyacanthus by having fewer dorsal-fin spines, 16-17 vs. 18-20, more dorsal-fin rays, 10-12 vs. 8-9, and it is distinguished by position of pterygiophore supporting last dorsal-fin spine, vertebral count 15-16 vs. 17-18; from O. torrenticola by having fewer anal-fin spines, 3 vs. 4 (Ref. 122085). Meristic values of O. gecki overlap with those of O. luongoensis, O. kalungwishiensis, and O. machadoi but is distinguished by narrower interorbital width, 9.62-12.86% of head length vs. 13.18-21.27% (Ref. 122085). It is distinguished from Schwetzochromis neodon by having more circumpeduncular scales, 16 vs. 12; from Haplochromis snoeksi by having more anal-fin rays, 8-9 vs. 5-6; from Haplochromis bakongo by more horizontal line scales, 29-31 vs. 26-28, more dorsal-fin spines, 16-17 vs. 15, and by position of pterygiophore supporting last dorsal-fin spine, vertebral count 15-16 vs. 13-14; from Haplochromis moeruensis by having more horizontal line scales, 29-31 vs. 27-28, and more scales in upper lateral line, 21-25 vs. 19-20; meristic values of Orthochromis gecki overlap with those of Haplochromis vanheusdeni but is distinguished by having a smaller interorbital width, 9.62-12.86% of head length vs. 14.20-20.30% (Ref. 122085). It is distinguished from O. kimpala by having fewer series of scales on cheek, 0-2 vs. 3-4; meristic values of O. gecki overlap with those of O. mporokoso, O. katumbii, and O. indermauri but is distinguished by having smaller interorbital width, 9.6-12.9% of head length vs. 13.0-21.7% (Ref. 122085).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Found in a river which has a rocky bottom with patches of gravel and sand, and is about 15 meters wide and about 50 cm deep (Ref. 122085). This species seems to be a maternal mouthbrooder (Ref. 122085).
Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Référence principale
Téléchargez vos références | Références | Coordinateur : Kullander, Sven O. | Collaborateurs
Schedel, F.D.B., E.J.W.M.N. Vreven, B. Katemo Manda, E. Abwe, A. Chocha Manda and U.K. Schliewen, 2018. Description of five new rheophilic Orthochromis species (Teleostei: Cichlidae) from the Upper Congo drainage in Zambia and the Democratic Republic of the Congo. Zootaxa 4461(3):301-349. (Ref. 122085)
CITES
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
FAO - Publication: search | FishSource |
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Écologie trophique
Aliments (proies)
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Aliments (proies)
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Consommation alimentaire
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Dynamique des populations
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Cycle de vie
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Fécondité
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Œufs
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Surface branchiale
Cerveau
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Physiologie
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Timbres, pièces de monnaie, divers
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Outils
E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point |
Capture-MSY |
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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
| 0 | |
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Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
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Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |