Distichodus fasciolatus Boulenger, 1898
Sharktail distichodus
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Distichodus fasciolatus
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Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
> Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335); fasciolatus: The species name "fasciolatus" is derived from the Latin word "fascia", meaning "band, bandage, girdle, zone, strip, stripe" with "fasciola" as a diminutive and most probably refers to the well-marked transverse bars on the flanks (Ref. 96324).
More on author: Boulenger.
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335); fasciolatus: The species name "fasciolatus" is derived from the Latin word "fascia", meaning "band, bandage, girdle, zone, strip, stripe" with "fasciola" as a diminutive and most probably refers to the well-marked transverse bars on the flanks (Ref. 96324).
More on author: Boulenger.
Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie
; eau douce pélagique; pH range: 6.0 - 8.0; dH range: ? - 25. Tropical; 23°C - 27°C (Ref. 13371)
Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Africa: widespread in the Congo River basin, from the marine Lower Congo up to the upper Lualaba (Ref. 96324), but absent from the Luapula-Moero (Ref. 2970, 96324). Reports from Lake Tanganyika (Ref. 4967, 6770, 36901) are questionable and probably incorrect (Ref. 96324).
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 60.0 cm TL mâle / non sexé; (Ref. 7094); poids max. publié: 3.0 kg (Ref. 7094)
Max length : 60.0 cm TL mâle / non sexé; (Ref. 7094); poids max. publié: 3.0 kg (Ref. 7094)
Description synthétique Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 24 - 26; Épines anales: 0; Rayons mous anaux: 12 - 16. Diagnosis: Within the Congo River basin, Distichodus fasciolatus can be distinguished from D. affinis, D. altus, D. decemmaculatus, D. noboli, D. notospilus and D. teugelsi by its higher total number of lateral lina scales, 61-70 vs. less than 46 in the six other species, and from D. maculatus by the absence of large, dark spots all over the body, instead of 13-20 vertical dark bars, and a higher number of dorsal fin rays, 24-26, vs. 19-21 (Ref. 96324). It can be distinguished from D. antonii by its inferior mouth, vs. terminal, and its higher number of scales between the lateral line and the dorsal fin, 13-16 vs. 10-12; from D. lusosso by its inferior mouth, vs. terminal, its feebly compressed snout, vs. distinctively prolonged, and its higher number of dark vertical bars along the body, at least in specimens larger than 150 mm standard length, 13-20 vs. 6-8; from D. sexfasciatus by its higher number of teeth on the outer row of both jaws, 20-30 vs. 12-18, its higher number of dark vertical bars on the flanks, at least in specimens larger than 150 mm standard length, 13-20 vs. 6-8, and its brownish-yellowish colouration vs. orange-reddish to red (Ref. 96324). Moreover, Distichodus fasciolatus can be differentiated from both the D. atroventralis complex and D. langi by its lower number of pelvic fin rays, 10, exceptionally 11, vs. 11, exceptionally 10 for the D. atroventralis complex and always 11 for D. langi; from the D. atroventralis complex by its higher number of dark vertical bars, at least in specimens larger than 150 mm standard length, 13-20 vs. 6-9, and presence of pale pelvic fins, at least in specimens larger than 200 mm standard length, vs. blackish; and from D. langi by a combination of characteristics: 24-26 total dorsal fin rays, vs. 26-28, and a lower head depth, 35.9-62.9% of head length for specimens of comparable size, vs. 67.4-69.4% of head length (Ref. 96324).
Body shape (shape guide): short and / or deep.
Body shape (shape guide): short and / or deep.
Distichodus fasciolatus is a bottom-dweller in streams, found near the muddy bottom in lakes, large rivers and their dead-ending branches (Ref. 96324). This species is mainly herbivorous, though insects and nematodes were also found in the stomachs (Ref. 96324). The fry are born near the river banks just before the April or December floods and feed on zooplankton and insect larvae in the flooded zones; adults mainly feed on insect larvae, aquatic plants, leaves and seeds (Ref. 96324).
Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Référence principale
Téléchargez vos références | Références | Coordinateur | Collaborateurs
Moelants, T., V. Mbadu Zebe, J. Snoeks and E. Vreven, 2014. A review of the Distichodus antonii assemblage (Characiformes: Distichodontidae) from the Congo basin. J. Nat. Hist. 48(27-28):1707-1735. (Ref. 96324)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Préoccupation mineure (LC) ; Date assessed: 16 February 2009
CITES
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
FAO - Publication: search | FishSource |
Plus d'informations
Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Dynamique des populations
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Cycle de vie
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Anatomie
Surface branchiale
Cerveau
Otolithe
Surface branchiale
Cerveau
Otolithe
Physiologie
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
Liées à l'homme
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Outils
Quiz bio | E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point |
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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 | Aquariums publics | 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
|
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01445 (0.00605 - 0.03454), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
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Niveau trophique (Réf. 69278) |
2.0 ±0.00 se; based on food items. |
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Vulnérabilité de la pêche (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |