Petrocephalus balayi

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Petrocephalus balayi Sauvage, 1883

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Petrocephalus balayi
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Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
More on author: Sauvage.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce démersal. Tropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Africa: Ogowe River in Gabon (Ref. 3203, 85311) and Congo River basin in Cameroon (Ref. 46901), Republic of Congo (Ref. 85311) and Democratic Republic of the Congo (Ref. 1879, 4910, 41580, 41590, 44985, 45434, 45441, 93897, 106245).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL mâle / non sexé; (Ref. 42522)

Description synthétique Morphologie | Morphométrie

Petrocephalus balayi is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: dorsal fin with 20-22 branched rays, anal fin with 26 or 27 branched rays, eye small (HL/ED=4,5-4,9), mouth very wide, associated with a very characteristic head shape when viewed from below, 14 teeth or more in the upper jaw, 28 teeth or more in the lower jaw (Ref. 85331). Melanin pattern consisting of the following: (1) a distinct black round mark on each side of the body below dorsal fin origin; (2) an ovoid mark on each side at the base of the caudal peduncle, not extending onto the upper and lower parts of the caudal fin; (3) a black mark, sometimes diffuse but always present, at the base of the pectoral fins (Ref. 85331).

Biologie     Glossaire (ex. epibenthic)

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Gosse, J.-P., 1984. Mormyridae. p. 63-122. 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. 3203)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

Plus d'informations

Pays
Zones FAO
Écosystèmes
Occurrences
Introductions
Stocks
Écologie
Régime alimentaire
Éléments du régime alimentaire
Consommation alimentaire
Ration
Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Rassemblement de ponte
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
BRUVS
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Electrophoreses
Héritabilité
Pathologies
Traitement
Nutrients
Mass conversion
Collaborateurs
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Stamps, Coins Misc.
Sons
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Vitesse
Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

Outils

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00854 - 0.03078), b=2.94 (2.78 - 3.10), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).