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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335); valentini: This species is named in honor of Mr. Valentin Mbossi, 'pinassier extraordinaire' at Odzala National Park; his first name is used to reflect appreciation for him and to avoid confusion with a similarly named species, Petrocephalus mbossou (Ref. 85331).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Africa: Likouala River (middle Congo River basin) in Republic of Congo (Ref. 85331). Also reported from "Lower Congo River in the vicinity of the Pool Malebo" (Ref. 85331).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 7.7 cm SL macho/indeterminado; (Ref. 85331)
Descrição suscinta
Morfologia | Morfometria
Diagnosis: Petrocephalus valentini is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: dorsal fin with 19-24 branched rays; anal fin with 24-26 branched rays; eye large, the ratio head length and eye-diameter between 2.9 and 3.2; mouth very small, the ratio head length and mouth width between 4.7 and 5.8; 12 teeth or fewer in the upper jaw; and 17 teeth or fewer in the lower jaw (Ref. 85331). Pigmentation pattern subtle, including two components: (1) a pale dorsal black mark on each side of the body below the anterior base of the dorsal fin, under the second to sixth dorsal rays; (2) an ovoid mark, sometimes scarcely visible, at the base of the caudal fin, extending weakly onto the upper and lower lobes of the fin (Ref. 85331).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Lavoué, S., J.P. Sullivan and M.E. Arnegard, 2010. African weakly electric fishes of the genus Petrocephalus (Osteoglossomorpha: Mormyridae) of Odzala National Park, Republic of the Congo (Lékoli River, Congo River basin) with description of five new species. Zootaxa 2600:1-52. (Ref. 85331)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias:
Mais informação
Nomes comunsSinônimosMetabolismoPredadoresEcotoxicologiaReproduçãoMaturidadeDesovaAgregação de desovaFecundidadeOvosDesenvolvimento dos ovos
Idade/TamanhoCrescimentoPeso-comprimentoComprimento-comprimentoFrequências de comprimentoMorfometriaMorfologiaLarvasDinâmica larvalRecrutamentoAbundânciaBRUVS
ReferênciasAquaculturaPerfil para aquaculturaEstirpesGenéticaElectrophoresesHereditariedadeDoençasProcessamentoNutrientsConversão de massa
ColaboradoresFotosStamps, Coins Misc.SonsCiguateraVelocidadeTipo de nataçãoÁrea branquialOtólitosCérebrosVisão
Ferramentas
Relatórios especiais
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Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00697 - 0.03603), b=2.85 (2.67 - 3.03), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
