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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Occidentarius: Name Latin 'occidens' meaning west, and the genus name Arius; in reference to the restriction of the species to the EP, the western-most region occupied by ariids.
More on author: Günther.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas; estuarina demersal; intervalo de profundidade 6 - 107 m (Ref. 96339), usually ? - 60 m (Ref. 9271). Tropical; 24°N - 1°N
Eastern Pacific: México to Perú.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 50.0 cm TL macho/indeterminado; (Ref. 96339); common length : 25.0 cm TL macho/indeterminado; (Ref. 55763); peso máx. publicado: 1.0 kg (Ref. 130775)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Diagnosis: This species is distinguished by the following characters: anterior cavities of lateral ethmoids (where the olfactory bulb is housed) greatly developed; bony excrescence of posterolateral process of lateral ethmoids prominent, completely closing the lateral fenestrae; basioccipital with a laminar bony crest bordering the anterior foramen of aortic tunnel (Ref. 86580).
Body shape (shape guide): elongated.
Abundant on the continental shelf (Ref. 9271). Utilized fresh or salted, but rarely consumed (Ref. 9271). Demersal species that inhabits sandy substrates in coastal waters up to 60m deep. May be caught in nets and purse seines along with other fishes. It is sold fresh (Ref. 55763).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Betancur-R, R., A. Acero P, E. Bermingham and R. Cooke, 2007. Systematics and biogeography of New World sea catfishes (Siluriformes: Ariidae) as inferred from mitochondrial, nuclear, and morphological evidence. Mol. Phylogen. Evol. 45:339-357. (Ref. 86580)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Traumatogenic (Ref. 58010)
Uso pelos humanos
Pescarias: pouco comercial
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Temperatura preferida (Ref.
123201): 20.3 - 28.8, mean 26.9 °C (based on 68 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00308 - 0.00743), b=3.15 (3.02 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nível Trófico (Ref.
69278): 3.7 ±0.0 se; based on diet studies.
Resiliência (Ref.
120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Moderate vulnerability (40 of 100).
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