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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.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino; salobre demersal; rango de profundidad 6 - 107 m (Ref. 96339), usually ? - 60 m (Ref. 9271). Tropical; 24°N - 1°N
Eastern Pacific: México to Perú.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 50.0 cm TL macho / no sexado; (Ref. 96339); common length : 25.0 cm TL macho / no sexado; (Ref. 55763); peso máximo publicado: 1.0 kg (Ref. 130775)
Descripción breve
Claves de identificación | Morfología | Morfometría
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 vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Traumatogenic (Ref. 58010)
Usos humanos
Pesquerías: escaso valor comercial
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 20.3 - 28.8, mean 26.9 °C (based on 68 cells).
Índice de diversidad filogenética (Referencia
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).
Nivel trófico (Referencia
69278): 3.7 ±0.0 se; based on diet studies.
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).
Vulnerabilidad pesquera (Ref.
59153): Moderate vulnerability (40 of 100).
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