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Siluriformes (Catfishes) >
Astroblepidae (Naked sucker-mouth catfishes)
Etymology: Astroblepus: Greek, astra = ray + Greek, blepo = to look (Ref. 45335); rivasae: Named for Tulia Sofia Rivas Lara (Universidad Tecnologica del Choco).
Eponymy: Tulia Sofia Rivas Lara is a Colombian biologist at the Universidad Tecnológica del Chocó ‘Diego Luis Cordoba’. She was honoured for having “contributed greatly” (translation) to the knowledge of the fishes of Chocó, Colombia (where this catfish occurs). (Ref. 128868), visit book page.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal. Tropical
South America: Colombia.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 4.9 cm SL macho / no sexado; (Ref. 119425); 4.4 cm SL (female)
Descripción breve
Claves de identificación | Morfología | Morfometría
This species is distinguished by the following characters: adipose fin with mobile spine connected to the caudal peduncle through a membrane; preadipose membrane extended from the posterior part of the dorsal-fin terminating to the adipose-fin origin; maxillary barbel reaching to the operculum; first pectoral-fin ray larger than the head; pectoral fin with 5-6 soft branched rays associated to the third radial element; dorsal-fin spine is prolonged; first pelvic-fin ray extending beyond urogenital pore; outer row of premaxillary teeth with one bicuspid and 10-11 conical teeth; two outermost caudal-fin rays enlarged; basibranchial bone has Y-shaped inverted form; fifth ceratobranchial bone with 6 teeth in the anterior region; adipose fin located dorsal to the vertebrae 19; first anal-fin pterygiophore ventral to vertebrae 14; vertebrae 24, pleural ribs 10 (Ref. 119425).
Cross section: oval.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Ardila Rodríguez, C.A., 2018. Astroblepus rivasae (Siluriformes: Astroblepidae), una nueva especie de la Cuenca del Río Atrato, Choco, Colombia. Peces del Departamento del Choco 11(2):1-20. (Ref. 119425)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01047 (0.00436 - 0.02513), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.2 ±0.5 se; based on size and trophs of closest relatives |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |