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Cypriniformes (Carps) >
Danionidae (Danios) > Danioninae
Etymology: Devario: Bangla/Bengali:‘debari’, local name for these fishes; also meaning ‘brother in law’ (Ref. 2031).
Eponymy: Ananda ‘Andy’ Pathirana has been a Sri Lankan aquarium-fish breeder, trader and exporter for over forty years. [...] (Ref. 128868), visit book page.
More on authors: Kottelat & Pethiyagoda.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico; no migratorio. Tropical; 22°C - 25°C (Ref. 13614); 7°N - 6°N
Asia: Nilwala River basin, Opatha, Sri Lanka.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 6.0 cm SL macho / no sexado; (Ref. 118056)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 14 - 15; Radios blandos anales: 16 - 18. Devario pathirana differs from all its congeners by the combination of the following characters: body consisting of 8-9 dark, irregular bars between pectoral-fin origin and caudal-peduncle origin; absence of P+1 and P-1 stripes; body depth 30-33 %SL; snout length less than eye diameter; 14-15 predorsal scales; dorsal fin with 11½-12½ branched rays; anal fin with 14½ branched rays; a blunt, knob-like process on 1st infraorbital; presence of danionin notch; origin of dorsal fin to hypural distance when carried forward reaching middle of eye; pectoral fin, when adpressed, just reaching origin of pelvic fin (Ref. 118056).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Occurs in still pools to swift flowing streams with pebble or boulder substrates, seldom over sand. Has not been found in silted rivulets flowing into mainstream. More sedentary than D. malabaricus. Forms groups of 3-5 individuals slowly moving near the surface. Probably feeds on insects. Aquarium fish exporters voluntarily refrained from collecting this species until it was better understood and bred commercially. Collected in moderate numbers.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: sin interés; Acuicultura: comercial; Acuario: Comercial
Herramientas
Informes especiales
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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=0.00977 (0.00422 - 0.02262), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.2 ±0.40 se; based on food items. |
Resiliencia (Referencia 120179) |
Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (15 of 100). 🛈 |