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> Cypriniformes (Carps) > Xenocyprididae (East Asian minnows)
Etymology: Opsariichthys:Greek, opsarion, -ou = a little portion fish + Greek, ichthys = fish (Ref. 45335); rubriventris:Name 'rubriventris' from Latin words 'ruber' and 'venter', meaning 'red' and 'belly', in reference to the red belly of the mature males.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología
Madurez: Lm? range ? - ? cm Max length : 8.2 cm SL macho / no sexado; (Ref. 137452)
Descripción breve Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 7; Radios blandos anales: 9 - 11. This species is distinguished by the following set of characters: absence of maxillary barbels; absence of anterior notch at the tip of the upper lip; lateral line scales 39-43; predorsal scales 13-14; narrow body width; lower jaw protrudes slightly beyond the front of the snout; 2 rows of pearl organs of the cheek, and the pearl organs are cone?shaped; the pectoral fins of adult males do not extend to the origin of the pelvic fins; adult males have significant nuptial coloration; the lower jaw and ventral side are orange?red; the envelope of the first six rays of the anal fin of adult males, females, and juveniles is orange red, and the remaining rays gradually become colorless (Ref. 137452). Body shape (shape guide): fusiform / normal; Cross section: oval.
This species is found in streams at elevations of 200-220 meters, characterized by clear, moderate flowing water, with temperatures ranging from of 22-23°C and a substrate composed of small to medium‑sized granite, boulders, sand or gravel (Ref. 137452).
Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Chen, J.-B., Y.-T. Li, J.-J. Zhou, C. Li, G.-X. Weng, H.-D. Lin and J.-J. Wang, 2024. A new species of cyprinid genus Opsariichthys (Teleostei: Cyprinidae) from the Pearl River, Southern China. Diversity 16(10):596. (Ref. 137452)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Dinámica de la población Coeficiente del crecimiento para Edades / tallas máximas Longitud-peso rel. Longitud-longitud rel. Longitud-frecuencias Conversión de masas Reclutamiento Abundancia
Ciclo de vida Reproducción Madurez Madurez/Gills rel. Fecundidad Puesta Agregaciones de desove Huevos Desarrollo de los huevos Larva Dinámica larvaria
Fisiología Composición corporal Nutrientes Consumo del oxígeno Tipo de natación Velocidad de natación Pigmentos visuales Sonido de peces Enfermedades y parásitos Toxicidad (CL50)
