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Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Lefua: A Niuean word that means "kingship", "royalty"; nishimurai: Name 'nishimurai' dedicated to Toshiaki Nishimura, who first morphologically distinguished this novel species.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal. Temperate
Asia: Japan.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 6.3 cm SL macho / no sexado; (Ref. 133057)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 8 - 10; Radios blandos anales: 8 - 10; Vértebra: 39 - 43. This species is distinguished from its congeners by the following set of characters: rhomboid or triangular dark blotches on middle of caudal fin base absent; black longitudinal stripe on both body sides in mature males absent; dusky cross bars on dorsal area of body absent; dusky bar beside dorsal fin base absent; eyes located dorsally on head; narrow conspicuous longitudinal mark between base of outer rostral barbel and eye; small dorsal fin; small or bit diameter (6.3-11.2% of head length); small value of interorbital width relative to body width (28.1-39.4%); dark spots dorsally and ventrally on caudal fin base; small dark brown spots from snout to caudal peduncle; small dark spots on dorsal and caudal fins (approximately same size as eyes) (Ref. 133057).
Cross section: oval.
This species dwells in small mountain streams with soft bottom composed of sand and gravel. It hides under rocks and stones at the river edge or sediments, as well as under fallen leaves from the trees around the water body (Ref. 133057).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Katayama, Y. and N. Sawada, 2024. Integrative taxonomy revealed a new species of Lefua (Teleostei, Nemacheilidae) from Fukui Prefecture, Japan. Evol. Syst. 8:247-260. (Ref. 133057)
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
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00724 (0.00347 - 0.01512), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
2.8 ±0.3 se; based on size and trophs of closest relatives |
Resiliencia (Referencia 120179) |
Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.). |
Vulnerabilidad pesquera (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |