Actinopterígios (peces con aletas radiadas) >
Perciformes (Perch-likes) >
Gobiidae (Gobies) > Gobionellinae
Medioambiente / Clima / Gama
Ecología
; agua dulce; salobre bentopelágico; anfidromo (Ref. 57749). Tropical, preferred ?
Southwestern Indian Ocean: Réunion, Mauritius, Rodrigues, Comores, Madagascar.
Tamaño / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 25.0 cm SL macho / no sexado; (Ref. 57749)
Short description
Morfología | Morfometría
Espinas dorsales (total): 7; Radios blandos dorsales (total): 10-11; Espinas anales 1; Radios blandos anales: 9 - 10. Large head. Fusiform body. Large and terminal mouth. Two dorsal fins. First with 6 spines, second with 1 spine and 10 to 11 branched rays. Adults body and fins usually grey to black with a clearer belly. Juveniles brown with a serie of darker rounded marks along the flanks. First dorsal usually shows a black mark in its posterior part, especially for young specimens. Fading while fish age. 10 to 25cm (Ref. 57749).
This species occurs in freshwaters and sometimes brackish waters in slow to fast current waters to the base of the first falls. Usually occurs in clear waters with sand, gravel or rock bottom. Feeds on algae, detritus, worms, gastropods and crustaceans. Close biology to A. guamensis. Amphidromous species. Adults migrate to the mouth of the rivers for reproduction. Females spawn on the rocks' surface where the males fecund the eggs. Males protect the eggs until they hatch (incubation lasts 24 to 70hrs). Larvae, translucid, are then carried into estuaries or sea. They come back after they spent 150 to 165 days in seawaters (Ref. 57749). Also Ref. 4343.
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Keith, P., G. Marquet, P. Valade, P. Bosc and E. Vigneux, 2006. Atlas des poissons et des crustacés d'eau douce des Comores, Mascareignes et Seychelles. Muséum national d’Histoire naturelle, Paris. Patrimoines naturels, 65:250p. (Ref. 57749)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Más información
PaísesÁreas FAOEcosistemasOcurrencias, aparicionesIntroduccionesStocksEcologíaDietacomponentes alimenticiosconsumo de alimentoRación
Age/SizeCrecimientoLength-weightLength-lengthLength-frequenciesMorfometríaMorfologíaLarvaDinámica larvariaReclutamientoAbundancia
ReferenciasAcuiculturaPerfil de acuiculturaRazasGenéticaFrecuencias de alelosheritabilidadEnfermedadesProcesamientoMass conversion
Herramientas
Special reports
Download XML
Fuentes de Internet
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00395 - 0.01919), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 2.2 ±0.1 se; Based on size and trophs of closest relatives
Resiliencia (Ref.
69278): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100) .
