Actinopteri (ray-finned fishes) > Eupercaria/misc
(Various families in series Eupercaria) > Monodactylidae
(Moonyfishes or fingerfishes)
Etymology: Monodactylus: Greek, monos = one + Greek, daktylos = finger (Ref. 45335). More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; reef-associated; oceanodromous (Ref. 51243); depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Western Indian Ocean: Red Sea to False Bay, South Africa, Madagascar (Ref. 4337), and Reunion (Ref. 53568).
Length at first maturity / Size / Weight / Age
Maturity: Lm 14.0  range ? - ? cm
Max length : 31.0 cm TL male/unsexed; (Ref. 5400)
Inhabits coastal waters including estuaries and lagoons (Ref. 5213). Seldom enters freshwater. Juveniles can be kept in the aquarium (Ref. 4833). Caught with throw nets (Ref. 30573).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Desoutter, M., 1986. Monodactylidae. p. 338-339. In J. Daget, J.P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4337)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 17.9 - 27.9, mean 26.4 °C (based on 100 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5781 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01556 - 0.06136), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (17 of 100) .
Nutrients (Ref. 124155
): Calcium = 67.6 [34.9, 119.7] mg/100g ; Iron = 0.753 [0.430, 1.511] mg/100g ; Protein = 17.8 [16.7, 19.0] % ; Omega3 = 0.26 [0.13, 0.52] g/100g ; Selenium = 28.9 [13.0, 66.1] μg/100g ; VitaminA = 71.8 [18.7, 257.6] μg/100g ; Zinc = 1.5 [1.0, 2.3] mg/100g (wet weight);