Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Apogonidae
(Cardinalfishes) > Apogoninae
Etymology: rufus: From the Latin rufus meaning reddish, in reference to the ground color in life. More on authors: Randall & Fraser.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 15 - 80 m (Ref. 40889). Tropical
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Pacific: Ryukyu Islands to Fiji.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm SL male/unsexed; (Ref. 40889)
Morphology | Morphometrics
soft rays: 9. Color in alcohol light brown. Color in life light reddish brown, the edges of scales darker than centers. Two faint blackish bars on body, one beneath each dorsal fin. A small blackish spot midposteriorly on caudal peduncle. A faint blackish spot of about the same size on opercle, with a faint pale area around it, and a faint dark marking above. A thin blackish steak extending posteriorly and slightly downward from lower edge of eye. First dorsal fin light brown with a broad blackish anterior margin and a pale bluish posterior margin. Second dorsal and anal fins light brownish red with a basal band of yellowish dark brown edged with pale bluish. Caudal fin light reddish brown, the upper and lower edges dark brown. Pectoral fins light red. Pelvic fins with clear membranes, the rays orange-yellow, the lateral edge brownish. Iris mainly yellow (Ref 40889).
Collected from exposed coral reefs (Ref. 40889). Solitary, also found in outer reef slopes in 15-80 m (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).
Randall, J.E. and T.H. Fraser, 1999. Clarification of the western Pacific cardinalfish species Apogon trimaculatus and A. rhodopterus, with description of a similar new species. Raffles Bull. Zool. 47(2):617-633. (Ref. 40889)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.3 - 28.4, mean 27.2 (based on 173 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00729 - 0.03291), b=3.06 (2.88 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .