Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Cichlasomatinae
Etymology: Symphysodon: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335). More on author: Heckel.
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 4.2 - 6.2; dH range: ? - 1. Tropical; 26°C - 30°C (Ref. 1672); 1°S - 3°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.3 cm SL male/unsexed; (Ref. 36377)
Countries | FAO areas | Ecosystems | Occurrences | SELECT
scientificname = Symphysodon discus
LIMIT 1Point map | Introductions | Faunafri
South America: Amazon River basin in Brazil, near the mouth of the Negro River, in the lower Abacaxis River, and in the lower Trombetas River.
Feeds on worms, crustaceans, insects and plant matter. Maximum length 20 cm TL (Ref. 7020).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Deposit several hundred eggs on stones or plants; both parents defend eggs and larvae; larvae feed on a skin mucus during their first few days.
Kullander, S.O., 1996. Eine weitere Übersicht der Diskusfische, Gattung Symphysodon Heckel. D. Aqu. U. Terr. Z., Sonderheft "Diskus". (Ref. 33249)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01023 - 0.06167), b=3.05 (2.84 - 3.26), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.33 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .