Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Danioninae
Etymology: Danio: Vernacular name fron India and Sri Lanka ; sysphigmatus: The specific name sysphigmatus is an adjective based on the Greek adjective ?????????o ? , meaning chained, in reference to the chain-like color pattern on the sides.
Environment / Climate / Range
Freshwater; benthopelagic. Tropical, preferred ?
Asia: Sittaung drainage and coastal rivers along the Thanintharyi coast in Myanmar.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.1 cm SL male/unsexed; (Ref. 101154)
Morphology | Morphometrics
soft rays: 17 - 19;
Vertebrae: 37 - 38. Danio sysphigmatus is distinguished from all congeners except D. assamila, D. dangila, D. catenatus, and D. concatenatus by produced first ray in pectoral and pelvic fins, large cleithral spot, and pattern of dark rings enclosing light interspaces on the side. It differs from those species by having round cleithral spot (vs. vertically extended in D. dangila), presence of anterior interstripe Ia (vs. absent in D. dangila and D. catenatus), round or, usually, slightly elongate rings in 1-2 series along side, width of dark perimeter narrower than diameter of light center (vs. rings clearly elongate in D. assamila; perimeter width equal to diameter of light center in D. assamila, D. catenatus, D. concatenatus, and D. dangila), ring pattern not extending onto caudal peduncle (vs. extending onto caudal peduncle in D. catenatus, D. concatenatus and occasionally D. dangila), and 35-38 lateral line scales (vs. 32-34 in D. dangila, 32-34, rarely 36 in D. assamila) (Ref. 101154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kullander, S.O., 2015. Taxonomy of chain, Danio an Indo-Myanmar species assemblage, with description of four new species (Teleostei: Cyprinidae). Ichthyol. Explor. Freshwat. 25(4):357-380. (Ref. 101154)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00330 - 0.01663), b=3.06 (2.87 - 3.25), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.4 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 (17 of 100) .