Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Atheriniformes
(Silversides) > Melanotaeniidae
(Rainbowfishes, blue eyes)
Etymology: Melanotaenia: Greek, melan, -anos = black + latin, taenia = stripe (Ref. 45335); picta: From the Latin 'picta', meaning painted, in reference to its beautiful color pattern.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Asia: Mareremar River system in Kobroor Island, Aru Islands, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.3 cm SL male/unsexed; (Ref. 110723); 7.9 cm SL (female)
Morphology | Morphometrics
(total): 5 - 6;
soft rays: 19 - 23. This species can be diagnosed by the following combination of characters: V-VI-I,11-14 dorsal-fin rays; I,19-23 anal-fin rays; 13-16 (usually 14) pectoral-fin rays; 35-36 scales on lateral line, 16-19 predorsal scales; 16-22 (usually > 20) cheek scales; 15-19 total gill rakers on first arch; greatest body depth of adult male 33.9 % SL; color in life generally shades of blue green to blue with metallic reflections and indication of darker blue mid-lateral stripe, most prominent on caudal peduncle where edged below with relatively broad white stripe; in situ color pattern composed of brilliant golden reflections especially conspicuous on each side of midlateral region on side of body and caudal peduncle; and reddish to yellow highlights on dorsal, anal, and caudal fins (Ref. 110723).
Occupies habitat considered among the most scenic freshwater environments found at the Aru Islands, consisting of small, rainforest brooks with quiet pools interspersed with cascades to 3-4 m high. The habitat has excellent water clarity and stream channels composed of relatively smooth limestone with minimal aquatic vegetation, but abundant shelter for fishes in the form of log snags (Ref. 110723).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., R.K. Hadiaty, P.J. Unmack and M.V. Erdmann, 2015. Rainbowfishes (Melanotaenia: Melanotaeniidae) of the Aru Islands, Indonesia with descriptions of five new species and redescription of M. patoti Weber and M. senckenbergianus Weber. aqua, Int. J. Ichthyol. 21(2):66-108. (Ref. 110723)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100) .