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Teleostei (teleosts) > Cypriniformes (Carps) > Danionidae (Danios) > Danioninae
Etymology: Microdevario: From the Greek 'mikros' meaning small and the generic name Devario, alluding to the small size and its relationship with Devario; nanus: Specific name from the Latin word 'nanus' = dwarf (Ref. 38434).
More on authors: Kottelat & Witte.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; brackish; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: presently known only from Myanmar, but may have a wider distribution in the Irrawaddy delta.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 1.5 cm SL male/unsexed; (Ref. 38434)

Short description Identification keys | Morphology | Morphometrics

In the field, slightly yellow with iridescent blue side and silvery eye and belly; fins translucent with blotch in dorsal fin variably developed; aquarium-kept yellow with iridescent bluish side and silvery-golden eye, belly and opercle. Dorsal fin tip with a black blotch and a fainter one at the tip of the anal fin. Longitudinal scale series 25-26 + 1-2. Predorsal scales 11-13. Branched anal-fin rays 10-11. Dorsal fin rays 3 simple, 7 branched. Pectoral fin slightly falcate, with no axillary lobe. Pelvic fin slightly pointed, 6 rays, 2 axillary scale distinct in largest specimens. Anal fin rays 3 simple, 10-11 branched rays, last one split to the base. Caudal fin with 10 + 9 principal rays, 9 + 8 branched. No lateral line pores. Predorsal scales 11-13 (Ref. 38434).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Kottelat, M. and K.E. Witte, 1999. Two new species of Microrasbora from Thailand and Myanmar, with two new generic names for small Southeast Asian cyprinid fishes (Teleostei: Cyprinidae). J. South Asian Nat. Hist. 4(1):49-56. (Ref. 38434)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 01 January 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
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Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance

Life cycle
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Maturity
Maturity/Gills rel.
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Eggs
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Larvae
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Distribution
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Anatomy
Gill area
Brain
Otolith

Physiology
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Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
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Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00977 (0.00422 - 0.02262), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.3 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Microdevario nanus (Kottelat & Witte, 1999)