Actinopterygii (ray-finned fishes) > Atheriniformes
(Silversides) > Bedotiidae
Etymology: Bedotia: After Maurice Bedot, 1859-1927; born in Geneva, systematist on Hydrozoan. More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic. Tropical
Africa: lower reaches of Ivoloina River to at least as far south as Manambolo Creek which drains into the Lakendrano Mpangalana 10 km south of the town of Vatomandry, Madagascar (Ref. 76768). Following translocation to marshes near the village of Mahitsy (just outside of Antananarivo) in the 1950's, at present apparently also widely established in the Betsiboka basin (Ref. 76768).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.6 cm SL male/unsexed; (Ref. 76768)
Inhabits clear, well-shaded streams at altitudes up to 30 meters above sea level; prefers slow-flowing sections; observed in loose, size-graded associations up to several dozen of individuals; juveniles usually found in the shallows, adults frequent deeper waters (Ref. 76768).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Loiselle, P.V. and D. Rodriguez, 2007. A new species of Bedotia (Teleostei: Atherinomorpha: Bedotiidae) from the Rianila drainage of eastern Madagascar, with redescriptions of Bedotia madagascariensis and Bedotia geayi. Zootaxa 1520:1-18. (Ref. 76768)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [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
): 2.6 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .