Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Eleotridae
(Bully sleepers) > Eleotrinae
Etymology: Ratsirakia: Perhaps it is an extinct fish today; following "Aquatic Survival", vol 4, 3, september 95.
More on author: Pellegrin.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Africa: endemic to Madagascar.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 6802)
Occurs strictly in freshwaters of highlands and oriental versant (Ref. 6802).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maugé, L.A., 1986. Eleotridae. p. 389-398. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MARC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 6802)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 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).