Actinopterygii (ray-finned fishes) > Clupeiformes
(Herrings) > Clupeidae
(Herrings, shads, sardines, menhadens) > Ehiravinae
Etymology: Sauvagella: Because of Sauvage, 1860-1880 and 1875-1891; ichtyologist that studied the Ogowe; author of "Histoire naturelle des poissons de Madagascar"; robusta: From the deep body of the species.
Environment / Climate / Range
Freshwater; pelagic; pH range: ? - 8.3. Tropical, preferred ?
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL male/unsexed; (Ref. 33664)
Specimens collected from a small left bank tributary of the Mangarahara River (Sofia River drainage), the Ambomboa River (= Amboaboa). Occurs over rock and sand bed with numerous small rapids alternating with quieter pools. Although the Ambomboa and Mangarahara populations currently appear healthy, the apparent restricted distribution combined with ongoing deforestation and erosional siltation within the river basin will inevitably increase stress on the habitat rendering the species vulnerable to future decline (Ref. 33664).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stiassny, M.L.J., 2002. Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehiravini) with a description of a new species from the freshwaters of Madagascar and diagnosis of Ehiravini. Copeia 2002(1):67-76. (Ref. 33664)
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
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.3 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 (10 of 100) .