Madagascar country information

Common names: Madagascar round herring, Sprat de Madagascar, Varilava
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: of no interest | Ref: Stiassny, M.L.J., 2002
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the syntypes of Spratelloides madagascariensis, more specifically the holotype of Sauvagella madagascariensis longianalis and the holotype of Sauvagella madagascariensis brevidorsalis: 'Madagascar' (Ref. 42522, 94656). Known from mid and lower reaches of eastern coastal drainages (Ref. 33664, 56151, 56161) and Pangalanes Canal network (Ref. 13296, 33664), from Manajary River in the south to Manamara River in the north (Ref. 33664), including Mangoro River (Ref. 26236), Lake Tampolo (Ref. 33664), Maningory River (Ref. 33664) and Lokoho River (Ref. 33664). More extensive sampling will no doubt extend that range (Ref. 33664). Also reported from Lake Kinkony (Ref. 13296), but its presence in the northwest of Madagascar is unconfirmed (Ref. 33664). Also Ref. 188, 3509, 9391, 13333, 43240, 94656, 117496, 117576.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ma.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Sparks, J.S. and M.L.J. Stiassny, 2003
National Database:

Common names from other countries

Sprat de Madagascar, Espadin de Madagascar, Sprat de Madagascar, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Clupeiformes (Herrings) > Ehiravidae (River sprats)
Etymology: Sauvagella: Because of Sauvage, 1860-1880 and 1875-1891; ichtyologist that studied the Ogowe; author of "Histoire naturelle des poissons de Madagascar"; madagascariensis: Named for the island to which it is endemic, Madagascar (Ref. 33664).
More on author: Sauvage.

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

Freshwater; brackish; pelagic. Tropical; 11°S - 26°S, 42°E - 50°E (Ref. 188)

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

Africa: mid and lower reaches of eastern coastal rivers and Pangalanes Canal network in Madagascar (Ref. 188, 33664).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.6 cm SL male/unsexed; (Ref. 33664)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 13-17; Anal spines: 0; Anal soft rays: 17 - 19; Vertebrae: 41 - 43. Diagnosis: Body elongate, a little compressed; belly rounded, without pre-pelvic scutes, but a pelvic scute present with slender lateral arms; gillrakers few, 17-20 gillrakers on lower limb of first arch; pelvic fin with 1 unbranched and 7 branched finrays, a little anterior to dorsal fin origin; last two anal finrays not separate from others (Ref. 188, 33664). It is distinguished from other non-scuted clupeids of Spratelloides, Dussumieria and Etrumeus by presence of a normal pelvic scute vs. W-shaped (Ref. 188). It is distinguished from Sauvagella robusta by a higher vertebral number, 41-43 vs. 38-40; a shallower body, 15.8-21.1% of standard length vs. 20.8-27.4%; a longer snout, 26.2-33.7% of head length vs. 18.5-26.6%; and a higher anal fin ray count, 17-19 vs. 13-17 (Ref. 33664).

Found in freshwaters, possibly tolerating brackish water (Ref. 188); from sea level to about 450m, mostly in smaller rivers and streams and usually in forested areas (Ref. 56161). Probably planktivorous (Ref. 56161).

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

Main reference Upload your references | References | Coordinator | Collaborators

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 the Ehiravini. Copeia 2002(1):67-76. (Ref. 33664)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 29 June 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00365 - 0.02081), b=3.02 (2.81 - 3.23), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±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).

Sauvagella madagascariensis (Sauvage, 1883)