Sauvagella robusta, Amboaboa round herring : fisheries

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Sauvagella robusta Stiassny 2002

Amboaboa round herring
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Sauvagella robusta
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (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: Named in reference to the deep body of the species, which is evident even in the juvenile specimens (Ref. 33664).

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

Freshwater; pelagic; pH range: ? - 8.3.   Tropical

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

Africa: Sofia River drainage in Madagascar (Ref. 33664, 121308).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL male/unsexed; (Ref. 33664)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 11-15; Anal spines: 0; Anal soft rays: 13 - 17; Vertebrae: 38 - 40. Diagnosis: Body relatively elongate; belly rounded, without pre-pelvic scutes, but a pelvic scute present with slender lateral arms; gillrakers reduced in number, 15-19 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. 33664). It is distinguished from Sauvagella madagascariensis by lower vertebral number, 38-40 vs. 41-43; deeper body, 20.8-27.4% of standard length vs. 15.8-21.1%; a shorter snout, 18.5-26.6% of head length vs. 26.2-33.7%; and a lower anal fin ray count, 13-17 vs. 17-19 (Ref. 33664).

Biology     Glossary (e.g. epibenthic)

Found in a river flowing over a rock and sand bed and forming numerous small rapids alternating with quieter pools (Ref. 33664). The apparently restricted distribution of this species combined with ongoing deforestation and erosional situation 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

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. 123251)

  Endangered (EN) (B2ab(iii)); Date assessed: 29 June 2016

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries:
FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishipedia | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00167 - 0.01091), b=3.06 (2.83 - 3.29), 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.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Price category (Ref. 80766):   Low.