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Ramnogaster melanostoma (Eigenmann, 1907)

Uruguay river sprat
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Image of Ramnogaster melanostoma (Uruguay river sprat)
Ramnogaster melanostoma
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Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens)
Etymology: Ramnogaster: Greek, rhamnos, -on = blackberry + Greek, gaster = stomach.
More on author: Eigenmann.

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

; zoet water pelagisch. Subtropical; 31°S - 38°S

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

South America: Uruguay and Argentina.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL mannelijk / geslacht onbekend; (Ref. 188)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 15 - 16; Anale stekels: 0; Anale zachte stralen: 12 - 23. Belly sharply keeled. No distinct silver stripe along the flank and the first (anterior) supra-maxilla minute or absent (cf. Platanichthys platana). Distinguished from very similar R. arcuata of coastal waters by having fewer dorsal and pectoral fin rays and fewer gill rakers total; from small Sardinella and Harengula by the evenly rounded hind margin of the gill opening.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Apparently confined to freshwater at mouths of rivers and their lower reaches. Presumably schooling.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)

  Niet bedreigd (LC) ; Date assessed: 14 October 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: visserij voor eigen gebruik
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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00339 - 0.01349), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.1   ±0.1 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Prijsklasse (Ref. 80766):   Low.