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> 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 Écologie

; eau douce pélagique. Subtropical; 31°S - 38°S

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South America: Uruguay and Argentina.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 10.0 cm SL mâle / non sexé; (Ref. 188)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 15 - 16; Épines anales: 0; Rayons mous anaux: 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.

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

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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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 14 October 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: pêcheries vivrières

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=0.00708 (0.00349 - 0.01438), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.1 ±0.1 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Catégorie de prix (Ref. 80766): Low.

Ramnogaster melanostoma (Eigenmann, 1907)