Ramnogaster melanostoma (Eigenmann, 1907)

Uruguay river sprat

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Clupeiformes \| Clupeidae
Synonyms	Pomolobus melanostomus, Clupea melanostoma, Spratella melanostoma, ... more
Common names	Mandufia, Sleděc černoústý, Uruguay-flodbrisling, ... more

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Image of Ramnogaster melanostoma (Uruguay river sprat)

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Main reference

Whitehead, P.J.P. 1985. (Ref. 188)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 10.0 cm SL male/unsexed; (Ref. 188)

Environment

Pelagic; freshwater

Climate / Range

Subtropical; 31°S - 38°S

South America: Uruguay and Argentina.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 15 - 16; Anal spines: 0; Anal soft rays: 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.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: subsistence fisheries


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (13 of 100)	Low

Entered by Binohlan, Crispina B.

Modified by Tapia, Carolina

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Page last modified by : elaxamana, 15 July 2009

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