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Ramnogaster arcuata (Jenyns, 1842)

Jenyns's sprat
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Ramnogaster arcuata   AquaMaps   Data sources: GBIF OBIS
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Image of Ramnogaster arcuata (Jenyns\
Ramnogaster arcuata
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

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

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

Marine; pelagic-neritic; depth range 0 - 50 m (Ref. 188). Subtropical; 33°S - 42°S, 64°W - 52°W (Ref. 188)

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

Southwest Atlantic: southern Brazil (estuary of the Lagoa dos Patos) and Uruguay to at least Bahía Blanca, Argentina; some of the more southerly records (even to the Beagle Channel) must refer to Sprattus fuegensis.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref. 188); common length : 7.5 cm SL male/unsexed; (Ref. 188)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 18 - 19; Anal spines: 0; Anal soft rays: 12 - 23. Belly sharply keeled. Flanks silvery without a distinct silver stripe (cf. Platanichthys). Distinguished from R. melanostoma of freshwaters by having more dorsal and pectoral fin rays and total gill rakers; from small Sardinella and Harengula by the evenly rounded hind margin of the gill opening; and from Sprattus fuegensis by having i 6 pelvic fin rays.

Biology     Glossary (e.g. epibenthic)

Forms schools in coastal waters, apparently inshore but not entering freshwater.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 06 March 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial
FAO - Publication: search | FishSource |

More information

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 11.7 - 18.3, mean 15.7 °C (based on 74 cells).
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).
Trophic level (Ref. 69278):  3.1   ±0.1 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).
Price category (Ref. 80766):   Low.