Ramnogaster arcuata (Jenyns, 1842)

Jenyns's sprat

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

Classification	Actinopterygii \| Clupeiformes \| Clupeidae
Synonyms	Clupea arcuata, Spratella arcuata, ... more
Common names	Sardinelle de la Plata, Sardinela del Plata, Sardina, ... more

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Main reference

Whitehead, P.J.P. 1985. (Ref. 188)
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Size / Weight / Age

Max length : 9.0 cm SL male/unsexed; (Ref. 188); common length : 7.5 cm SL male/unsexed; (Ref. 188)

Environment

Pelagic-neritic; marine; depth range 0 - 50 m (Ref. 188)

Climate / Range

Subtropical; 33°S - 42°S, 64°W - 52°W (Ref. 188)

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.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

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.

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


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

Human uses
Fisheries: minor commercial


More information
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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 (12 of 100)	Low

Entered by Binohlan, Crispina B.

Modified by Kesner-Reyes, Kathleen

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Page last modified by : elaxamana, 15 July 2009

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