Jenyns's sprat

📖 Overview

Jenyns's sprat (Ramnogaster arcuata), first described by Jenyns, 1842 is a small fish in the family Clupeidae (order Clupeiformes). Adults typically reach 9.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 50 metres. It occurs in Subtropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. The species schools in loose to tight aggregations. On the IUCN Red List, it is classified as Least Concern.

🔬 Taxonomy

🐟 Physical 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.: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Jenyns's sprat is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

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

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🌐 Names & Taxonomy

Scientific Synonyms

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

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