Madagascar round herring

📖 Overview

Found in freshwaters, possibly tolerating brackish water ; from sea level to about 450m, mostly in smaller rivers and streams and usually in forested areas . Probably planktivorous .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 13 - 17; Anal spines: 0; Anal soft rays: 17 - 19; Vertebrae: 41 - 43. Diagnosis: Body elongate, a little compressed; belly rounded, without pre-pelvic scutes, but a pelvic scute present with slender lateral arms; gillrakers few, 17-20 gillrakers on lower limb of first arch; pelvic fin with 1 unbranched and 7 branched finrays, a little anterior to dorsal fin origin; last two anal finrays not separate from others . It is distinguished from other non-scuted clupeids of Spratelloides, Dussumieria and Etrumeus by presence of a normal pelvic scute vs. W-shaped . It is distinguished from Sauvagella robusta by a higher vertebral number, 41-43 vs. 38-40; a shallower body, 15.8-21.1% of standard length vs. 20.8-27.4%; a longer snout, 26.2-33.7% of head length vs. 18.5-26.6%; and a higher anal fin ray count, 17-19 vs. 13-17 . : fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Madagascar round herring is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; brackish; pelagic. Tropical; 11°S - 26°S, 42°E - 50°E

🌿 Ecology

📐 Morphometrics

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 16 records indexed .

👥 Community & Contribute