Freshwater Herring, Potamalosa richmondia (Macleay 1879)


Other Names: Australian Freshwater Herring, Nepean Herring

Freshwater Herring, Potamalosa richmondia. Source: Rudie H. Kuiter / Aquatic Photographics. License: All rights reserved

Summary:
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Cite this page as:
Gomon 2010, Potamalosa richmondia in Fishes of Australia, accessed 16 Nov 2018, http://fishesofaustralia.net.au/home/species/2063

Freshwater Herring, Potamalosa richmondia (Macleay 1879)

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Distribution

Known only from Richmond River, NSW (28°50’S) to Mallacoota, VIC; temperate; pelagic; usually inhabiting clear, moderately flowing rivers and streams but also found in sluggish lowland rivers, estuaries and possibly also in marine waters.

Features

D 15-18; A 15-17; P 15-19; V 8
Slender, compressed body; ventral profile convex, dorsal profile somewhat flattened; head moderately sized; snout elongate and rounded; eye large, positioned near dorsal profile; mouth terminal, upturned; lower jaw protruding, large; gape extending to about level of middle of eye; jaws toothless
Head and operculum scaleless; body covered with moderately large, thin, cycloid scales; scales form sharp, serrated dorsal ridge anterior to dorsal fin; ventral ridge also present; lateral line absent.
Single, short-based, triangular, pointed dorsal fin; anal fin small and low; pectoral fins elongate, pointed, positioned low on sides; ventral fins small, pointed, situated on abdomen; caudal fin well developed, deeply forked, lobes pointed.

Size

Maximum size about 32 cm, commonly to 15 cm.

Colour

Usually silvery overall, with a greenish tinge (especially dorsally), and 2 indistinct longitudinal stripes below the mid-line. Fins colourless to yellowish.

Feeding

Feeds primarily on worms, small crustaceans and insects.

Biology

Little is known of the reproductive biology of this species. Likely to be an oviparous pelagic spawner.

Remarks

Fast-moving, schooling fish. Little is known of the biology of this species, although it may have a catadromous life cycle. Downstream migration to estuaries, presumably for spawning has been reported in winter months (July-August).

Species Citation

Clupea richmondia Macleay W.J. (1879). On the Clupeidae of Australia. Proc. Linn. Soc. N.S.W. (1)4(3): 363-385. Richmond River, NSW.

Author

Gomon 2010

Freshwater Herring, Potamalosa richmondia (Macleay 1879)

References


Allen, G. R. , H. Midgley, and M. Allen 2002 Field guide to the freshwater fishes of Australia. Field guide to the freshwater fishes of Australia.: I-xiv + 1-394.

Paxton, J. R. , D. F. Hoese, G. R. Allen and J. E. Hanley 1989 Zoological Catalogue of Australia. Volume 7. Pisces. Petromyzontidae to Carangidae. Australian Government Publishing Service, Canberra. Zoological Catalogue of Australia. Volume 7. v. 7: i-xii + 1-665.

Cadwallader, P.L. and G.N. Backhouse 1983 A guide to the freshwater fish of Victoria. Government Printers. Melbourne. 249 p.

Merrick, J.R. and G.E. Schmida 1984 Australian freshwater fishes: biology and management. Griffin Press Ltd., South Australia. 409 p.

Quick Facts


CAAB Code:37085027

Habitat:freshwater rivers and estuaries

Max Size:32 cm

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