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Image of Australian freshwater herring
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Australian Freshwater Herring

Potamalosa richmondia (Macleay 1879)

Diagnostic Description

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Body fairly elongate, belly keeled, with 16 to 18 + 14 or 15 scutes; about 14 dorsal scutes with low keel from head to dorsal fin origin. Minute or no teeth in jaws; second supra-maxilla slender. Branchiostegal rays 8. Anal fin origin far behind dorsal fin base. Juveniles resemble Hyperlophus, which has a deeper second supra-maxilla, only 4 branchiostegal rays and i 6 pelvic fin rays.
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Recorder
Crispina B. Binohlan
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Migration

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Catadromous. Migrating from freshwater to the sea to spawn, e.g., European eels. Subdivision of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.
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Crispina B. Binohlan
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Morphology

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Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 18; Analspines: 0; Analsoft rays: 16 - 27
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Crispina B. Binohlan
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Trophic Strategy

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Seems to be diadromous (Ref. 5259). Feeds on benthic organisms (Ref. 188).
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Crispina B. Binohlan
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Biology

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It occurs in clear, moderately fast-flowing streams, as well as in quiet backwaters, estuaries, and in the sea ( Ref. 5259, 44894). Also found in sluggish lowland rivers (Ref. 44894). A schooling species and appears diadromous. A fast swimming, shoal-forming species. Nothing much is known of its biology, although it may have a catadromous life cycle. Downstream migration to estuaries, presumably for spawning, has been reported in winter months (July-August). Feeds on worms, small crustaceans and insects (Ref. 44894). Breeds in estuaries in July to August. Taken in nets during the spawning season; will also take bait.
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Recorder
Crispina B. Binohlan
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Importance

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fisheries: subsistence fisheries
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Recorder
Crispina B. Binohlan
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