Small-mouth hardyhead (Atherinosoma microstoma)

Scientific name: Atherinosoma microstoma G?nther, 1861

The Small-mouth hardyhead (Atherinosoma microstoma) is a freshwater fish of the family Atherinidae. Native range: Southwest Pacific, endemic to Australia.

Biology

Found in shallow coastal bays, estuaries and lakes ranging from pure fresh to salinities in excess of seawater. Occurs abundantly in in estuaries around eel-grass thickets, occasionally penetrating the lower freshwater reaches of rivers. Feeds on tiny crustaceans and insects. Breeds in spring (September to October). An annual species (living for only one year), dying shortly after spawning.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Atherinosoma microstoma
Family
Atherinidae (Silversides)
Order
Atheriniformes (Silversides)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
10.7
Depth range
0–8 m (0–26 ft)
Environment
Marine; freshwater; brackish; pelagic-neritic; anadromous; depth range 0 - 8 m
Climate
Temperate
Distribution
Southwest Pacific: endemic to Australia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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