Small-mouth hardyhead (Atherinosoma microstoma) fish species and information / pictures of Small-mouth hardyhead - Atherinosoma microstoma

Small-mouth hardyhead (Atherinosoma microstoma) fish species information

Scientific Name
Atherinosoma microstoma

Common Name
Small-mouth hardyhead

Biology
Found in shallow coastal bays, estuaries and lakes ranging from pure fresh to salinities in excess of seawater (Ref. 9002). 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 (Ref. 44894).

Classification

Classified By
G?nther, 1861
Class
Ray-finned fishes (Actinopterygii)
Order
Silversides (Atheriniformes)
Family
Silversides (Atherinidae)

Distribution

Region
Southwest Pacific
Distribution
Southwest Pacific: endemic to Australia.
Range
33°S - 40°S

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
8 m
Zone
pelagic-neritic
Environment
Marine; freshwater; brackish; pelagic-neritic; anadromous (Ref. 51243); depth range 0 - 8 m (Ref. 57178)
Trophic Level
3.21 s.e. 0.43 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
10.7 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low to moderate vulnerability (27 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated