Scientific Name
Craterocephalus stercusmuscarum stercusmuscarum

Common Name
Fly-specked hardyhead

Biology
Occurs in rivers, small streams, lakes, ponds, reservoirs and warm springs.

Classification

Classified By

G?nther, 1867

Class

Ray-finned fishes (Actinopterygii)

Order

Silversides (Atheriniformes)

Family

Silversides (Atherinidae)

Distribution

Region

Oceania

Distribution

Oceania: northern and eastern Australia and southern New Guinea.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

24 °C

Water Temperature To

30 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 6.0 - 6.5; dH range: 5 - 10 benthopelagic; potamodromous (Ref. 51243)

Trophic Level

3.2 s.e. 0.40 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

7.0 cm

Common Length

5.5 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (19 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