Murchison river hardyhead (Craterocephalus cuneiceps) fish species and information / pictures of Murchison river hardyhead - Craterocephalus cuneiceps

Murchison river hardyhead (Craterocephalus cuneiceps) fish species information

Scientific Name
Craterocephalus cuneiceps

Common Name
Murchison river hardyhead

Biology
Inhabits slow-flowing streams or still, isolated pools in either clear or turbid conditions. Can tolerate marine conditions and temperatures well above 30? C. Can live in water where salinity levels twice that of sea water. An extremely hardy species capable of surviving hypersaline conditions and a wide temperature range. Its tolerance to salinity is much higher than that of most other fishes. The omnivorous diet includes small invertebrates and plant material (Ref. 44894).

Classification

Classified By

Whitley, 1944

Class

Ray-finned fishes (Actinopterygii)

Order

Silversides (Atheriniformes)

Family

Silversides (Atherinidae)

Distribution

Region

Oceania

Distribution

Oceania: endemic to Australia.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

2.99 s.e. 0.39 Based on size and trophs of closest relatives

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

8.5 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 (23 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