Prince Regent hardyhead (Craterocephalus lentiginosus) fish species and information / pictures of Prince Regent hardyhead - Craterocephalus lentiginosus

Prince Regent hardyhead (Craterocephalus lentiginosus) fish species information

Scientific Name
Craterocephalus lentiginosus

Common Name
Prince Regent hardyhead

Biology
Inhabits clear flowing streams over rocky bottoms. Occurs in still or flowing streams over sandy, muddy or rocky bottoms. Collections have also been made from small isolated brackish pools on the tidal flats, in turbid water. A solitary specimen of a similar species, which may prove to be new to science, was recently collected near Rum Jungle (Northern Territory) (Ref. 44894).

Classification

Classified By

Ivantsoff, Crowley & Allen, 1987

Class

Ray-finned fishes (Actinopterygii)

Order

Silversides (Atheriniformes)

Family

Silversides (Atherinidae)

Distribution

Region

Oceania

Distribution

Oceania: known only from the Upper Roe River and Wyulda Creek (a tributary), both within the Prince Regent Reserve, northwest Kimberley area, Western Australia.

Range

17°S - 18°S

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

8.0 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 (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

Lower Risk: near threatened (LR/nt)