Munro's hardyhead (Craterocephalus munroi) fish species and information / pictures of Munro's hardyhead - Craterocephalus munroi

Munro's hardyhead (Craterocephalus munroi) fish species information

Scientific Name
Craterocephalus munroi

Common Name
Munro's hardyhead

Biology
Dorsal spines (total): 6 - 8; Dorsal soft rays (total): 5-7; Anal spines: 1; Anal soft rays: 6 - 7. Gill rakers (10 to 12) with small spinules, short, stumpy, less than half diameter of pupil. Anus from 0 to 2 scales behind tips of ventrals. Origin of first dorsal fin from 4-6 scales in front of vertical through tips of ventral fins. Second dorsal fin with I spine and 5-7 rays; anal fin with I spine and 6-7 rays. Midlateral scale count 26-29.

Classification

Classified By

Crowley & Ivantsoff, 1988

Class

Ray-finned fishes (Actinopterygii)

Order

Silversides (Atheriniformes)

Family

Silversides (Atherinidae)

Distribution

Region

Australia

Distribution

Australia: Bynoe, Nicholson, and Norman Rivers in the lower Gulf of Carpentaria.

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; brackish; 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

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

5.0 cm

Common Length

Unknown 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

Fisheries: of no interest

Vulnerability

Low vulnerability (12 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