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