Scientific Name
Craterocephalus capreoli

Common Name
Rendahl's hardyhead

Biology
Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 6-8; Anal spines: 1; Anal soft rays: 7 - 10. Gill rakers short, with spinules, 1-13 on first lower gill arch. Anus very close to origin of fin. Second dorsal fin with I spine, 6-8 rays; anal fin with I spine and 7-10 rays. Midlateral scales 29-33.

Classification

Classified By

Rendahl, 1922

Class

Ray-finned fishes (Actinopterygii)

Order

Silversides (Atheriniformes)

Family

Silversides (Atherinidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: Abrolhos Islands, Western Australia to Gulf of Carpentaria, Northern Territory, 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

demersal

Environment

Marine; brackish; demersal

Trophic Level

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

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

8.5 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 (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