Scientific Name
Scorpaenopsis insperatus

Common Name
Sydney scorpionfish

Biology
Dorsal spines (total): 12; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 5; Vertebrae: 24. No median interorbital ridge; well-developed interorbital ridges conjoined at anterior edge of occipital pit; upper opercular and posterior lacrimal spines simple, not divided; 30-34 longitudinal scale rows; 3 suborbital spines; fifth dorsal fin spine longest; large orbit diameter (5.4-5.6 in HL); short snout length (3.7-3.9 in HL) less than orbit diameter; narrow interorbital width (5.4-5.6 in HL) less than orbit diameter; narrow space between ventral margin of eye and suborbital ridge.

Classification

Classified By

Motomura, 2004

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Scorpionfishes or rockfishes (Scorpaenidae)

Distribution

Region

Southwestern Pacific

Distribution

Southwestern Pacific: known only from 2 specimens collected at Chowder Bay, Sydney Harbour, Australia.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

14 m

Depth To - meters

14 m

Zone

demersal

Environment

Marine; demersal; non-migratory; depth range 14 - 14 m (Ref. 58018)

Trophic Level

3.51 s.e. 0.61 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

4.9 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

Unknown

Vulnerability

Low vulnerability (22 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