Scientific Name
Arius arius

Common Name
Threadfin sea catfish

Biology
Dorsal spines (total): 1; Anal soft rays: 17 - 22. Head shield smooth anteriorly with a series of granules and rugae posteriorly. Adipose fin with a large black spot. Lateral line bifurcating at the base of tail. Gill rakers present on the hind aspect of all gill arches. Dorsal spine with a filament at its tip. Moderately deep caudal peduncle, 1.5 to 2.1 (mean 1.8) in its depth. (Ref. 38478).

Classification

Classified By

Hamilton, 1822

Class

Ray-finned fishes (Actinopterygii)

Order

Catfish (Siluriformes)

Family

Sea catfishes (Ariidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: India through neighboring coastal states (Pakistan, India, Bangladesh and Myanmar, Ref. 4833) to Singapore, South China Sea.

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; amphidromous (Ref. 51243)

Trophic Level

3.5 s.e. 0.37 Based on food items.

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

40.0 cm

Common Length

15.0 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: commercial

Vulnerability

Moderate to high vulnerability (50 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Traumatogenic (Ref. 58010)

IUCN Red List Status

Not Evaluated