Scientific Name
Thamnaconus arenaceus

Common Name
Sandy filefish

Biology
Dorsal spines (total): 2; Dorsal soft rays (total): 31-32; Anal spines: 0; Anal soft rays: 30 - 31. Preserved specimens brown with darker spots; dark brown ring around anus; soft dorsal, anal and pectoral fins pale; caudal fin dusky (Ref. 4421).

Classification

Classified By

Barnard, 1927

Class

Ray-finned fishes (Actinopterygii)

Order

Puffers and Filefishes (Tetraodontiformes)

Family

Filefishes (Monacanthidae)

Distribution

Region

Western Indian Ocean

Distribution

Western Indian Ocean: known only from 3 specimens, 1 possibly from Natal, South Africa and 2 from Madagascar.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; demersal

Trophic Level

3.37 s.e. 0.44 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

23.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5001 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (31 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated