Blackbar filefish (Pervagor janthinosoma) fish species and information / pictures of Blackbar filefish - Pervagor janthinosoma

Blackbar filefish (Pervagor janthinosoma) fish species information

Scientific Name
Pervagor janthinosoma

Common Name
Blackbar filefish

Biology
Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 29-34; Anal spines: 0; Anal soft rays: 26 - 30. Body and head color variable. Blackish to dark bluish branchial blotch extending dorsally to level well above the lower margin of eye and may include ventrally the pectoral fin base and axil. Iris usually dark brown. Orange to red caudal fin soft dorsal and anal fins clear, orange or yellow with spots; pectorals clear. Scale spinulation at midbody closely packed. Male scale ridge rugosities develop at about 80 mm SL developed. Strong first dorsal spine. Large pelvic fin rudiment narrowly attached to posterior margin of ventral flap.

Classification

Classified By

Bleeker, 1854

Class

Ray-finned fishes (Actinopterygii)

Order

Puffers and Filefishes (Tetraodontiformes)

Family

Filefishes (Monacanthidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: East Africa to Samoa, north to southern Japan, south to New South Wales and Tonga.

Range

35°N - 35°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

8 m

Depth To - meters

20 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 8 - 20 m (Ref. 9710)

Trophic Level

2.88 s.e. 0.40 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

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

13.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5039 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 (28 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