Pacific beardfish (Polymixia berndti) fish species and information / pictures of Pacific beardfish - Polymixia berndti

Pacific beardfish (Polymixia berndti) fish species information

Scientific Name
Polymixia berndti

Common Name
Pacific beardfish

Biology
Dorsal spines (total): 4 - 5; Dorsal soft rays (total): 28-31; Anal spines: 4; Anal soft rays: 14 - 16. Dusky greenish above, silvery below; caudal dusky (Ref. 6624).

Classification

Classified By

Gilbert, 1905

Class

Ray-finned fishes (Actinopterygii)

Order

Beardfishes (Polymixiiformes)

Family

Beardfishes (Polymixiidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: East Africa to the Hawaiian Islands, north to Japan, south to Australia.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

18 m

Depth To - meters

585 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 18 - 585 m (Ref. 58302)

Trophic Level

4.02 s.e. 0.67 Based on food items.

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

47.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5029 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of potential interest

Vulnerability

High to very high vulnerability (69 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated