Black oreo (Allocyttus niger) fish species and information / pictures of Black oreo - Allocyttus niger

Black oreo (Allocyttus niger) fish species information

Scientific Name
Allocyttus niger

Common Name
Black oreo

Biology
Found close to the sea bed in deep water. Form large shoals over rough ground near pinnacles and canyons. Juveniles are pelagic and inhabit oceanic waters. They tend to be dispersed over smooth grounds (Ref. 6390). Feed mainly on salps and benthic crustaceans (Ref. 27150). Eggs float near the sea surface and larvae also inhabit surface waters (Ref. 6390). Based on trawl catch rates, there is no evidence of vertical migration during day or night (Ref. 27150).

Classification

Classified By

James, Inada & Nakamura, 1988

Class

Ray-finned fishes (Actinopterygii)

Order

Dories (Zeiformes)

Family

Oreos (Oreosomatidae)

Distribution

Region

Southwest Pacific

Distribution

Southwest Pacific: New Zealand and Australian waters south of 43?S (Ref. 27159). Also Ref. 26139.

Range

43°S - 55°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

560 m

Depth To - meters

1300 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 560 - 1300 m (Ref. 6390)

Trophic Level

3.38 s.e. 0.50 Based on food items.

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

47.0 cm

Common Length

35.0 cm

Phylogenetic Diversity Index

PD50 = 0.5635 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial

Vulnerability

High to very high vulnerability (69 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (tmax=100; tm=27; Fec >5,000)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated