Pacific blackchin (Scopelengys tristis) fish species and information / pictures of Pacific blackchin - Scopelengys tristis

Pacific blackchin (Scopelengys tristis) fish species information

Scientific Name
Scopelengys tristis

Common Name
Pacific blackchin

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 11-13; Anal spines: 0; Anal soft rays: 12 - 14. Uniform brown in color, mouth and belly darker (Ref. 6604). Branchiostegal rays: 8 (Ref. 36062). Lacks luminous organs and a gas bladder (Ref. 36062).

Classification

Classified By

Alcock, 1890

Class

Ray-finned fishes (Actinopterygii)

Order

Lanternfishes (Myctophiformes)

Family

Blackchins (Neoscopelidae)

Distribution

Region

Western Indian Ocean

Distribution

Western Indian Ocean: 6?N to 34?S. Probably Somalia (Ref. 30573). Western Pacific. Eastern Pacific: southern California, USA to Chile. Western Atlantic: off Venezuela (Ref. 6690) and Guianas (Ref. 13608). Eastern Atlantic: Morocco to Angola; one record from South Africa (Ref. 6604). South China Sea and East China Sea (Ref.74511).

Range

35°N - 35°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

400 m

Depth To - meters

1830 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 400 - 1830 m (Ref. 58018)

Trophic Level

3.1 s.e. 0.30 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

20.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7656 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low to moderate vulnerability (27 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated