Arctic flounder (Liopsetta glacialis) fish species and information / pictures of Arctic flounder - Liopsetta glacialis

Arctic flounder (Liopsetta glacialis) fish species information

Scientific Name
Liopsetta glacialis

Common Name
Arctic flounder

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 50-62; Anal spines: 1; Anal soft rays: 35 - 44; Vertebrae: 37 - 38. Distinguished by the presence of both eyes on the same side of the head, normal scales and generally plain coloration (Ref. 27547). Lateral line with a very low curve above pectoral fin, straight behind and with a short accessory branch on head; 73-76 pores on main portion; it is complete in males but in females as large as about 20 cm it is an open groove on the posterior part of the body (Ref. 10319). Most anterior dorsal ray above eye; anal with an embedded forward-pointing spine before first ray; caudal rounded (Ref. 27547). Eyed side dark olive green to brown, sometimes with scattered black dots or indefinite dark blotches; blind side white, rarely with brown lappings over from the eyed side; fins pale brownish, sometimes with a somewhat yellow tinge or traces of dark spots (Ref. 27547).

Classification

Classified By

Pallas, 1776

Class

Ray-finned fishes (Actinopterygii)

Order

Flatfishes (Pleuronectiformes)

Family

Righteye flounders (Pleuronectidae)

Distribution

Region

Northeast Atlantic and Arctic

Distribution

Northeast Atlantic and Arctic: White Sea and Barents Sea eastward along the coasts of Siberia and North America to Queen Maud Gulf in Arctic Canada. North Pacific: Chukchi and Bering seas to Bristol Bay, Alaska and the northern Sea of Okhotsk.

Range

Unknown

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

90 m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; depth range 0 - 90 m (Ref. 50550)

Trophic Level

3.21 s.e. 0.44 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

35.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

High vulnerability (65 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=2; Fec=31,000-230,000)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)