Scientific Name
Icelus bicornis

Common Name
Twohorn sculpin

Biology
Dorsal spines (total): 7 - 10; Dorsal soft rays (total): 17-23; Anal spines: 0; Anal soft rays: 12 - 17. Yellowish with brown spots, most numerous on back; narrow stripes on soft dorsal, pectoral and caudal fins, with dark spots on fin rays (Ref. 4698). Head height equal to head width. Males with a long pointed genital papilla (Ref. 35388).

Classification

Classified By

Reinhardt, 1840

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Sculpins (Cottidae)

Distribution

Region

Western Atlantic

Distribution

Western Atlantic: Canadian Arctic to Hudson and Ungava bays and Newfoundland in Canada. Eastern Atlantic: Greenland, Iceland, Jan Mayen, Spitzbergen, Barents and Kara seas, Bohusl?n in Norway (Ref. 4926). Reported from the Alaskan Beaufort Sea (Ref. 28503).

Range

84°N - 51°N, 180°W - 180°E

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

930 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 930 m (Ref. 58496)

Trophic Level

3.13 s.e. 0.35 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

15.7 cm

Common Length

12 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate vulnerability (39 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated