Scientific Name
Hemilepidotus spinosus

Common Name
Brown Irish lord

Biology
Dorsal spines (total): 11; Dorsal soft rays (total): 18-20; Anal spines: 0; Anal soft rays: 14 - 16; Vertebrae: 35. Dorsal deeply notched between third and fourth spine, and between spinous and rayed portions; caudal rounded (Ref. 6885). Color brown, often tinged with red on dorsal surface, mottled and barred with 4 dark saddles over dorsal surface (Ref. 6885).

Classification

Classified By

Ayres, 1854

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Sculpins (Cottidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Puffin Bay, southeastern Alaska to Santa Barbara Island, southern California, USA.

Range

59°N - 32°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

780 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 780 m (Ref. 5515)

Trophic Level

3.5 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

29.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate to high vulnerability (47 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated