Scientific Name
Lycodes diapterus

Common Name
Black eelpout

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 109-118; Anal spines: 0; Anal soft rays: 99 - 109; Vertebrae: 118 - 126. This species is distinguished by the following: with scales covering the nape and the entire postorbital dorsal surface of the head (in adults 15.0 cm SL and larger): it differs from L. beringi in having higher counts of dorsal-fin ray (usually 111 or more), anal-fin ray (usually 100 or more), vertebral (usually 119 or more), and gill raker (usually 15 or more); differs from L. hubbsi in having 19-21 pectoral-fin rays (vs. 20-23), position of the first dorsal-fin pterygiophore at the sixth or seventh interneural gap (vs. third), and color pattern, for it lacks narrow light bands extending onto dorsal fin and across nape; differs from the 'L. nakamurae group?? (nakamurae, pectoralis, nishimurai) in having 4 postorbital pores (vs. 1 or 2), the posteriormost without a short tube; lower pectoral-fin lobe rounded, the tips of the rays rounded and th

Classification

Classified By

Gilbert, 1892

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Eelpouts (Zoarcidae)

Distribution

Region

North Pacific

Distribution

North Pacific: Southern California west of the Channel Islands north along the North American coast to the Pacific side of Vancouver Island; apparently not present in the Strait of Georgia or Puget Sound, and has been reported as far south as San Diego.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

146 m

Depth To - meters

844 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 146 - 844 m (Ref. 80505), usually 300 - 600 m (Ref. 80505)

Trophic Level

3.4 s.e. 0.44 Based on size and trophs of closest relatives

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

33.0 cm

Common Length

Unknown 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

Fisheries: subsistence fisheries

Vulnerability

Moderate vulnerability (40 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