Scientific Name
Selene brevoortii

Common Name
Hairfin lookdown

Biology
Body short, deep, and strongly compressed; lower branch of first gill arch with 29 to 34 gill rakers; dorsal fin with 8 spines followed by another spine and 20 to 23 soft rays (VIII+1,20-23); anterior lobes of second dorsal and anal fins very long in adults; anterior dorsal spines greatly prolonged in juveniles; body scaleless; lateral line scutes very weak and poorly differentiated; body golden or silvery with metallic blue highlights; juveniles yellowish, with indistinct, interrupted, dark, transverse bars (Ref. 55763).

Classification

Classified By

Gill, 1863

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Jacks and pompanos (Carangidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: southern tip of Baja California, Mexico to Ecuador.

Range

27°N - 18°S, 112°W - 70°W

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Marine; benthopelagic

Trophic Level

3.76 s.e. 0.62 Based on diet studies.

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

38.0 cm

Common Length

25.0 cm

Phylogenetic Diversity Index

PD50 = 0.5039 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; gamefish: yes

Vulnerability

Low to moderate vulnerability (32 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)