Scientific Name
Rexea antefurcata

Common Name
Long-finned escolar

Biology
Dorsal spines (total): 19 - 20; Dorsal soft rays (total): 15-17; Anal spines: 2; Anal soft rays: 12 - 14; Vertebrae: 34. Most of the body is naked except for the wedge-shaped stripe of squamation extending forward from the caudal peduncle along the horizontal part of the lower lateral line and a few scales along the posterior part of the upper lateral line. Pyloric caeca 8 to 10. Pelvic fins entirely absent at over 25 cm SL. Body color is grayish or brownish with metallic tint; fins blackish or gray.

Classification

Classified By

Parin, 1989

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Snake mackerels (Gempylidae)

Distribution

Region

Southeast Pacific

Distribution

Southeast Pacific: seamounts of Nazca and Sala y Gomez Ridges and at Easter Island. Southwest Pacific: Tasman Sea (from 23? to 37?S along east coast of Australia and on seamounts), and from southern Fiji.

Range

13°S - 40°S, 150°E - 83°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

80 m

Depth To - meters

800 m

Zone

benthopelagic

Environment

Marine; benthopelagic; depth range 80 - 800 m (Ref. 33346)

Trophic Level

4.42 s.e. 0.74 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

72.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5078 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 to high vulnerability (54 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