Scientific Name
Rastrelliger faughni

Common Name
Island mackerel

Biology
Dorsal spines (total): 8 - 11; Dorsal soft rays (total): 12; Anal spines: 0; Anal soft rays: 12; Vertebrae: 31. Head longer than body depth. Maxilla covered by lachrymal bone. Swim bladder present. Interpelvic process small and single. Anal spine rudimentary. Bristles on longest gill raker, 30 to 55 on one side. Gill rakers do not extend far into mouth. A black blotch behind pectoral fin base. The belly is yellowish silver; 2 to 6 large spots are at the base of the first dorsal fin; tow faint stripes are at the level of the lateral line in some specimens.

Classification

Classified By

Matsui, 1967

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Mackerels, tunas, bonitos (Scombridae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: India to Fiji, north to Taiwan.

Range

28°N - 19°S, 79°E - 170°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

150 m

Depth To - meters

Unknown m

Zone

pelagic-neritic

Environment

Marine; pelagic-neritic; oceanodromous (Ref. 51243); depth range 150 - ? m

Trophic Level

3.4 s.e. 0.45 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

20.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes

Vulnerability

Low vulnerability (11 of 100)

Resilience

High, minimum population doubling time less than 15 months (K=1.45)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated