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Pacific jack mackerel (Trachurus symmetricus) fish species and information / pictures of Pacific jack mackerel - Trachurus symmetricus

Pacific jack mackerel (Trachurus symmetricus) fish species information

Scientific Name
Trachurus symmetricus

Common Name
Pacific jack mackerel

Biology
Dorsal spines (total): 8 - 9; Dorsal soft rays (total): 28-38; Anal spines: 1 - 2; Anal soft rays: 22 - 33; Vertebrae: 23 - 25. Small specimens may have an additional forward-directed spine at first dorsal origin (embedded in larger specimens).

Classification

Classified By

Ayres, 1855

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Jacks and pompanos (Carangidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: southeastern Alaska to southern Baja California, Mexico and the Gulf of California; reported from Acapulco in Mexico and the Galapagos Islands.

Range

65°N - 13°N

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

400 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 400 m

Trophic Level

3.56 s.e. 0.52 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

81.0 cm

Common Length

55.0 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: commercial; gamefish: yes

Vulnerability

Low to moderate vulnerability (30 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (K=0.09-0.21;tm=2-3; tmax=30; Fec

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)