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Pile perch (Rhacochilus vacca) fish species and information / pictures of Pile perch - Rhacochilus vacca

Pile perch (Rhacochilus vacca) fish species information

Scientific Name
Rhacochilus vacca

Common Name
Pile perch

Biology
Dorsal spines (total): 9 - 11; Dorsal soft rays (total): 21-25; Anal spines: 3; Anal soft rays: 27 - 30; Vertebrae: 33 - 38. Above, dark gray or brown pigment with a silvery luster which dominates the color on sides and belly; darker blotches on the back and sides, dark vertical bars on juveniles; fins dusky (Ref. 6885).

Classification

Classified By

Girard, 1855

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Surfperches (Embiotocidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Wrangell, southeastern Alaska to Guadalupe Island, off north-central Baja California, Mexico.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

46 m

Zone

demersal

Environment

Marine; demersal; depth range ? - 46 m (Ref. 2850)

Trophic Level

3.68 s.e. 0.56 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

True

Physical Size and Genetics

Maximum Length

44.2 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes; aquarium: public aquariums

Vulnerability

Low to moderate vulnerability (34 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=2.5; tmax=10)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)