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Halfmoon (Medialuna californiensis) fish species and information / pictures of Halfmoon - Medialuna californiensis

Halfmoon (Medialuna californiensis) fish species information

Scientific Name
Medialuna californiensis

Common Name
Halfmoon

Biology
Often occur in rocky areas and in kelp beds. Found from inshore areas to 40 m depth. Feed on seaweed and small invertebrates. Pelagic spawner (Ref. 56049). Also caught with harpoons. The flesh is of excellent quality and is marketed fresh (Ref. 9310).

Classification

Classified By

Steindachner, 1876

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Sea chubs (Kyphosidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Vancouver Island in British Columbia, Canada to Gulf of California; rare north of Point Conception in California, USA.

Range

51°N - 23°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

40 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 40 m (Ref. 9310)

Trophic Level

2.67 s.e. 0.22 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

48.0 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

Unknown

Vulnerability

Low to moderate vulnerability (34 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=2)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)