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Ward's sleeper (Valenciennea wardii) fish species and information / pictures of Ward's sleeper - Valenciennea wardii

Ward's sleeper (Valenciennea wardii) fish species information

Scientific Name
Valenciennea wardii

Common Name
Ward's sleeper

Biology
Found in sandy areas of shallow lagoon reefs. Inhabits coastal bays and inner reefs, usually on deep silty slopes from about 15 meters down (Ref. 48637).

Classification

Classified By

Playfair, 1867

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: extremely rare, known from widely scattered localities in the Indian Ocean and western tropical Pacific.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

27 °C

Depth From - meters

5 m

Depth To - meters

20 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 5 - 20 m (Ref. 9710), usually 5 - 20 m (Ref. 27115)

Trophic Level

3.22 s.e. 0.34 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

15.0 cm

Common Length

Unknown 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

Aquarium: commercial

Vulnerability

Low to moderate vulnerability (34 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