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Duckbill sleeper (Butis butis) fish species and information / pictures of Duckbill sleeper - Butis butis

Duckbill sleeper (Butis butis) fish species information

Scientific Name
Butis butis

Common Name
Duckbill sleeper

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8 - 9. Dark longitudinal lines on body; caudal fin black with light margin dorsally; pectoral base with 1-2 black spots (Ref. 5493).

Classification

Classified By

Hamilton, 1822

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Sleepers (Eleotridae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: East Africa to Fiji (Ref. 6820).

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

28 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; freshwater; brackish; ; pH range: 7.0 - 8.0; dH range: 9 - 19 demersal; amphidromous (Ref. 51243)

Trophic Level

4 s.e. 0.66 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

15.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

Low vulnerability (23 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)