Butis butis, Duckbill sleeper : fisheries

Butis butis (Hamilton, 1822)

Duckbill sleeper
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Butis butis   AquaMaps   Data sources: GBIF OBIS
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Image of Butis butis (Duckbill sleeper)
Butis butis
Picture by Keith, P.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Butidae (Gudgeon gobies)
More on author: Hamilton.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; freshwater; brackish; demersal; pH range: 7.0 - 8.0; dH range: 9 - 19; amphidromous (Ref. 51243). Tropical; 22°C - 28°C (Ref. 2060)

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IIndo-Pacific: from Reunion I., India, and Bangladesh to the Philippines, Indonesia, Thailand, Vietnam, Cambodia, Papua New Guinea, Australia and the Solomon Is.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 6802); max. published weight: 18.95 g (Ref. 124712)

Short description Identification keys | Morphology | Morphometrics

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).
Body shape (shape guide): elongated.

Biology     Glossary (e.g. epibenthic)

Inhabits brackish mangrove estuaries and lower reaches of freshwater streams, usually on mud bottoms (Ref. 44894). Usually found in lagoons and estuaries, particularly where there is vegetation (Ref. 6028, 79840). Occurs frequently in mangrove swamps (Ref. 2847, 79840). Occasionally ascends rivers (Ref. 6028). Feeds mainly on small fishes and crustaceans (Ref. 6028, 79840). Marketed fresh (Ref. 12693).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Keith, P. and M.I. Mennesson, 2023. Review of Butis (Teleostei: Butidae) from Indo-Pacific islands with description of three new species. Cybium 47(4):431-466. (Ref. 130228)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Least Concern (LC) ; Date assessed: 29 June 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial
FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |