You can sponsor this page

Scleropages formosus (Müller & Schlegel, 1840)

Asian bonytongue
Hochladen Photos und videos
Pictures | Stamps, coins, misc. | Google Bild
Image of Scleropages formosus (Asian bonytongue)
Scleropages formosus
Picture by Tursinah, N.


Viet Nam country information

Common names: Cá Kim Long, Cá Rồng
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from southern Vietnam (Ref. 2091). Also Ref. 12693. Status of threat: Endangered (Ref. 46452).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/vm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kuronuma, K., 1961
National Database:

Common names from other countries

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Osteoglossidae (Arowanas)
Etymology: Scleropages: Greek, skleros = hard + Greek, page, -es = knot (Ref. 45335).
  More on authors: Müller & Schlegel.

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

; süßwasser benthopelagisch.   Tropical; 24°C - 30°C (Ref. 2060)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Asia: Southern Myanmar to Malay Peninsula and Indonesia, eastern Thailand to Cardamon Range.

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL Männchen/unbestimmt; (Ref. 6398)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

With 1 pair of barbels; scales large.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Occurs in tannin stained blackwater streams (Ref. 12693). Found in forest covered streams including peat adjacent areas. Take around three months for free swimming fries (Ref. 57235). Young individuals feed on insects at the water surface, adults take fishes (Ref. 12693, 57235) and smaller vertebrates (Ref. 56749). A mouth brooder, young about 6 cm at birth (Ref. 7050, 57235). Valued as an aquarium fish, its flesh commands a moderate price.

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

From an observation of a breeding pair in a concrete tank, courtship lasts from several weeks to months. During this stage, the breeding pair swims near the water surface usually at night. "The male chases the female around the perimeter of the tank. Sometimes, the pair circle each other nose-to-tail. About one to two weeks before spawning takes place, the fish swim side by side with their bodies touching. Eventually, the female releases a cluster of orange-red eggs. The male fertilises the eggs and then scoops them into its mouth where it incubates them. After hatching which occurs in about a week, the young larvae continue to live in the male's mouth for 7-8 weeks more until the yolk sac is totally absorbed" (Ref. 57886).

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Kottelat, M., 2013. The fishes of the inland waters of Southeast Asia: a catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. The Raffles Bulletin of Zoology 2013 (Suppl. 27):1-663. (Ref. 94476)

IUCN Rote Liste Status (Ref. 130435)

  stark gefährdet (EN) (A2cd+4cd); Date assessed: 03 June 2019

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: hoch kommerziell
FAO(Fischereien: production; publication : search) | FishSource |

Mehr Information

Trophic ecology
Nahrungsorganismen
Diet compositions
Food consumptions
Food rations
Räuber
Ecology
Ökologie
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversions
Recruitments
Abundances
Life cycle
Fortpflanzung
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larven Pop.Dyn.
Distribution
Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
BRUVS - Videos
Anatomy
Gill areas
Gehirngröße
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fisch Laute
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquakultur Profile
Zuchtlinien
Ciguatera cases
Stamps, coins, misc.
Outreach
Partner
References
Referenzen

Tools

Zusatzinformationen

Download XML

Internet Quellen

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5781   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00172 - 0.01010), b=3.10 (2.89 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.63 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (tm = 3-4; Fec = 50 (in concrete tanks)).
Fishing Vulnerability (Ref. 59153):  High vulnerability (56 of 100).
Preiskategorie (Ref. 80766):   Unknown.