Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Osteoglossidae (Arowanas)
Etymology: Scleropages: Greek, skleros = hard + Greek, page, -es = knot (Ref. 45335).
More on author: Saville-Kent.

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

; acqua dolce pelagico. Tropical; ? - 15°C (Ref. 44894); 6°S - 14°S

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Asia and Oceania: northern Australia and central-southern New Guinea (Ref. 58511).

Length at first maturity / Size / Peso / Age

Maturity: L_m 45.0 range ? - ? cm
Max length : 100.0 cm SL maschio/sesso non determinato; (Ref. 44894); common length : 55.0 cm SL maschio/sesso non determinato; (Ref. 44894)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 20 - 24; Spine anali: 0; Raggi anali molli: 28 - 32.

Adults occur in still waters of streams and swamps where it is usually seen near the surface or close to shore among aquatic vegetation (Ref. 2847, 44894). Solitary, territorial and spawn prior to the wet season when surface water temperatures approach 30°C (Ref. 44894). Young feed primarily on microcrustaceans (Ref. 2847). Primarily a surface feeder, feeding on a variety of terrestrial and aquatic insects, small fishes, frogs, crustaceans, and some plant material (Ref. 44894). Mouthbrooders (Ref. 56180). Maximum weight reported in Ref. 5259 may be 12.27 kg (W. Lau, pers. Comm. 07/05). Important food fish (Ref. 58511) and a valuable aquarium fish (Ref. 83518).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Fertilized eggs are carried in the mouth of the female. Eggs hatch in 1-2 weeks. Larvae, with their enlarged yolk sac, are kept in or close to the mouth for another 4 or 5 weeks. Young fish commence feeding, primarily on microcrustaceans, at a size of 2-3 cm, well before the yolk sac is entirely resorbed. Become independent at a length of 3.5-4.0 cm.

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Allen, G.R., 1991. Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 14 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: di nessun interesse; Acquacoltura: commerciale; Pesce da pesca sportiva: si; Acquario: Commerciale

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecologia

Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Life cycle
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Dinamica popolazioni larvali

Distribution
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Anatomy
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Physiology
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Genetics
Genetica
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Human related
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Profili di acquacoltura
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Ciguatera cases
Stamps, coins, misc.

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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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.8 ±0.1 se; based on diet studies.

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (tm=4-5; Fec=30-130).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (73 of 100).

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