Classification / Names
आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
ऐकटीनोप्टीरेजी (रेज़-फिन्नढ मछलियाँ) >
Osteoglossiformes (Bony tongues) >
Osteoglossidae (Arowanas)
Etymology: Scleropages: Greek, skleros = hard + Greek, page, -es = knot (Ref. 45335).
पर्यावरण / जलवायु / सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल पिलाजिक. Tropical; ? - 15°C (Ref. 44894), preferred ?; 6°S - 14°S
Asia and Oceania: northern Australia and central-southern New Guinea (Ref. 58511).
Length at first maturity / आकार / वज़न / Age
Maturity: Lm 45.0 range ? - ? cm
Max length : 100.0 cm SL पुल्लिंग / अलिंग; (Ref. 44894); common length : 55.0 cm SL पुल्लिंग / अलिंग; (Ref. 44894)
Short description
आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण): 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 20-24; गुदा कांटा 0; ऐनल सौफट रेज़: 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).
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.
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. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
मात्स्यिकी: कोई रुचि बग़ैर; जलीयकृषि: व्यापारिक; आखेट मत्स्य: हां; जलजीवालय: व्यापारिक
अधिक जानकारी
संदर्भजलीयकृषिजलीयकृषि रूपरेखाखींचआनुवंशिकीऐल्लि आवृतियाँहैरेटिबिलटीबीमारीप्रक्रमणMass conversion
साधन
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इंटरनेट स्रोत
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5781 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref.
69278): 2.8 ±0.1 se; Based on diet studies.
लौटाव (Ref.
69278): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (tm=4-5; Fec=30-130).
Vulnerability (Ref.
59153): High vulnerability (59 of 100) .
