Classification / Names
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Leptodoras: Greek, leptos = thin + Greek, doras = skin (Ref. 45335); oyakawai: Named for Osvaldo Takeshi Oyakawa, for his dedicated service to the ichthyological community since 7 July 1989 as Collection Manager of the Fish Collection ('Seção de Peixes') at the Museu de Zoologia da Universidade
de São Paulo..
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি তলদেশ বিহারী. Tropical
South America: Rio Tapajós and rio Xingu basins in Brazil.
আকৃতি / ওজন / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.4 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 79526)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় কাঁটা (মোট ) : 1; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 6; কশেরুকা : 38 - 40. A species belonging to the genus Leptodoras by having modified oral hood and first gill arch with enlarged accessory lamellae extending well onto medial face of gill filaments. Differs from other species of Leptodoras by having the following three unique characters: gas bladder moderately sized (not reduced) and with simple walls (diverticula absent), and paired bony capsules on anteriormost vertebrae reduced to paired cup-like laminar ossifications separated by a triangular septum (Ref. 79526).
Caught at night on a large sandy shoal where the main channel of the river is wide and shallow (less than 2 m in depth) ) and with sluggish current. This species was also collected at night along a sandy beach with moderate current (Ref. 79526).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
Birindelli, J.L.O., L.M. Sousa and M.H. Sabaj Pérez, 2008. New species of thorny catfish, genus Leptodoras Boulenger (Siluriformes: Doradidae), from Tapajós and Xingu basins, Brazil. Neotrop. Ichthyol. 6(3):465-480. (Ref. 79526)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00437 - 0.01992), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).