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Siluriformes (Catfishes) >
Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: rikbaktsa: the Rikbaktsa (also known as Rikbakta or Erikbaktsa), a Jê-speaking indian nation, who formerly inhabited the area between the rio Juruena and rio Aripuanã in northern Mato Grosso.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar dasar (demersal); kisaran kedalaman 0 - 2 m (Ref. 138446). Tropical
South America: Brazil.
Ukuran / Berat / umur
Kematangan: Lm ? range ? - ? cm
Max length : 3.8 cm SL jantan/; (Ref. 138446); 3.7 cm SL (female)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
This species is distinguished by the following characters: with a distinct broad vertical bar on head, at the level of the eye (mask) and an overall light background color, without large blotches or stripes on body or fins; with two to four blotches along the midline, and a broad vertical bar on head narrower at the level of the eye and extending over the entire opercle; posterior margin of pectoral-fin spine with serrations directed towards the tip of the spine (Ref. 138446).
Body shape (shape guide): fusiform / normal; Cross section: angular.
The type-locality (rio Juininha), is a clearwater river with sandy banks while at the rio Papagaio basin, the rio Buriti, is a mid-sized clearwater river (approximately 6–8 meters wide, > 2.0 meters deep at the deepest portions) with strong current in its channel, near its mouth with the rio Papagaio. The species was exclusively collected at this site along a small, shallow sandy shore (Ref. 138446).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Lima, F.C.T. and M.R. Britto, 2020. A new Corydoras (Ostariophysi: Siluriformes: Callichthyidae) with an unusual sexual dimorphism from the rio Juruena basin, Brazil. Zootaxa 4742(3):518-530. (Ref. 138446)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00758 - 0.04173), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Tingkat Trofik (Acuan
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Kerentanan Penangkapan Ikan (Ref.
59153): Low vulnerability (10 of 100).
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