klasifikasi / Nama
Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa
>
Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Knodus: Greek, knodon, -ontos = knife, sword (Ref. 45335); geryi: Named after Jacques Géry, in recognition of his enormous contribution to the knowledge of the characiform fishes.
Eponymy: Dr Jacques Géry (1917– 2007) was a French physician and ichthyologist. [...] (Ref. 128868), visit book page.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar bentopelagis. Tropical
South America: rio do Peixe in the upper rio Paraguay basin, Brazil.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 6.5 cm SL jantan/; (Ref. 55831)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 10; Sirip dubur lunak: 18 - 20; vertebrata, bertulang belakang: 38 - 39. Differs from all congeners and from all remaining characid fishes by having two symmetric, large dark blotches basally on caudal fin lobes (Ref. 55831).
Inhabits small river with transparent waters, very channeled and relatively deep (> 2 m deep in some points), having both rapids and waterfalls (Ref. 55831). Feeds on vegetal matter and insects (Ref. 55831).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Lima, F.C.T., H.A. Britski and F.A. Machado, 2004. New Knodus (Ostariophysi: Characiformes: Characidae) from the upper Rio Paraguay basin, Brazil. Copeia 2004(3):577-582. (Ref. 55831)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
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=0.00776 (0.00405 - 0.01487), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Tingkat Trofik (Acuan
69278): 3.2 ±0.40 se; based on food items.
Kerentanan Penangkapan Ikan (Ref.
59153): Low vulnerability (10 of 100).
🛈