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Siluriformes (Catfishes) >
Siluridae (Sheatfishes)
Etymology: Ceratoglanis: Greek, keras, -atos = horn + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); pachynema: From pachys, Greek for thick and nema, Greek for thread, in reference to the thickened maxillary barbels of mature males..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal. Tropical
Asia: Chao Phraya and Mekong drainages. Previously misidentified as
Ceratoglanis scleronema from the Chao Phraya drainage.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 28.0 cm SL mâle / non sexé; (Ref. 43281)
Description synthétique
Morphologie | Morphométrie
Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 0; Rayons mous anaux: 90 - 101; Vertèbres: 63 - 64. Snout with a gently sloping ventral profile (ventral angle of snout 40°-42°), relatively fewer anal-fin rays (90-101), and larger eyes (eye diameter 13.0-16.4% HL) set closer together (interorbital distance 33.7-36.6% HL). Mature males have membranous extensions on both the anterior and posterior edges of the maxillary barbel. Pectoral spine and articulated segments sexually dimorphic in mature individuals. Males with spine broad and somewhat flattened dorsoventrally, with 10 distinct posterior serrate, increasing in size distally; proximal articulated segments with 17 well-developed posterior serrae; distal-most segments have smaller serrae. Females or juveniles with spine slender and without serrae; proximal articulated segments with 6 minute posterior serrae; distal segments with 5 minute serrae (Ref. 38651). Absence of dorsal fin; short stiff hooked maxillary barbels; posterior nostril above front margin eye (Ref. 43281).
Inhabits mainstream river. Carnivorous, feeding on insects and benthic fauna (Ref. 58784).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Ng, H.H., 1999. A review of the Southeast Asian catfish genus Ceratoglanis (Siluriformes: Siluridae), with the description of a new species from Thailand. Proc. Calif. Acad. Sci. 51(9):385-395. (Ref. 38651)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
PaysZones FAOÉcosystèmesOccurrencesIntroductionsStocksÉcologieRégime alimentaireÉléments du régime alimentaireConsommation alimentaireRation
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00278 - 0.01137), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
