Teleostei (teleosts) >
Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Pseudomystus: Greek, pseudes = false + Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; pH range: 6.0 - 8.0; dH range: 4 - 25. Tropical; 20°C - 26°C (Ref. 2060)
Asia: Chao Phraya and Mekong basins (Ref. 27732). Reported from Maeklong, Peninsular and Southeast Thailand river systems (Ref. 26336).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 118477)
Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 16 - 17. Irregular vertical bars on a yellowish to dark grey background (sometime plain dark body); hyaline caudal fin with or without a single black blotch on each caudal lobe; short barbels (maxillary barbels not reaching base of pectoral spine); body depth at dorsal-fin origin larger than head width; a high, rounded adipose fin (Ref. 27732).
Occurs in rivers and streams (Ref. 12693). Found in the basin wide tributary of the lower Mekong (Ref. 36667). Feeds on aquatic insect larvae, including odonatans. Adult females captured in February had well-developed ova. Spawning takes place at the beginning of the rainy season, with the young appearing in fishing nets during August. Market fresh (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
The male guards the eggs.
Kottelat, M., 1998. Fishes of the Nam Theun and Xe Bangfai basins, Laos, with diagnoses of twenty-two new species (Teleostei: Cyprinidae, Balitoridae, Cobitidae, Coiidae and Odontobutidae). Ichthyol. Explor. Freshwat. 9(1):1-128. (Ref. 27732)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00614 - 0.01628), b=2.98 (2.84 - 3.12), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.44 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
