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Tetraodontiformes (Puffers and filefishes) >
Triacanthidae (Triplespines)
Etymology: Pseudotriacanthus: Greek, pseudes = false + Greek, tres, tria = three + Greek, akantha = thorn (Ref. 45335).
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino; salmastro demersale; distribuzione batimetrica 2 - 110 m (Ref. 3540). Tropical
Indo-Pacific: Persian Gulf, Gulf of Oman, Arabian Sea, Bay of Bengal, Philippines, South China Sea including Gulf of Thailand, Indonesia, and northern Australia.
Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 25.0 cm TL maschio/sesso non determinato; (Ref. 9804); common length : 20.0 cm TL maschio/sesso non determinato; (Ref. 3540)
Second dorsal-fin spine more than 1/2 length of first dorsal-fin spine. Anal-fin base about 2 times in soft dorsal-fin base. Scales with an anterior to posterior series of high, thin, distally emarginated vertical ridges (Ref 9804).
Body shape (shape guide): short and / or deep.
Occurs in coastal and estuarine waters, on sandy or muddy flats to depths of usually 60 m, Ref. 48637. Feeds on benthic invertebrates. Sold fresh in markets.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Matsuura, K., 2001. Triacanthidae. Triplespines. p. 3905-3910. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9804)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale; Acquario: Commerciale
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 24.7 - 29, mean 28 °C (based on 1840 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 1.0078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00691 - 0.02294), b=2.88 (2.71 - 3.05), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 2.5 ±0.20 se; based on food items.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
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