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Cypriniformes (Carps) >
Psilorhynchidae (Mountain carps)
Etymology: Psilorhynchus: Greek, psilos = hairless + Greek, rhyngchos = snout (Ref. 45335); tysoni: Named for Tyson R. Roberts who collected the majority of the specimens in the type series and made them available for study; a noun in genitive (Ref. 110241).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Asia: known currently only from a few localities on the Mae Nam Moei and its tributary the Hue Mae Song, Tak Province, Thailand (Ref. 110241).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 5.4 cm SL macho/indeterminado; (Ref. 110241)
Descrição suscinta
Morfologia | Morfometria
Raios dorsais (total): 12; Raios anais : 8; Vértebras: 34. Diagnosis: 6–7 dorsal saddles along dorsal midline, including 1-2 between occiput and dorsal-fin origin and 5-6 from dorsal-fin origin to caudal-fin origin; posteriormost dorsal saddle at caudal-fin origin small but prominent and represented by black or dark brown spot; L+1 and L-1 rows restricted to center of body side, not extending posterior to vertical through anal-fin origin; L+2 row absent; dorsal-fin with poorly developed dark brown or black markings along anterior margin; 2 widely separate dark brown or black markings on both upper and lower caudal fin lobes; anguloarticular portion of preoperculo-mandibular canal present; principal caudal-fin rays 10+9; total vertebrae 34 (17+17); body shallow (14–18% SL); caudal peduncle short (11–14% SL); snout short (35–43% HL); mouth narrow (mouth width 21-26% HL) (Ref. 110241).
Collected in swift flowing water of shallow to moderate (50-100 cm) depth over a substrate of sand and gravel; water parameters measured at this locality at time of collection include: 21C, pH 7.5, KH 3, GH 0 (Ref. 110241).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Conway, K.W. and A.K. Pinion, 2016. Psilorhynchus tysoni, a new species of torrent minnow from the Salween River drainage, western Thailand (Teleostei: Psilorhynchidae). Zootaxa 4136(3):580-592. (Ref. 110241)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias:
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Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00179 - 0.00969), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.0 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
