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> 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); heokhuii: Named for Heok Hui Tan..

Environment: milieu / climate zone / depth range / distribution range Οικολογία

; Γλυκού νερού βενθικό(ς); pH range: 3.5 - 4.5. Tropical

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Asia: Batang Hari and Indragiri River drainages in Sumatra, Indonesia.

Μέγεθος / Βάρος / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.4 cm SL αρσενικό/απροσδιόριστο; (Ref. 74936)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 1; Μαλακές ραχιαίες ακτίνες (συνολικά) : 7; Μαλακές εδρικές ακτίνες: 12 - 14; Σπόνδυλοι: 35 - 36. Differs from its congeners in possessing a color pattern consisting of a pale midlateral stripe and two pale oblique bands on the sides of the body; no other congener exhibits a distinct pale midlateral stripe. Can be differentiated further from all congeners except Pseudomystus breviceps, Pseudomystus bomboides, Pseudomystus flavipinnis, Pseudomystus myersi, Pseudomystus siamensis, Pseudomystus robustus, Pseudomystus sobrinus and Pseudomystus stenomus in having a deeper body (17.8-21.0% SL vs. 9.0-17.0). Differs from Pseudomystus leiacanthus in having two (vs. one) dark narrow irregular bars on the caudal fin, longer pectoral spine (19.3-22.4% SL vs. 15.2-18.6), longer caudal fin (33.5-40.0% SL vs. 25.7-31.9) with pointed (vs. rounded) lobes, longer nasal and maxillary barbels (63.1-81.1% HL vs. 31.3-51.5 and 86.2-125.3% HL vs. 70.9-91.3 respectively; nasal barbel reaching to dorsal insertion of opercular flap vs. to just beyond posterior orbital margin and maxillary barbel reaching just beyond base of last pectoral-fin ray vs. to base of pectoral spine), a straight ( vs. crescentic) premaxillary tooth patch, a more sharply tapering snout when viewed dorsally and an even (vs. slightly convex) predorsal profile (Ref. 74936).

Occurs in floodplain channels and peat swamps with very acidic (pH 3.5-4.5), tannin-stained water (Ref. 74936).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Lim, K.K.P. and H.H. Ng, 2008. Pseudomystus heokhuii, a new species of bagrid catfish from Sumatra (Teleostei:Bragidae). Zootaxa 1686:37-47. (Ref. 74936)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(i,iii)); Date assessed: 15 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Διαδικτυακές πηγές

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00832 (0.00384 - 0.01800), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Τροφικό Επίπεδο (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Ελαστικότητα (Ref. 120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Pseudomystus heokhuii Lim & Ng, 2008