Classification / Names
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Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Sisorinae
Etymology: Glyptothorax: Greek, glyptes = carver + Greek, thorax = breast (Ref. 45335); siangensis: Named for its type locality, Siang River, Arunachal Pradesh.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten bentopelagisk. Tropical
Asia: India.
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 12.5 cm SL hane/ej könsbestämd; (Ref. 130789)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 2; Mjukstrålar i ryggfenan (totalt) : 6; Taggstrålar i analfenan: 3 - 4; Mjukstrålar i analfenan: 10; Ryggkotor: 36 - 37. This species Is distinguished from its congeners from the Ganga–Brahmaputra drainage and its neighbouring drainages by the following set of characters: a thoracic adhesive apparatus with skin ridges in almost over the entire apparatus, including the depressed region with a sword-shaped median depression, which is narrowly opened posteriorly, not extending anteriorly onto the gular region; dorsal spine is distinctly greater than body depth at its origin, posteriorly serrated with 11-17 serrae, its length 18.0-19.0% SL; nuchal plate is saddle-like with W-shaped extensions; shallow body depth with depth at anus 13.3-14.9% SL; caudal peduncle depth, 8.3-9.1% SL; long nasal barbel, 27-35% head length; ventral surface of pectoral spine and first pelvic-fin ray non-plaited. Colouration: a complete longitudinal black band across the distal half of dorsal-fin; and 4-6 tips of neural spines extension visible as a row of edges between adipose fin and origin of procurrent rays of caudal-fin (Ref. 130789).
Cross section: compressed.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Singh, P., L. Kosygin, S. Rath and S.D. Gurumayum, 2023. Glyptothorax siangensis, a new species of catfish (Sisoridae) from the Brahmaputra River drainage, Arunachal Pradesh, India. J. Ichthyol. 63(6):993-1004. (Ref. 130789)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
Verktyg
Special reports
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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=0.00813 (0.00369 - 0.01791), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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