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Siluriformes (Catfishes) >
Siluridae (Sheatfishes)
Etymology: Ompok: It is a bad reproduction of a Malayam fish name as limpok/ompok (Ref. 45335); argestes: The specific name argestes is a Homeric (Greek) term which means southwest, a reference to the region of Sri Lanka in which the species occurs.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Tropical
Asia: Sri Lanka.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 14.7 cm SL hane/ej könsbestämd; (Ref. 116164)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 4; Mjukstrålar i analfenan: 56 - 63; Ryggkotor: 48 - 52. Ompok argestes differs from its Indian and Sri Lankan congeners by the combination of
the following characters: body color pattern mottled; predorsal profile uniformly convex; maxillary barbels reach or extend slightly beyond the base of the dorsal fin; eye diameter 14.2-17.1% head length; body depth at anus 19.8-22.3% standard length (SL); head width 14.3-16.8% SL; caudal peduncle depth 5.6-6.5% SL; and vertebrae 48-52 (Ref. 116164).
Body shape (shape guide): elongated.
Found among submerged roots and marginal vegetation in slow-flowing, shaded regions of rivers and streams with a substratum of mud or leaf debris (Ref. 116164).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Sudasinghe, H. and M. Meegaskumbura, 2016. Ompok argeste, a new species of silurid catfish endemic to Sri Lanka (Teleostei: Siluridae). Zootaxa 4158(2):261-271. (Ref. 116164)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Sårbar (VU) (B1ab(iii)+2ab(iii)); Date assessed: 07 August 2019
Hot mot människor
Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00562 (0.00279 - 0.01132), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |