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> Siluriformes (Catfishes) > Sisoridae (Sisorid catfishes) > Sisorinae
Etymology: Erethistoides: Greek, erethizo = that irritates + Greek, suffix oides = similar (Ref. 45335); cavatura: From the Latin noun cavatura, meaning cavity, in reference to the large eye and nostrils of this species..

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

; süßwasser demersal; pH range: 8.0 - 8.0. Tropical; 18°C - 26°C (Ref. 55978)

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Asia: Nepal.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 3.3 cm SL Männchen/unbestimmt; (Ref. 55978)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt): 5; Wirbelzahl: 29 - 30. Distinguished from congeners in having larger nostrils (the length of the narial complex 77-90% of interorbital width vs. 42-75). Both E. ascita and E. cavatura differ from E. montana and E. pipri in having a longer caudal peduncle (19.3-22.5% SL vs. 14.4-17.3%). Both species differ further from E. montana in having a more slender body (8.6-10.5% SL vs. 10.6-11.4) and E. sicula by the absence (vs. presence) of a slight median depression on the lower lip margin. E. cavatura can be further distinguished from E. ascita in having a larger eye (17.7-20.9% HL vs. 13.2-17.6), the presence of rounded (vs. elongate and flattened plaque-like) tubercles on the head and body, and the serrations on the anterior edge of the pectoral spine more anteriorly (vs. sideways) directed and diverging at the middle (vs. distal quarter, 6-11 proximalmost serrations proximally directed vs. 12-17 (Ref. 55978).

Occurs in shallow (approximately 10-20 cm) gravel and pebble riffles of streams and rivers with predominantly sandy bottoms, in moderate to fast current (Ref. 55978). Found in clear to turbid waters (Ref. 55978).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Ng, H.H. and D.R. Edds, 2005. Two new species of Erethistoides (Teleostei: Erethistidae) from Nepal. Ichthyol. Explor. Freshwat. 16(3):239-248. (Ref. 55978)

IUCN Rote Liste Status (Ref. 130435)

Daten mangelhaft (DD) ; Date assessed: 21 December 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00284 - 0.02223), b=3.08 (2.84 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

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

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Erethistoides cavatura Ng & Edds, 2005