";} } ?> Pseudobagarius alfredi

Pseudobagarius alfredi (Ng & Kottelat, 1998)

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Pseudobagarius alfredi
Picture by Ng, H.H.

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> Siluriformes (Catfishes) > Akysidae (Stream catfishes) > Akysinae
Etymology: alfredi: Named for Eric R. Alfred, for his pioneering work on the freshwater fish fauna of Peninsular Malaysia..
More on authors: Ng & Kottelat.

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

; zoet water benthopelagisch. Tropical

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Asia: Tasek Bera in Malaysia.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL mannelijk / geslacht onbekend; (Ref. 30226)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 5-6; Anale zachte stralen: 8 - 10; Wervels: 32 - 33. Distinguished from all its congeners by possessing tubercles with poorly-demarcated, indistinct margins (versus tubercles with well-demarcated and distinct margins) and the following combination of characters: head width 20.3-25.0% SL; body depth at anus 11.3-14.7% SL; depth of caudal peduncle 5.7-7.3% SL; pectoral-fin length 23.1-28.9% SL; interorbital distance 34-39% HL; eye diameter 7-11% HL; length of nasal barbel 29-65% HL; length of maxillary barbel 122-144% HL; length of outer mandibular barbel 88-134% HL; color pattern of dark-colored patches on a predominantly light-colored body (versus predominantly dark-colored body with light-colored patches in its congeners); and caudal fin strongly forked (Ref. 30226).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Recorded from small slow-flowing forested streams with acidic water (Ref. 84801).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)

Status op de Rode Lijst van het IUCN (Ref. 125652)

  Onvoldoende gegevens (DD) ; Date assessed: 01 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.3   ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).