Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Leiocassis: Greek, leios = smooth + Greek, kassis = similar to cinnamon (Ref. 45335); rudicula: Name from Latin 'rudicula', a diminutive of wooden spoon, alluding to the distinct concavity on the dorsolateral profile of the head (Ref. 121927).
Environment: milieu / climate zone / Tiefenbereich / distribution range
Ökologie
; süßwasser demersal. Tropical
Asia: Indonesia.
Size / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 11.8 cm SL Männchen/unbestimmt; (Ref. 121927)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
This species can be distinguished from its congeners by the following set characters: presence of distinct concavity at level of orbit in dorsolateral profile of the head; tip of supraoccipital spine not reaching anterior nuchal plate element; short dorsal spine with smooth posterior margin; presence of an irregular pale band on sides of body between dorsal and adipose fins; anal fin with narrow brown band across middle 3rd of fin; narrow caudal-fin lobes with approximately straight posterior margins; snout length 36-40% HL; eye diameter 14-20% HL; head depth 17.6-20.0% SL; length of dorsal-fin spine 14.1-18.5% SL; length of pectoral-fin spine 15.1-17.7 %SL; dorsal-to-adipose distance 10.9-14.3% SL; body depth at anus 16.4-19.5% SL; length of adipose-fin base 18.9-24.1% SL; length of anal-fin base 18.8-22.6% SL; and caudal peduncle depth 9.1-10.9% SL (Ref. 121927).
Cross section: compressed.
One of the bagrid catfish species known to be endemic to the Mahakam River drainage. Found in streams with a moderate or fast flowing current with clear, sometimes tannin-stained, water (Ref. 121927).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Ng, H.H. and R.K. Hadiaty, 2019. Leiocassis rudicula (Teleostei: Siluriformes: Bagridae), a new catfish from eastern Borneo. Zootaxa 4651(1):191-200. (Ref. 121927)
IUCN Rote Liste Status (Ref. 130435: Version 2025-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00408 - 0.01859), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.1 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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