Classificatie / Names
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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 / depth range / distribution range
Ecologie
; zoet water demersaal. Tropical
Asia: Indonesia.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 11.8 cm SL mannelijk / geslacht onbekend; (Ref. 121927)
Korte beschrijving
Morfologie | Morfometrie
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).
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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | 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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Meer informatie
Lokale namenSynoniemenMetabolismePredatorenEcotoxicologieVoortplantingMaturiteitPaaienPaaiaggregatiesFecunditeitEierenOntwikkeling van de eieren
Leeftijd/GrootteGroeiLengte-gewichtLengte-lengteLengtefrequentiesMorfometrieMorfologieLarvenLarvale populatiedynamiekRekruteringAbundantieBRUVS
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).