Classificazione / Nomi
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Beloniformes (Needle fishes) >
Zenarchopteridae (Internally fertilized halfbeaks)
Etymology: Hemirhamphodon: Greek, hemi = half + Greek, rhamphos = bill + greek, odous = teeth (Ref. 45335); kecil: Name from the Bahasa Indonesian word 'kecil', meaning small, in reference to the diminutive size of this species. Used as a noun in apposition.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce pelagico; pH range: 7.0 - ?; distribuzione batimetrica 0 - ? m. Tropical
Asia: lower Mahakam basin that drain eastwards into the Makassar Strait in East Kalimantan, Indonesian Borneo.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 4.1 cm SL maschio/sesso non determinato; (Ref. 94086)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 14 - 15; Raggi anali molli: 8; Vertebre: 39 - 41. Distinguished from other species of Hemirhamphodon in having the following characters: discernable markings on body and fins absent, except dorsal part of caudal fin base with sparse black pigments on both male and female; and submargin of dorsal fin suffused with black pigments; small adult size, up to 41 mm SL; adult sizes for male and female similar (as with H. tengah), other congeners with males up to 50% larger than females; males with an enlarged posterior projection on the fourth anal-fin ray, with third, fourth, sixth and eighth anal-fin rays branched; females with third, fourth and eighth anal-fin rays branched; pelvic-fin origin anterior to dorsal-fin origin; and dorsal fin with 14 to 15 rays (Ref. 94086).
Inhabits streams with submerged bank vegetation and clear water of pH 7.0 flowing over rocky, sand and silt substratum. Tends to form school in small groups of about 3 to 5 individuals at the surface, preferring quiet pools and dwelling near or under overhanging bank
vegetation. Syntopic with Osteochilus vittatus, Rasbora elegans, Systomus binotatus (Cyprinidae), Betta patoti, Trichopodus trichopterus (Osphronemidae), and Channa lucius (Channidae).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Tan, H.H. and K.K. Lim, 2013. Three new species of freshwater halfbreaks (Teleostei: Zenarchopteridae: Hemirhamphodon) from Borneo. The Raffles Bulletin of Zoology 61(2):735-747. (Ref. 94086)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00457 (0.00201 - 0.01039), b=3.03 (2.83 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |