Classification / Names
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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..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi; pH range: 7.0 - ?; Mức độ sâu 0 - ? m. Tropical
Asia: lower Mahakam basin that drain eastwards into the Makassar Strait in East Kalimantan, Indonesian Borneo.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.1 cm SL con đực/không giới tính; (Ref. 94086)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các vây lưng mềm (tổng cộng) : 14 - 15; Tia mềm vây hậu môn: 8; Động vật có xương sống: 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).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
