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Atheriniformes (Silversides) >
Melanotaeniidae (Rainbowfishes, blue eyes)
Etymology: Melanotaenia: Greek, melan, -anos = black + latin, taenia = stripe (Ref. 45335); sahulensis: Named for the Pleistocene-era continent Sahul which comprised the land masses of Australia and New Guinea connected under low sea-level and is reflected in the modern distribution of this species. This is a tribute to the Australian and New Guinea Fishes Association (which maintains the journal Fishes of Sahul) that has done much to promote and document native fishes of the region, especially rainbowfishes.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar bentopelagis; pH range: 5.5 - 7.0; kisaran kedalaman 0 - 1 m (Ref. 121823). Tropical
Oceania: Australia, Indonesia and Papua New Guinea.
Ukuran / Berat / umur
Kematangan: Lm ? range ? - ? cm
Max length : 4.8 cm SL jantan/; (Ref. 121823); 3.9 cm SL (female)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 8; duri punggung lunak (Keseluruhan (total)) : 7 - 10; Duri dubur: 1; Sirip dubur lunak: 15 - 17; vertebrata, bertulang belakang: 32 - 35. This species with well-contrasted dark lateral body stripes, is distinguished by the following set of characters: D V-VII, I,7-10 (mode 8); A I,15-17 (mode 16); total procurrent caudal rays 12-16 (mode 13); lateral scales 31-34 (mode 33); cheek scales often 9-12; total gill rakers on first arch 14-18; vertebrae 32-35 (mode 34); body very deep with greatest depth 2.6-3.7 (mean 3.0) in SL, greatest width 1.7-2.9 (mean 2.0) in HL; maxilla relatively long 3.2-4.2 (mean 3.6) in HL; long predorsal distance 1.8-2.2 (mean 2.0) in SL. Colouration: when alive silver to grey body with a series of black lateral stripes; fins with distinct contrasting colour zones, separated by a thick dark submarginal band, most distinct in nuptial males (Ref. 121823).
Cross section: compressed.
Known from large lateral floodplain systems and small swampy creeks, including dune lakes, with dense cover. Occurs in lily lagoons and is most frequently found in acid waters (pH 5.5-7.0). The largest fish recorded in wild was 4.06 cm SL (4.97 mm TL: AM I.21008-005; 4.84 cm SL from captive stock from Skull Creek, near Bamaga), and the fish attributable to this form (Skull Creek) grow larger in captivity (around 50 mm SL or 60 mm TL: NTM S.18153-001) (Ref. 121823).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Hammer, M.P., G.R. Allen, K.C. Martin, M. Adams and P.J. Unmack, 2019. Two new species of dwarf rainbowfishes (Atheriniformes: Melanotaeniidae) from northern Australia and southern New Guinea. Zootaxa 4701(3):201-234. (Ref. 121823)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial; Akuarium: Komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Tingkat Trofik (Acuan
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Kerentanan Penangkapan Ikan (Ref.
59153): Low vulnerability (10 of 100).
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