分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Atheriniformes (Silversides)
銀漢魚目 (Silversides) >
Melanotaeniidae (Rainbowfishes, blue eyes)
黑帶銀漢魚科 (Rainbowfishes, blue eyes)
Etymology: Melanotaenia: Greek, melan, -anos = black + latin, taenia = stripe (Ref. 45335); kokasensis: Named for the nearby village of Kokas, which is the major landmark in the area.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性.
Asia: Indonesia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 79630); 5.9 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 5 - 6; 背的軟條 (總數) : 11 - 14; 臀棘: 1; 臀鰭軟條: 21 - 24. This species is distinguished by the following set of characters: D IV or V-I,11 to 14 (usually 13 or 14); A I,21-24 (usually I,22 or 23); pectoral rays 13-15 (usually 14); lateral scales 35-37 (usually 36); predorsal scales 16-18 (usually 16 or 17); total gill rakers on first arch 16-19 (usually 17 or 18); in life, male colour is generally pale blue grey with blackish midlateral stripe
at level of upper pectoral-fin base (sometimes faint on anterior part of body); narrow orange stripe between each scale row on upper half of body; broad, horizontally bluish streak immediately above abdomen; pelvic and anal fins pale yellowish, remaining fins mainly colourless or slightly grey except narrow white margin on second dorsal fin and narrow blackish dorsal and ventral margins on caudal fin (Ref. 79630).
Known only from the type locality, a small stream flowing along a limestone creek bed through primary forest. The stream plunges down a steep 20 m-high ramp next to the sea into a mangrove-lined inlet near the village of Kokas on the northern Fakfak Peninsula. The fish was collected about one kilometer upstream, in a circular pool with an approximate diameter of 15-20 m and maximum depth of about 0.5 m and this pool was situated only about 20 m downstream from a series of limestone fissures that appear to be the stream’s underground origin (Ref. 79630).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Allen, G.R., P.J. Unmack and R.K. Hadiaty, 2008. Two new species of rainbowfishes (Melanotaenia: Melanotaeniidae), from western New Guinea (Papua Barat Province, Indonesia). aqua, Int. J. Ichthyol. 14(4):209-224. (Ref. 79630)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
極危 (CR) (B2ab(iii)); Date assessed: 03 December 2019
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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).
營養階層 (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
