分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Galaxiiformes (Southern smelts)
胡瓜魚目 (Southern smelts) >
Galaxiidae (Galaxiids)
南乳魚科 (Galaxiids) > Galaxiinae
Etymology: Galaxiella: Greek, galaxias, ou = a kind of fish, diminutive (Ref. 45335).
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性. 亞熱帶的; 8°C - 24°C (Ref. 2060); 31°S - 35°S
Oceania: endemic to Australia. Known only from the southwestern part in coastal streams between Albany and Ellen Brook.
大洋洲: 澳洲的特有種。 已知只來自在奧爾巴尼 與亞倫小溪之間的海岸溪流中西南方的部份了。
Length at first maturity / 大小 / 重量 / 年齡
成熟度: Lm 4.7 range ? - ? cm
Max length : 6.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 44894); common length : 3.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 5259)
背棘 (總數) : 0; 背的軟條 (總數) : 6 - 8; 臀棘: 0; 臀鰭軟條: 9 - 12; 脊椎骨: 38 - 43. Adults are brown-grey dorsally and white ventrally with several whitish blotches near the dorsal midline, and a broad brown stripe just below midline from behind eye to caudal-fin base.
Body shape (shape guide): elongated.
成魚是褐色-灰色的背面與腹側白色的有一些在背部中線附近的微白色的斑塊, 與一條寬的褐色斑紋在中線正下方從眼睛後面到尾鰭基底。
Facultative air-breathing (Ref. 126274); Occur in swift-flowing, tea-colored streams coursing through karri forests. Also found in swamps, ponds and roadside ditches. Usually lives in small flowing streams near submerged vegetation. Water inhabited is darkly tannin-stained and acidic (pH 3.0-6.0) (Ref. 44894). Feed on insects and their larvae in water; also on micro-crustaceans. Spawning has been recorded from July to October, peaking between August and September when water temperatures and day length are on the rise. Multiple-spawning females deposit several clutches of eggs over a protracted period of a few weeks in flooded vegetation. Sexual maturity is attained in the first year. Spent adults usually die a few months after spawning (Ref. 44894).
出現在流經 karri 森林的快速流動又茶色的溪流。 也發現於沼澤，池塘與路傍溝渠。 在水捕食昆蟲與他們的幼體; 也在細小的甲殼動物上。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
大洋洲: 澳洲的特有種。 已知只來自在奧爾巴尼 與亞倫小溪之間的海岸溪流中西南方的部份了。
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
瀕危 (EN) (B2ab(i,ii,iii,iv)); Date assessed: 10 January 2019
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00206 - 0.01165), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.2 ±0.36 se; based on food items.
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (K=3.70; tm=1; tmax=1; mean Fec=65).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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