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: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335).
More on author: Ogilby.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 亞熱帶的; 9°C - 26°C (Ref. 33843); 32°S - 35°S
Oceania: endemic to southwestern Western Australia.
大洋洲: 西南方的西澳大利亞的特有種。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 7.3, range 6 - 10 cm
Max length : 19.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 44894); common length : 9.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 5259); 最大年齡: 5 年 (Ref. 35368)
背棘 (總數): 0; 背的軟條 (總數): 7-10; 臀棘 0; 臀鰭軟條: 11 - 14; 脊椎骨: 50 - 54. Adults have a flattened head and a flattened snout, and are olive-green dorsally and silver-white ventrally, with dark bars laterally. No scales.
成魚有一個平的頭部與一個平的吻, 而且是橄欖綠色的背面與腹面銀白色的, 側面地有深色的橫帶。 沒有鱗片。
Facultative air-breathing in the genus (Ref. 126274); Found in rocky pools at the base of rapids and waterfalls. Occur around submerged vegetation along the edges of pools or slow-flowing water and sometimes in lakes and ponds (Ref. 6896, 33843). Water is usually clear and fresh or darkly tannin-stained and slightly acidic. Tolerate brackish conditions found in many salt-affected rivers of the south-west. A fast swimming species, forming moderately-sized shoals just above the bottom. With the onset of winter rains, these fish move into small tributaries and feeder streams of rivers and wetlands to spawn among flooded vegetation. Sexual maturity is reached the following autumn (Ref. 44894). Feed mainly on insects and small crustaceans. Considered as the most abundant freshwater fish species in southwestern Western Australia (Ref. 6896, 33843, 44894).
在急流與瀑布的基底發現於岩石的水池.。 水中植物的周圍出現沿著水池或緩慢流動的水邊緣與有時在湖泊與池塘中.(參考文獻 6896,33843) 水通常是清澈的與生鮮地或者暗單寧酸-沾染與些微酸性。 容忍被發現於西南方的許多鹽-受到影響河的半鹹淡的環境。 一個快速的游泳種, 形成一般大小的淺灘在底部正上方。 與冬天的開始雨, 這些魚移進河的小支流與捕食者溪流中,而且窪地在茂盛的植物之中產卵。 性成熟下一個秋天被達成。 (參考文獻 44894) 主要捕食昆蟲與小型甲殼動物。 被當作在西南方的西澳大利亞最豐富的淡水魚種.。 (參考文獻 6896,33843,44894)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
大洋洲: 西南方的西澳大利亞的特有種。
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)
無危 (LC) ; Date assessed: 14 February 2019
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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=0.00490 (0.00205 - 0.01170), 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 (Ref.
69278): 3.3 ±0.41 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tm=1; tmax=5; Fec=206;).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).