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: Paragalaxias: Greek, para = the side of + Greek, galaxias, ou = a kind of fish (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 溫帶
Oceania: known only from the Central Plateau of Tasmania, Australia.
大洋洲: 已知只來自塔斯梅尼亞，澳洲的中央高地了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 7.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 44894); common length : 5.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 5259); 最大年齡: 3.00 年 (Ref. 44894)
Facultative air-breathing in the genus (Ref. 126274); Live in the margins of lakes and streams, usually in rocky areas or around vegetation and debris. Bottom-dweller in shallows of lakes and inlet streams over rocky substrates. Often sheltering in crevices under rocks, woody debris or among aquatic plants. May also occur in deeper lacustrine waters. A nocturnally active, seldom seen species. Breed in summer (December-January), releasing demersal eggs among rocks at lake margins which hatch in two weeks. Juveniles swim in midwater feeding on plankton, and colonise the bottom after about six months. Sexual maturity is attained at the end of the first year; the maximum life span is probably about three years (Ref. 44894). Feed on insects, small crustaceans, algae and eggs of other galaxiids.
生活於湖泊與溪流的邊緣, 通常在岩石區或植物與殘礫的周圍。 在湖與小水灣的淺灘中的底棲魚類在岩石的底部之上的溪流。 時常在岩石下面的裂隙隱匿, 植物殘礫或在水生植物之中。 可能也更深地出現在湖泊的水域。 夜行活躍,少見的種。 在夏天 (十二月-一月) 繁殖,在二個星期內孵化的湖邊緣釋放在岩石之中的沉性卵。 稚魚游泳在浮游生物上在中層水域覓食, 而且在開拓殖民地底部大約六個月之後。 性成熟在第一個年結束的時候被達到; 三年的大約被可能是的最大壽命.(參考文獻 44894) 捕食其他南乳魚科魚類的昆蟲，小型甲殼動物，藻類與卵。
大洋洲: 已知只來自塔斯梅尼亞，澳洲的中央高地了。
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)
瀕危 (EN) (A2ab); Date assessed: 12 February 2019
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [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): 3.2 ±0.40 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (tm=1; tmax=3; Fec=39).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
