分類 / Names
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Galaxiiformes (Southern smelts) >
Galaxiidae (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
生態学
; 新鮮な水 底生の. Temperate
Oceania: known only from the Central Plateau of Tasmania, Australia.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm SL オス/雌雄の選別がない; (Ref. 44894); common length : 5.5 cm SL オス/雌雄の選別がない; (Ref. 5259); 最大記録サイズ: 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.
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
IUCNのレッドリストの状況は (Ref. 130435)
絶滅危惧 (EN) (A2ab); Date assessed: 12 February 2019
Human uses
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インターネットの情報源
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).
栄養段階 (Ref.
69278): 3.2 ±0.40 se; based on food items.
回復力 (Ref.
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (tm=1; tmax=3; Fec=39).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).