分類 / 名前
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Galaxiiformes (Southern smelts) >
Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxiella: Greek, galaxias, ou = a kind of fish, diminutive (Ref. 45335).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の. Temperate; 10°C - 30°C (Ref. 86895); 34°S - 35°S
Eastern Indian Ocean: Western Australia (from Augusta to Albany, and three remnant populations - Near Bunbury, Melaleuca Park north of Perth and Lake Chandala north of Muchea).
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 3.7 range ? - ? cm
Max length : 4.4 cm TL オス/雌雄の選別がない; (Ref. 6849); 4.8 cm TL (female); common length : 3.0 cm SL オス/雌雄の選別がない; (Ref. 5259); 最大記録サイズ: 1.00 年 (Ref. 6849)
背面の脊椎 (合計) : 0; 背鰭 (合計) : 6 - 8; 肛門の骨: 0; 臀鰭: 8 - 11; 脊つい: 38 - 43.
Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274); Occur in slow-running, tea-colored streams usually in sandy areas. Also found in swamps, small ponds and roadside ditches. Also lives in the vegetated shallows of some freshwater lakes. Water is typically acidic (pH 4.5-6.5) and darkly tannin-stained. An inhabitant of temporary waters, capable of aestivating in damp bottom sediments over summer. Spawning habits similar to G. munda. Most individuals perish after their first spawning (Ref. 44894). Feed on small insects, larvae of aquatic insects and micro-crustaceans. Breeding is associated with winter rains. Males take on a bright color pattern at the start of the breeding season (Ref. 33842).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Allen, G.R., S.H. Midgley and M. Allen, 2002. Field guide to the freshwater fishes of Australia. Western Australian Museum, Perth, Western Australia. 394 p. (Ref. 44894)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (B2ab(i,ii,iii,iv,v)); Date assessed: 09 January 2019
人間の用途
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特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
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).
栄養段階 (参照
69278): 3.0 ±0.00 se; based on food items.
Generation time: 0.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (参照
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (tm=1; tmax=1; assuming Fec<100).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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