分類 / Names
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Teleostei >
Atheriniformes (Silversides)
銀漢魚目 (Silversides) >
Atherinidae (Silversides)
銀漢魚科 (Silversides) > Craterocephalinae
Etymology: Craterocephalus: Greek, krater, -eros = bowl, mixing vessel + Greek, kephale = head (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; 26°S - 27°S
Oceania: restricted to the Dalhousie Springs, South Australia.
大洋洲: 已知只來自 Dalhousie 泉水噴水井的系統了, 澳洲南部大約 200 公里愛麗湖西北。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 8.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6398)
Inhabits warm water artesian springs and their outlet streams (Ref. 2906, 44894). Tolerates temperatures ranging from 20°-39°C, but has been recorded briefly entering water of 41.8°C to feed. A diurnally-active species which has one of the highest recorded voluntary temperature tolerances of any fish species in the world (Ref. 44894). Feeds on gastropods, aquatic plants (Ref. 2906), green filamentous algae, detritus and small invertebrates which are taken from the bottom (Ref. 44894). Dimorphic: bigger females with concave head and flat belly, long cylindrical sac-like ovary on left side of fish while the yellow-white testis lies on the right side. Appears to suffer thermal stress above 38°C but can tolerate low oxygen levels (Ref. 7276).
棲息於溫暖的水噴水井的泉水與他們的出口溪流。 吃腹足動物與水生植物。 (參考文獻 2906) 雙型性的: 較大的雌性有凹的頭部與平坦的腹面, 長的圓筒形的囊狀卵巢在魚左邊上然而黃色-白色的精巢躺在右邊上。 似乎耐熱超過 38 °C 但是能容忍低溶氧量.(參考文獻 7276)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
大洋洲: 已知只來自 Dalhousie 泉水噴水井的系統了, 澳洲南部大約 200 公里愛麗湖西北。
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
極危 (CR) (B1ab(i,ii,iii,iv)); Date assessed: 07 February 2019
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (參考文獻
69278): 2.7 ±0.40 se; based on food items.
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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