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Atheriniformes (Silversides) >
Atherinidae (Silversides) > Craterocephalinae
Etymology: Craterocephalus: Greek, krater, -eros = bowl, mixing vessel + Greek, kephale = head (Ref. 45335).
More on author: Whitley.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性; pH range: 7.0 - ? ; dH range: 12 - ?. Tropical; 25°C - 30°C (Ref. 2060)
Oceania: endemic to Australia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 6.5 cm SL オス/雌雄の選別がない; (Ref. 44894); common length : 4.0 cm SL オス/雌雄の選別がない; (Ref. 44894)
Distinguished from all other species of that genus by a combination of the following: greatest body depth 3.1-4.1 (3.8); least body depth 8.0-9.9 (9.2); origin of pectoral to anus 2.8-3.1 (3.0), all in SL. Eye 2.6-3.5 (2.9) in head. Dorsal process of premaxilla 1.4-2.2 (1.8) in eye. Lips in premaxilla 2.6-3.7 (3.1). Predorsal scales 10-12 (10.9). Origin of first dorsal from one scale behind to 2.5 scales in front of tip of pectoral fin (Table 1). Unique in dentition and length of spines in first dorsal fin. Differs osteologically from other members of the genus by a combination of the following: shape of premaxilla and maxilla; lateral ramus of premaxilla with greatly reduced secondary process; shape of nasal bone; and with basibranchial toothplate present. Differs genetically from other species only in allele frequencies at the following loci: FUM, MDH and MPI (Ref. 26703).
Body shape (shape guide): elongated.
Occurs in clear, flowing streams, as well as in still water. Found in well-vegetated stream and lake margins. Forms moderate-sized shoals, swimming just below the surface (Ref. 44894). Feeds on insects and their larvae, small crustaceans, snails and some algae. Although attractive, they are delicate and usually difficult to maintain in captivity (Ref. 44894).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Crowley, L.E.L.M. and W. Ivantsoff, 1992. Redefinition of the freshwater fish genus Craterocephalus (Teleostei: Atherinidae) of Australia and New Guinea with an analysis of three species. Ichthyol. Explor. Freshwat. 3(3):273-287. (Ref. 26703)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
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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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (参照
69278): 3.0 ±0.40 se; based on food items.
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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栄養素 (Ref.
124155): Calcium = 328 [126, 752] mg/100g; Iron = 1.54 [0.79, 2.81] mg/100g; Protein = 18.4 [16.1, 20.7] %; Omega3 = 0.358 [0.108, 1.248] g/100g; Selenium = 30.5 [10.6, 85.0] μg/100g; VitaminA = 152 [47, 424] μg/100g; Zinc = 3.54 [2.29, 5.27] mg/100g (wet weight);
