分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335).
Eponymy: Dr Albert Karl Ludwig Gotthilf Günther (1830–1914) was a German-born British zoologist, ichthyologist and herpetologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 6.0 - 7.0; dH range: 4 - 10; 非遷移的. 熱帶; 22°C - 25°C (Ref. 1672)
Africa: endemic to Unguja Island, Zanzibar archipelago, eastern Tanzania (Ref. 122075).
非洲: 桑吉巴的島的特有種, 東方的坦尚尼亞。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 122075); 3.2 cm SL (female)
背棘 (總數) : 0; 背的軟條 (總數) : 15 - 16; 臀棘: 0; 臀鰭軟條: 15 - 16; 脊椎骨: 28. Diagnosis: It is distinguished from all congeners by the combination of the following character states: caudal fin red with black posterior margin in males; flank and fins without dark spots in females; pre-dorsal length in males 57.5-61.4% of standard length; 3 + 12-14 gill-rakers on first branchial arch; 27-28 scales in longitudinal series; 14 series of scales around caudal peduncle; single longitudinal row of scales between anterior supraorbital series of neuromasts; anterior supraorbital series of neuromasts arranged in two sections, anterior section with one well-developed neuromast, posterior with two; three neuromasts in posterior supraorbital series; 26-27 caudal-fin rays; 28 vertebrae; second proximal radial of dorsal fin between neural spines of 10th and 12th vertebrae (Ref. 122075).
Found in temporary pools, swamps, ditches and small streams (Ref. 3788). Used for biological control of mosquitos (Ref. 3788). One of the so called 'annual fishes' which has eggs that can withstand seasonal droughts (Ref. 1739). A bottom spawner, 3-4 months incubation. Quite popular with aquarists; difficult to maintain in an aquarium (Ref. 27139).
發現於季節性的水池與溪流了。 (參考文獻 3788) 用來了蚊子的生物學控制。 相當受水族業者的歡迎。 一那如此被稱為有能抵抗季節性的乾旱的卵的 '一年一次的魚'.(參考文獻 1739) 底部產卵魚， 3-4 個月孵育時間。 難以維持在一個水族館.(參考文獻 27139)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Thrives in seasonal rainwater pools. Spawns throughout the short breeding period until the pool dries up and all fish die except their drought-resistant eggs. Eggs go through a dry period of many weeks. When rain comes and pool fills, most of the eggs begin to develop and hatch within hours. Fry grow very fast. In only 6 to 8 weeks they are sexually mature and start breeding (Ref. 7062). In aquaria, males showed aggressive behavior toward each other. Females were being pushed down to the substratum by the males as a prelude to spawning.非洲: 桑吉巴的島的特有種, 東方的坦尚尼亞。
Huber, J.H., 1996. Killi-Data 1996. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Atherinomorpha, Pisces). Société Française d'Ichtyologie, Muséum National d'Histoire Naturelle, Paris, France, 399 p. (Ref. 27139)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
瀕危 (EN) (B1ab(iii,iv)+2ab(iii,iv)); Date assessed: 09 December 2018
人類使用
漁業: 沒有興趣; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00472 - 0.02669), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (tm= 0.12-0.15; tmax < 1 yr).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
