分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Brevimyrus: Latin, brevis = short, brief + Greek, myros = the male of morey eel (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.0 - ?. 22°C - 24°C (Ref. 12468)
Africa: majority of the large Sahelo-Sudanese basins, Senegal, Gambia, Niger, Volta, Ouémé, Chad (Ref. 81274); also known from White Nile (Ref. 3203).
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 11.0 range ? - ? cm
Max length : 15.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 57961)
簡短描述
型態特徵 | 形態測量圖
背棘 (總數): 0; 背的軟條 (總數): 14-20; 臀棘 0; 臀鰭軟條: 24 - 30. LS/D 2.9-4.3;LS/PD 10.8-15.5. Pectoral fin longer or at least as long as head. Globular swelling on chin reduced. Base of dorsal fin 0.51-0.78 x of the anal fin base. Generally uniformly silver color but may sometimes be irregularly mottled on the sides.
Distribution area is mainly continental and it is rarely found in the lower courses of basins (Ref. 81274). Inhabits fringing vegetation in the Sudd and migrates onto the floodplain to spawn (Ref. 28714). Bottom feeding insectivore (Ref. 28714). It possesses electro receptors over the entire head, the dorsal and ventral regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Also sensitive to sound frequencies (Ref. 10831).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
人類使用
漁業:
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00659 - 0.02000), b=2.85 (2.70 - 3.00), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming Fec < 5,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
