分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Astronotinae
Etymology: Astronotus: Greek, astra = ray + Greek, noton = back (Ref. 45335).
More on author: Heckel.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: southern parts of the Amazon (upper Madeira River) and the upper Paraguay basins; introduce elsewhere.
南美洲: 亞馬遜河流域, 在 Bolivian 亞馬遜河與在祕魯的母親 de Dios 河流域; 在巴拉圭與巴西的巴拉圭流域的巴拉納河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 24.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 36377); common length : 25.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12251)
背的軟條 (總數) : 16 - 24; 臀鰭軟條: 15 - 21. This species is distinguished from its congeners by the following characters: 2 supraneural bones; spinous process (hypurapophysis) on the anterosuperior border of the parahypural bone (hypural complex); sagitta otolith elliptical and smooth-lobed margins, rostrum process short, posterior region of the otolith straight or flat, the aspect ratio of sagitta otoliths AR = 0.585, the roundness index Rd = 0.543; morphometric index 0.735: mean head length 35.01% SL, mean diameter of the orbit 7.73% SL, mean pre-orbital depth 0.14% SL, mean snout length 5.36% SL (Ref. 126783).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 亞馬遜河流域, 在 Bolivian 亞馬遜河與在祕魯的母親 de Dios 河流域; 在巴拉圭與巴西的巴拉圭流域的巴拉納河流域。
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 04 November 2020
人類使用
漁業: 低經濟
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.00939 - 0.06419), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming Fec<1000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
