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Teleostei >
Characiformes (Characins) >
Bryconidae ("Brycon characins") > Bryconinae
Etymology: Brycon: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335).
More on author: Regan.
Issue
See Howes (1982: 29-30) for remarks on taxonomy, Burcham (1988), Bussing (1993), and Horn (1997) for observations on ecology of the species. Food fish.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; 深度上下限 0 - 5 m. 熱帶; 21°C - 34°C (Ref. 36880)
Central America: Atlantic slope from Grijalva River, Mexico to eastern Panama; in the Pacific slope, only in Choluteca River basin of Honduras.
中美洲: 來自 Grijalva 河的大西洋斜坡, 墨西哥到巴拿馬東部; 在太平洋斜坡中, 只在宏都拉斯的 Choluteca 河流域中。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 27.3 range ? - ? cm
Max length : 59.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 40637); 最大體重: 4.3 kg (Ref. 40637)
Found in lakes, rivers and streams between 0 and 600 m elevation. The young feed on terrestrial and aquatic insects, leaves, fruits and seeds but become mainly herbivorous when adult. Eggs are deposited in nests located in sand bottoms of streams.
發現於湖了, 在 0 與 600 公尺海拔之間的河川與溪流。 幼魚吃陸生與水生昆蟲，樹葉，果實與種子但是變成主要食草當成熟的時候。 卵被沈積在位於溪流的砂質底部的巢。
Eggs are deposited in nests with sandy bottoms (Ref. 127435).中美洲: 來自 Grijalva 河的大西洋斜坡, 墨西哥到巴拿馬東部; 在太平洋斜坡中, 只在宏都拉斯的 Choluteca 河流域中。
Lima, F.C.T., 2003. Characidae - Bryconinae (Characins, tetras). p. 174-181. 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. 38504)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 15 November 2018
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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=0.00933 (0.00545 - 0.01597), b=3.03 (2.88 - 3.18), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.3 ±0.27 se; based on food items.
Generation time: 3.1 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.35; Fec = 701;).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
