分類 / Names
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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Brycinus: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335).
More on authors: Nichols & LaMonte.
Issue
Affinities: B. bartoni is similar to B. longipennis; the two are distinguished by predorsal scale counts; it is also similar to B. intermedius and B. tholloni but has fewer scales in transverse row between lateral line and dorsal fin origin (Ref. 80290).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 外洋の. Tropical
Africa: found in the Ngounié River, a tributary of the Ogowe River in Gabon (Ref. 80290) and in the Kouilou-Niari basin in the Republic of Congo (Ref. 92841).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 9.2 cm SL オス/雌雄の選別がない; (Ref. 80290); 7.4 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
Diagnosis: fronto-parietal fontanel narrow, pore-like, but present; head length/snout length 3.5; 34-35 lateral line scales; 5.5 scales between lateral line and dorsal fin; 13 predorsal scales; 18 anal fin branched rays; 12-14 gill rakers on lower limb of first gill arch; 6 teeth in outer premaxillary row (Ref. 80290).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Paugy, D. and S.A. Schaefer, 2007. Alestidae. p. 347-411. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Vol. 1. Coll. Faune et Flore tropicales 42. Istitut de recherche pour le développement, Paris, France, Muséum nationale d'histoire naturelle, Paris, France and Musée royale de l'Afrique centrale, Tervuren, Belgique. 800 p. (Ref. 80290)
IUCNのレッドリストの状況は (Ref. 130435)
絶滅危惧 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 16 February 2009
Human uses
用具
特記事項
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インターネットの情報源
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=0.01230 (0.00541 - 0.02797), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
