分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Characiformes (Characins) > Alestidae (African tetras)
Etymology: Brycinus: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335).
More on author: Valenciennes.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水; 半鹹淡水大洋性; 河川洄游 (Ref. 51243). 22°C - 28°C (Ref. 12468)

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Africa: present throughout intertropical Africa (Ref. 2880, 80290, 81279). Absence from the Gambia basin is noteworthy (Ref. 81279). Present in the Nile system (Ref. 28714, 58460) up to Lake Albert (Ref. 4903) and in Lake Turkana system (Ref. 28663). Widely distributed in the Congo River basin (Ref. 5331, 42019, 42510, 45434).

Length at first maturity / 大小 / 重量 / 年齡

Maturity: L_m 18.5, range 33 - ? cm
Max length : 53.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 2880); 最大體重: 2.0 kg (Ref. 3799)

簡短描述型態特徵 | 形態測量圖

臀棘 0; 臀鰭軟條: 13 - 19. Diagnosis: fronto-parietal fontanel absent in adults, sometimes pore-like in juveniles; snout long, comprimised 3x in head length; dorsal fin origin distinctly behind pelvic fin insertion; adults large-sized; no sexual dimorphism affecting anal fin shape; 21-31 lateral line scales; 4.5 scales between lateral line and dorsal fin; 10-16 anal fin branched rays; 14-22 gill rakers on lower limb of first gill arch; 8-14 teeth in outer premaxillary row (Ref. 2880, 80290, 81279). Head length/snout length 2.6-2.9; 10-12 predorsal scales (Ref. 80290). Body depth more than 3x SL in adults (Ref. 2880, 81279).

More common in rivers than lakes; feeds on insects, crustaceans, fish, vegetation and debris (Ref. 28714). Considering the distribution of different forms (according to collection determinations), it should be noted that a B. macrolepidotus 'form' is found only in northern regions, while a B. schoutedi 'form' is found only in southern regions. However, between these two forms there appears to be mixing and intermediacy of forms. We consider that there are several populations which have evolved in a geographical gradient to produce different morphotypes of a single species (Ref. 80290).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

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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 瀕危狀態 (Ref. 130435)

無危 (LC) ; Date assessed: 16 April 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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人類使用

漁業: 商業性

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Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01072 (0.00804 - 0.01428), b=2.97 (2.92 - 3.02), in cm total length, based on LWR estimates for this species (Ref. 93245).

營養階層 (Ref. 69278): 2.8 ±0.35 se; based on food items.

Generation time: 2.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

回復力 (Ref. 120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (31 of 100).

價格種類 (Ref. 80766): Unknown.

Brycinus macrolepidotus Valenciennes, 1850

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Environment: milieu / climate zone / depth range / distribution range 生態學

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Length at first maturity / 大小 / 重量 / 年齡

簡短描述型態特徵 | 形態測量圖

生物學特性字彙 (例如 epibenthic)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

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IUCN 瀕危狀態 (Ref. 130435)

CITES

CMS (Ref. 116361)

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Brycinus macrolepidotus Valenciennes, 1850

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Environment: milieu / climate zone / depth range / distribution range 生態學

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Length at first maturity / 大小 / 重量 / 年齡

簡短描述 型態特徵 | 形態測量圖

生物學特性 字彙 (例如 epibenthic)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

IUCN 瀕危狀態 (Ref. 130435)

CITES

CMS (Ref. 116361)

對人類具威脅

人類使用

更多資訊

工具

特別的報告

下載 XML

網路資源

Estimates based on models

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簡短描述型態特徵 | 形態測量圖

生物學特性字彙 (例如 epibenthic)