分類 / 名前
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Siluriformes (Catfishes) >
Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
Eponymy: John Samuel Budgett (1872–1904) was an embryologist, ichthyologist, naturalist, artist and explorer, employed by Trinity College, Cambridge. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.2 - 7.2; dH range: 6 - 20. Tropical; 22°C - 27°C (Ref. 12468); 10°N - 4°N
Africa: endemic to the Niger River basin, including the Benue (Ref. 57223). Report from the Ouémé (Benin) (Ref. 3202) refers to misidentified S. melanopterus specimens (see DVD version of Ref. 57223). Report from the Chari-Logone (Chad basin) in Central African Republic (see map in Ref. 57223) questionable.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm ?, range 20 - ? cm
Max length : 40.0 cm SL オス/雌雄の選別がない; (Ref. 31256)
背面の脊椎 (合計) : 1; 肛門の骨: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; maxillary barbels distinctly fringed, longer than head, unbranched and lacking tubercles, but with a broad, long and dark basal membrane; outer mandibular barbels with few simple, short ramifications, inner mandibular barbels with tuberculate, subdivided branches; mandibular teeth moderately developed, numbering 45-64 (64 in the holotype); denticulations on pectoral-fin spines weaker on outer than on inner margin; dorsal-fin spine smooth anteriorly; first ray of dorsal and pectoral fins, as well as both caudal-fin lobes extended into filaments; humeral process pointed, granulose, its ventral margin keeled and bearing 3 backward-pointing spines (sometimes only 1 or 2 in young individuals); adipose fin normally developed and distinctly separated from rayed dorsal fin (Ref. 57223).
Coloration: ground colour uniformly greenish-yellow; series of black spots sometimes present on fins in young individuals (Ref. 57223).
Body shape (shape guide): elongated.
Oviparous (Ref. 205). Maximum size 395mm TL, 297mm SL (Ref. 57223).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
Paugy, D. and T.R. Roberts, 2003. Mochokidae. p. 195-268 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57223)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 商業
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01096 (0.00459 - 0.02620), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
2.8 ±0.3 se; based on size and trophs of closest relatives |
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Generation time |
3.6 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
回復力 (参照 120179) |
手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.3). |
漁業の脆弱性 (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |
価格帯 (Ref. 80766) |
Unknown.
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