分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Mochokidae (Squeakers or upside-down catfishes)
倒立鯰科 (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
More on author: Rüppell.
Taxonomic Remarks
Reassigned to Synodontis based on a phylogenetic study (Ref. 79014). This species is placed in the genus Brachysynodontis in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性; 河川洄游 (Ref. 138143). 熱帶; 23°C - 27°C (Ref. 12468); 35°N - 4°N
Africa: Nile (Ref. 7362, 28714), Senegal, Gambia, upper Volta (Ref. 57223), Ogun (Ref. 31256), Osse, Niger (including the Bénoué) and Chad basins (Ref. 57223).
非洲: 尼羅河,查德,尼日 (包括 Benoue) ,塞內加爾與甘比亞流域。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ?, range 13 - ? cm
Max length : 28.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 130826); 最大體重: 1.5 kg (Ref. 3799)
背棘 (總數) : 1; 臀棘: 0. Diagnosis: gill slits extending downwards beyond pectoral-fin insertions, but remaining separate by an interval greater than eye diameter; maxillary barbels not longer than head, without tubercles or ramifications, but with a broad black membrane almost extending over their entire length; mandibular barbels without membrane; ramifications of outer mandibular barbels few and simple, those of inner mandibular barbels more numerous and subdivided; mandibular teeth slender and short, numbering 30-57; pectoral-fin spines more strongly denticulate on inner than on outer margin; anterior margin of dorsal-fin spine smooth, except for some apical serrations; humeral process rather deep, granulose and weakly keeled ventrally; adipose fin high and almost contiguous to rayed dorsal fin (proportionately
less high in young individuals)(Ref. 57223).
Coloration: typically an inverted colour pattern, the back being light grey and the belly black; pelvics, anal and caudal fins always covered with transversely aligned spots; other spots also tend to form transverse series, but these are not as well-defined; maxillary barbels bordered by a broad, black membrane (Ref. 57223).
Body shape (shape guide): fusiform / normal.
Omnivore. Adults feed on plankton, algae and detritus (Ref. 13868). May also feed on surface insects, chironomid larvae, benthic crustaceans and mollusks (Ref. 28714). Oviparous (Ref. 205). Maximum size reported as 50.0cm total length in Ref. 3799, but only 26.5cm total length in Ref. 57223.
雜食動物, 吃浮游生物,藻類與碎屑。 (參考文獻 13868) 可能也吃水面的昆蟲,寶刀魚仔魚, 底棲性甲殼動物與軟體動物.(參考文獻 28714) 卵生的.(參考文獻 205)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).非洲: 尼羅河,查德,尼日 (包括 Benoue) ,塞內加爾與甘比亞流域。
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 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 22 October 2019
人類使用
漁業: 商業性; 水族館: 商業性
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基於模型的估計
系統發育多樣性指數 (參考文獻 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=0.01698 (0.01006 - 0.02867), b=2.98 (2.84 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
2.8 ±0.33 se; based on food items. |
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Generation time |
5.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Moderate vulnerability (39 of 100). 🛈 |
價格種類 (Ref. 80766) |
Unknown.
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