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).
Taxonomic Remarks
Reassigned to Synodontis based on a phylogenetic study by Vigliotta (2008: Ref. 79014). This species is placed in the genus Hemisynodontis in Eschmeyer (CofF ver. May 2011: Ref. 86870).
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; pH range: 6.8 - 7.2; dH range: ? - 25; 河川洄游 (Ref. 138143). 熱帶; 22°C - 25°C (Ref. 2060); 35°N - 4°N
Africa: Nile basin (Ref. 3202, 28714), Senegal, Gambia, Volta, Niger (including Benue) and Chad (Ref. 7362, 57223).
非洲: 查德，尼日 (包括 Benoue)(參考文獻 7362) ，塞內加爾，甘比亞與佛塔河流域; 也在非洲北部的尼羅河。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ?, range 25 - ? cm
Max length : 46.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 57223)
背棘 (總數) : 1; 臀棘: 0. Diagnosis: gill slits extending downwards beyond pelvic-fin insertions to the midline of isthmus; maxillary barbels not longer than head, lacking tubercles and ramifications, but with a broad, black membrane extending over their entire length; mandibular barbels with a broad black membrane; outer and inner mandibular barbels with few and simple ramifications, and membranous at tips; mandibular teeth short, numbering 8-16; pectoral-fin spines more strongly denticulate on inner than on outer margin; dorsal-fin spine smooth, except for weak serrations present on posterior margin in some specimens; humeral process deep, short, granular and not keeled ventrally; adipose fin high, long and contiguous to rayed dorsal fin (Ref. 57223).
Coloration: typically inverted colour, the back being uniformly whitish-grey and the belly black; fins greyish, without spots; maxillary and mandibular barbels (particularly the outer pair) bordered by a broad, black membrane (Ref. 57223).
Body shape (shape guide): fusiform / normal.
Adults occur in deep water close to the shore. Omnivore, that feeds on plankton 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 (length type not given)(Ref. 31256).
出現於深水域接近海岸。 雜食動物, 吃浮游生物與碎屑。 (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: 查德，尼日 (包括 Benoue)(參考文獻 7362) ，塞內加爾，甘比亞與佛塔河流域; 也在非洲北部的尼羅河。
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: 15 April 2020
人類使用
漁業: 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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00908 - 0.02301), b=2.93 (2.80 - 3.06), 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): 3.1 ±0.40 se; based on food items.
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.14-0.55).
釣魚的脆弱性 (Ref.
59153): Low to moderate vulnerability (27 of 100).
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