分類 / Names
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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).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.8 - 7.2; dH range: ? - 25; potamodromous (Ref. 51243). Tropical; 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).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm ?, range 25 - ? cm
Max length : 46.0 cm SL オス/雌雄の選別がない; (Ref. 57223)
簡単な記述
形態学 | 形態計測学
背面の脊椎 (合計): 1; 肛門の骨 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).
Occurs in deep water close to the shore. Omnivore, 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).
Life cycle and mating behavior
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)
Human uses
水産業: 商業
より多くの情報
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ(食中毒の名前)速度泳ぐ 型式カマOtoliths脳視覚
用具
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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=0.01479 (0.00933 - 0.02344), b=2.92 (2.79 - 3.05), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.40 se; based on food items.
回復力 (Ref.
120179): 手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.14-0.55).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).