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).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.0 - 7.5; dH range: ? - 25. Tropical; 21°C - 24°C (Ref. 2060); 35°N - 4°N
Africa: basins of Nile (Ref. 3202, 28714), Niger (including the Benue), Volta and Chad (Ref. 57223).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 26.0 cm SL オス/雌雄の選別がない; (Ref. 31256)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 1; 肛門の骨: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; eye large, at least 24% of head length and 33% of head width; post-orbital length at least 60% of snout length; maxillary barbels slightly longer than head, unbranched, without tubercles but with a light, well visible, broad basal membrane; outer mandibular barbels with numerous, tuberculate ramifications; mandibular teeth long, numbering 16-24 (20 in the holotype); dorsal-fin spine smooth anteriorly; denticulations of pectoral-fin spines finer on outer than on inner margin; first branched dorsal-fin ray prolonged into a very long filament that may reach to caudal-fin base; humeral process poorly developed, granulose, rounded posteriorly and very slightly keeled, at least on anterior part of ventral margin; adipose fin truncate posteriorly and distinctly separated from rayed dorsal fin; outer margins of caudal-fin lobes black-edged; body covered with large spots (Ref. 57223).
Coloration: back brownish, sides yellowish, belly lighter; body covered with black spots, except on belly; dorsal filament as well as outer rays of caudal-fin lobes black; young individuals nearly same colour pattern as adults (Ref. 57223).
Maximum SL was recorded at 22.3 cm, max. TL at 27.5 cm (Ref. 57223). Oviparous (Ref. 205).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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
用具
特記事項
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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=0.01096 (0.00594 - 0.02026), b=2.96 (2.80 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 2.9 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
