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Synodontis batensoda Rüppell, 1832

Upsidedown catfish
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Synodontis batensoda
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 辐鳍鱼纲 (条鳍鱼) > Siluriformes (Catfish) > Mochokidae (Squeakers or upside-down catfishes)
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).  More on author: Rüppell.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 底中水层性; 河川洄游 (Ref. 51243).   熱帶; 23°C - 27°C (Ref. 12468); 35°N - 4°N

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: Nile (Ref. 7362), 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。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 13 - ? cm
Max length : 20.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57223); 最大体重: 1.5 kg (Ref. 3799)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 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).

生物学特性     字汇 (例如 epibenthic)

Omnivore, feeds 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.

杂食动物, 吃浮游生物,藻类与碎屑。 (参考文献 13868) 可能也吃水面的昆虫,宝刀鱼仔鱼,底栖性甲壳动物与软件动物.(参考文献 28714) 卵生的.(参考文献 205)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

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。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

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)

世界自然保护联盟红皮书 (Ref. 120744)

  最不相关 (LC) ; Date assessed: 01 May 2009

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  有毒的 (Ref. 4537)





人类利用

渔业: 商业性; 水族馆: 商业性
FAO(Publication : search) | FishSource |

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00610 - 0.03124), b=2.95 (2.77 - 3.13), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.8   ±0.33 se; Based on food items.
回复力 (Ref. 69278):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
脆弱性 (Ref. 59153):  Low to moderate vulnerability (25 of 100) .
价格分类 (Ref. 80766):   Unknown.