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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).
Eponymy: John Samuel Budgett (1872–1904) was an embryologist, ichthyologist, naturalist, artist and explorer, employed by Trinity College, Cambridge. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk; pH range: 6.2 - 7.2; dH range: 6 - 20. Tropical; 22°C - 27°C (Ref. 12468); 10°N - 4°N
Africa: endemic to the Niger River basin, including the Benue (Ref. 57223). Report from the Ouémé (Benin) (Ref. 3202) refers to misidentified S. melanopterus specimens (see DVD version of Ref. 57223). Report from the Chari-Logone (Chad basin) in Central African Republic (see map in Ref. 57223) questionable.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm ?, range 20 - ? cm
Max length : 40.0 cm SL hane/ej könsbestämd; (Ref. 31256)
Taggstrålar i ryggfenan (totalt) : 1; Taggstrålar i analfenan: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; maxillary barbels distinctly fringed, longer than head, unbranched and lacking tubercles, but with a broad, long and dark basal membrane; outer mandibular barbels with few simple, short ramifications, inner mandibular barbels with tuberculate, subdivided branches; mandibular teeth moderately developed, numbering 45-64 (64 in the holotype); denticulations on pectoral-fin spines weaker on outer than on inner margin; dorsal-fin spine smooth anteriorly; first ray of dorsal and pectoral fins, as well as both caudal-fin lobes extended into filaments; humeral process pointed, granulose, its ventral margin keeled and bearing 3 backward-pointing spines (sometimes only 1 or 2 in young individuals); adipose fin normally developed and distinctly separated from rayed dorsal fin (Ref. 57223).
Coloration: ground colour uniformly greenish-yellow; series of black spots sometimes present on fins in young individuals (Ref. 57223).
Body shape (shape guide): elongated.
Oviparous (Ref. 205). Maximum size 395mm TL, 297mm SL (Ref. 57223).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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=0.01096 (0.00459 - 0.02620), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.8 ±0.3 se; based on size and trophs of closest relatives |
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Generation time |
3.6 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.3). |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |
Priskategori (Ref. 80766) |
Unknown.
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