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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
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक; पोटामोड़िरोमस (Ref. 51243). Tropical; 23°C - 27°C (Ref. 12468)
Africa: basins of the Senegal, Gambia, Niger (including Benue), Volta and Chad (Ref. 57223). Also in the Densu system (Ghana) and Kwa Ibo (Nigeria) (Ref. 57223).
Length at first maturity / आकार / वज़न / Age
Maturity: Lm ?, range 12 - ? cm
Max length : 49.0 cm TL पुल्लिंग / अलिंग; (Ref. 57223)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण) : 1; गुदा कांटा: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; post-orbital length at least 60% of snout length; maxillary barbels longer than head, unbranched, without tubercles and lacking a distinct basal membrane; outer and inner mandibular barbels with numerous long and simple ramifications; mandibular teeth numbering 19-28 (28 in the lectotype); denticulations of pectoral-fin spines weaker and more dense on outer than on inner margin; dorsal-fin spine smooth anteriorly, except for a few apical denticles; humeral process twice as long as deep, granulose, pointed and slightly keeled ventrally; adipose fin well developed and distinctly separated from rayed dorsal fin; sides covered with big black ocellated spots (with a pale centre); no black spot behind dorsal fin (Ref. 57223).
Coloration: colour rather light; sides and adipose fin marked with large black spots, sometimes with light centres resembling eyespots (ocelli); presence of such ocelli visible particularly in large individuals; adults usually with small spots aligned on caudal fin; speckled pattern extends unto all fins in young specimens, fading subsequently with growth (Ref. 57223).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
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)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
मात्स्यिकी: व्यापारिक
साधन
Special reports
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इंटरनेट स्रोत
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=0.01778 (0.00954 - 0.03315), b=2.93 (2.77 - 3.09), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.41 se; based on food items.
लौटाव (Ref.
120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
