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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: Dr Gustav Adolf Fischer (1848–1886) was a German physician, naturalist and explorer of East and Central Africa. [...] (Ref. 128868), visit book page.
More on author: Hilgendorf.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό; pH range: 6.0 - 8.0; dH range: 5 - 25; εύρος βάθους 0 - 70 m (Ref. 34291), usually 0 - 30 m (Ref. 34291). Tropical; 22°C - 26°C (Ref. 2060); 3°N - 5°S
Africa: Lakes Victoria, Nabugabo and Kyoga, affluent rivers of Lake Victoria, Victoria Nile (Ref. 4903). Also found in the Lake Rukwa drainage (Ref. 27292), the Malagarazi River (Ref. 54847, 98755) and the Middle Akagera system (Ref. 46152, 54979). Specimens from Kingani River (=Ruvu River) are misidentifications of S. orientalis (Ref. 78218).
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm 9.6, range 10 - 12 cm
Max length : 17.7 cm SL αρσενικό/απροσδιόριστο; (Ref. 34290)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 1; Μαλακές ραχιαίες ακτίνες (συνολικά) : 7. 32-54 mandibular teeth. Maxillary barbels reaching almost to the origin of the pelvic fin in some specimens and to the tip of the humeral process in others. Outer mandibular barbels with slender branches, inner pair with shorter, but slender branches. Marbled yellowish-brown (marbling is extremely variable, some individuals uniformly brown) (Ref. 34290).
Lives in streams and rivers and in lakes, where it prefers shore regions (Ref. 78218). More common in rivers than in lakes (Ref. 12526). Common in marginal vegetation of Kagera River (Ref. 4903). Replaces S. victoriae in shallow waters of Lake Victoria (Ref. 4903), prefers areas less than 20 m deep (Ref. 34290). Feeds on insects (Povilla and chironomid larvae) and molluscs (Ref. 12526). Oviparous (Ref. 205). Rarely grows to lengths greater than 15 cm SL (Ref. 34290).
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
Gosse, J.-P., 1986. Mochokidae. p. 105-152. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3202)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
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=0.01549 (0.00697 - 0.03443), b=2.90 (2.72 - 3.08), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.4 ±0.45 se; based on food items.
Generation time: 1.7 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Ελαστικότητα (Ref.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Fec = 200).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
![Image of Synodontis afrofischeri (Fischer\](/images/thumbnails/jpg/tn_Syafr_u0.jpg "Image of Synodontis afrofischeri (Fischer\")
