Description:
Synodontis denticulatus is an endemic from the
middle Lufira Basin and its associated tributaries
and lakes. The species shows close morphological resemblance
to Synodontis
greshoffi and
Synodontis unicolor, which are widespread
Congo Basin and Bangweulu-Mweru endemic species, respectively.
However, it differs from both S. greshoffi
and S. unicolor by its non-villous skin (v.
villous skin), strong and numerous serrations on the
posterior margin of the dorsal spine (v. weak and
fewer serrations), weak and few serrations on the
posterior margin of the pectoral spine (v. strong
and numerous serrations), relatively short maxillary
barbels (v. long) and its small maximum standard length
(89.1 mm LS v. 148.0 and 190.7 mm LS respectively).
A DNA barcoding study (coI, mtDNA) revealed that S.
denticulatus forms a distinct genetic clade with
a genetic distance of 2.18% with S. greshoffi
and 0.84% with S. unicolor. Synodontis
denticulatus is caught regularly and abundantly
as a by-catch in the gillnet fisheries in the middle
Lufira lakes. Owing to its small overall size and
large bony head, the species has usually no real commercial
value but is an important food fish for the fishermen's
families. AquariumCare:
In groups of 5 or more individuals; minimum aquarium
size 80 cm. A very social Synodontis. Diet:
Oviparous, Feeds mainly at night on insects, crustaceans
and plant matter. A good diet of a good quality flake
food, tablet food, frozen bloodworm and live food
such as daphnia should suffice. Etymology:
From the Latin denticulatus, meaning denticulate or
with small teeth, a reference to the well-marked and
quite numerous denticles on the posterior margin of
the dorsal spine of this species.
Common
Name:
None
Synonyms:
None
Family:
Mochokidae
Distribution:
Africa:
Middle Lufira River drainage, upper Congo River basin,
Democratic Republic of Congo.
Size:
9.0cm. (3½ins)
Temp:
23-30°C (73-87°F)
p.H.
6.5-8.5.
Reference:
Abwe, E.; Snoeks, J.;
Manda, B.K.; Mutambala, P.K.; Kalumba, L.N.; Bragança,
P.H.N.; Kipanga, K.; Mulelenu, C.M.; Kayaba, M.K.I.;
Manda, A.C.; Vreven, E.J.W.M.N. Checklist
of the Fishes of the Kundelungu National Park (Upper
Congo Basin, DR Congo): Species Diversity and Endemicity
of a Poorly Known Ichthyofauna. Diversity 2023, 15,
259.
Froese, R. and D. Pauly. Editors. 2022. FishBase.
World Wide Web electronic publication. www.fishbase.org,
( 08/2022 ).
Kasongo Ilunga, M.: Abwe, E., E. Decru, A. Chocha
Manda and E. Vreven, 2020. Description of
a new small-sized Synodontis species (Siluriformes:
Mochokidae) that is important for local subsistence
fisheries in the middle Lufira (upper Congo River,
DR Congo). J. Fish Biol. 96(5):1142-1159.
Olaf LF Weyl, Albert Chakona, Journal of
Fish Biology special issue on The Biology and Ecology
of African Freshwater Fishes, Journal of Fish Biology,
10.1111/jfb.14362, 96, 5, (1075-1076), (2020).
Synodontis
denticulatus
Lufira River, near its confluence with the Kafila River (Kienge
Village)
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