International Journal of Zoological Research1811-97781811-9786Academic Journals Inc.10.3923/ijzr.2008.181.188D. OwolabiOlufemi 3200843The endoparasitic helminths of the gastrointestinal
tracts of mochokid upside-down catfish, Synodontis membranaceus
(Geoffroy Saint Hilarie, 1809) caught from Jebba Lake, Nigeria with gill
nets of various mesh sizes were examined for 24 months (April 2002-March
2004). Out of 1,208 fish specimens examined, 438 (36.25%) were infected
with 1,321 helminth parasites, comprising two nematodes (Procamallanus
laevionchus and Cucullanus species) and a cestode (Polyonchobothrium
species). Parasite population data showed that nematodes had higher prevalence
(27.81%) and mean intensity (03.29) than cestode (prevalence: 08.44%;
mean intensity: 02.09). The prevalence of endoparasites was highest in
the intestine, while the oesophagus recorded the lowest. Multiple infections
and isolation of parasites from the liver and gall bladder are reported
for the first time in Synodontis species. There was no significant
difference (p>0.05) between the infestation of male and female specimens.
However, the relationship between host size and parasite burden showed
that fish below 20 cm SL were free from infection, while infection increased
from 27.68% in fish between 20-27 cm SL to a significantly higher (p<0.05)
value (67.61%) in fish above 27 cm SL. Infestation of endoparasites was
more prevalent (p<0.05) in the dry season than in the rainy season.
The implications of these results on the management and culture of Synodontis
membranaceus are discussed.]]>Adeniji, H.A.,19911991Amin, O.M.,198563924927Araoye, P.A.,2005Synodontis schall (Pisces: Mochokidae) and its Nematode in Asa Lake, Ilorin, Nigeria.]]>208184Auta, J., S.J. Oniye and J.A. Adakole,1999Synodontis species in Zaria, Nigeria.]]>24753Bishai, H.M. and Y.B. Abu Gideiri,1965Synodontis at Khartoum. II. Food and feeding habits.]]>2698113Bush, A.O., K.D. Lafferty, J.M. Lotz and A.W. Shostak,1997et al. revisited.]]>83575583Diamant, A.,1989Sclerocollum rubrimaris Schmidt and Paperna, 1978 (Rhadinorhynchidae: Gorgorhynchinae) from wild population of rabbit fish (genus, Siganus) in the northern Red Sea.]]>34387397Ezenwaji, H.M.G. and P.C.O. Ilozumba,1992Clarias species (Osteichthyes: Clariidae) from Nigeria.]]>106391400Geets, A. and F. Ollevier,1996Siganus sutor (Valenciennes, 1835)) of the Kenyan Coast: Distribution within the host population and microhabitat use.]]>1262136Holmes, J.C.,197351333347Ibrahim, C., A. Needet, S.A. Aysel, A.O. Argun and G. Ercument,2001Cyprio carpio L., 1758) captured from River Seyhan, Turkey.]]>188790Imevbore, A.MA.,19701970pp: 87-98pp: 87-98King, R.P.,1996194552Moravec, F. and J. Rehulka,1987Railletnema synodontisi Vassiliades, 1973, from the aquarium record of upside-down catfish, Synodontis eupterus Boulenger.]]>36163164Oniye, S.J. and T.O. Aken’Ova,2002Rhadinorhynhus horridus (Luhe, 1912) in Hyperopisus bebe occidentalis (Gunther) in Zaria dam.]]>14148Oniye, S.J., O.J. Ajanusi, R.A.I. Ega and R.I.S. Agbede,2002Hyperopisus bebe occidentalis (Gunther) in Zaria dam, Nigeria.]]>298105Oniye, S.J., D.A. Adebote and O.I. Ayanda,2004Clarias gariepinus (Teugels) in Zaria, Nigeria.]]>197175Onyia, A.D.,19701970Oswald, E. and J.H. Hulse,19821982Otubusin, S.O.,19861986pp: 3537Owolabi, O.D.,2005Synodontis membranaceus Geoffroy Saint Hilarie in Jebba lake, Nigeria.]]>2005Owolabi, O.D.,2007Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba Lake, Nigeria]]>1036443649Paperna, I.,19961996Rohde, K.,19841984pp: 193-319pp: 193-319Saliu, J.K. Jr.,1998Philometra species infection on Brycinus nurse from Asa reservoir, Ilorin, Nigeria.]]>101115Shotter, R.A.,19773583600Soulsby, E.L.J.,19827th Edn.,pp: 809pp: 809Sowemimo, O.A. and S.O. Asaolu,2004Limicolaria aurora in Ile-Ife, Nigeria.]]>6105107Ukoli, F.M.A.,19691969pp: 269-283pp: 269-283Williams, H.M. and A. Jones,19941st Edn.,pp: 539pp: 539Willoughby, N.G.,1974Synodontis (Siluroidei) in Lake Kainji, Nigeria.]]>1974Woodland, W.N.F.,192367435472Yamaguti, S.,1959Systema helminthum, Volume II. The Cestodes of Vertebrates.]]>pp: 860pp: 860Yamaguti, S.,1961Systema helminthum, Nematodes of Vertebrates.]]>pp: 1261pp: 1261