The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria
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| Formato: | Online |
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Universidad de Costa Rica
2008
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5634 |
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RBT56342022-06-06T18:22:59Z The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria David Owolabi, Olufemi S. membranaceus alimento actividad trófica lago Jebba Nigeria food trophic activity Jebba lake Dietary habits of the up side-down Mochokid catfish, Synodontis membranaceus were investigated for 24 months (April 2002-March 2004, in Jebba lake, Nigeria) using frequency of occurrence, numerical, gravimetric and index of relative importance (RI) methods. The fish is euryphagus and feeds more at night. RI values indicate that 10 of the 16 food items were major diet components. The main five food categories are detritus (10.64 %), Aspatharia (9.08 %), plant parts (8.85 %), seeds (8.61 %) and Spirogyra (8.43 %), while the 5 less prominent food categories were gastropods (7.05 %), insect appendages (6.88 %), copepods (6.31 %), adult Povilla adusta (5.89 %) and coleoptera larvae (5.36 %). The remaining six food items, dragon flies, P. adusta larvae, chironomid larvae, Daphnia, water mites and fish scales had RI values considerably under 5 %. The prominence of detritus in the diet indicated that the fish is a bottom or benthic feeder. The wide variability in food supply enables S. membranaceus to maintain its overwhelming prominence in Jebba lake, and its euryphagus habit makes it suited for pond culture. Universidad de Costa Rica 2008-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5634 10.15517/rbt.v56i2.5634 Revista de Biología Tropical; Vol. 56 No. 2 (2008): Volume 56 – Regular number 2 – June 2008; 931–936 Revista de Biología Tropical; Vol. 56 Núm. 2 (2008): Volumen 56 – Número regular 2 – Junio 2008; 931–936 Revista Biología Tropical; Vol. 56 N.º 2 (2008): Volume 56 – Regular number 2 – June 2008; 931–936 2215-2075 0034-7744 10.15517/rbt.v56i2 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5634/5378 Copyright (c) 2008 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
David Owolabi, Olufemi |
| spellingShingle |
David Owolabi, Olufemi The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| author_facet |
David Owolabi, Olufemi |
| author_sort |
David Owolabi, Olufemi |
| title |
The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| title_short |
The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| title_full |
The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| title_fullStr |
The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| title_full_unstemmed |
The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| title_sort |
dietary habits of the upside-down catfish, synodontis membranaceus (osteichthyes: mochokidae) in jebba lake, nigeria |
| title_alt |
The dietary habits of the upside-down catfish, Synodontis membranaceus (Osteichthyes: Mochokidae) in Jebba lake, Nigeria |
| publisher |
Universidad de Costa Rica |
| publishDate |
2008 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5634 |
| work_keys_str_mv |
AT davidowolabiolufemi thedietaryhabitsoftheupsidedowncatfishsynodontismembranaceusosteichthyesmochokidaeinjebbalakenigeria AT davidowolabiolufemi dietaryhabitsoftheupsidedowncatfishsynodontismembranaceusosteichthyesmochokidaeinjebbalakenigeria |
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