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Comparative Study on the Gut Analysis of Mormyrus rume Found in Kainji Lake and River RIma
Current Issue
Volume 9, 2021
Issue 3 (September)
Pages: 31-36   |   Vol. 9, No. 3, September 2021   |   Follow on         
Paper in PDF Downloads: 17   Since Dec. 21, 2021 Views: 247   Since Dec. 21, 2021
Authors
[1]
Adamu Ibrahim, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
[2]
Obaroh Israel Olusegun, Department of Animal and Environmental Biology, Kebbi State University of Science and Technology, Aliero, Nigeria.
[3]
Yem Innocent Yakubu, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
[4]
Jibril Hussaini, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
[5]
Haruna Mohammed Kudu, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
[6]
Kabiru Haruna, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
[7]
Yezeed Salawu, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
[8]
Mohammed Shamsudeen, National Institute for Freshwater Fisheries Research, New-Bussa, Nigeria.
Abstract
The study of gut analysis of Mormyrus rume in Kainji Lake and River Rima was carried out from January to December 2018. Five hundred and thirty-one (531) samples from Kainji Lake and four hundred and seventy-seven (477) samples from River Rima (making a total of 1,008 samples), were collected from fish landing sites of the water bodies and subjected to standard methods of analysis. The gut contents of the fish samples were analysed using two methods: numerical and frequency of occurrence. Fourteen (14) groups of food items, namely Phytoplankton, Diatoms, Plant tissues, Insects (head, wing, leg), Fish remains (bones, scales), Nematodes, Rice grains, Leaf parts, Annelids, Insect larvae, Shells, Protozoa, Sand particles and Deposit detritus were recorded in the Lake and fifteen (15) food items namely Phytoplankton, Diatoms, Plant tissues, Insects (head, wing, leg), Fish remains (bones, scales), Nematodes, Rice grains, Leaf parts, Annelids, Insect larvae, Shells, Protozoa, Sand particles, Deposit detritus, and Sorghum seeds were recorded in the River. Evidence from the gut analyses of this study showed that M. rume is an omnivore in these water bodies, with selective preference for diets of other fishes, and leaf parts. There was high feeding intensity in both water bodies, which was evident from low empty stomachs recorded in the study.
Keywords
Gut Contents, Kainji Lake, Momyrus rume, River Rima, Stomach Analysis
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