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RBT5449
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RBT54492022-06-06T18:20:04Z Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir K. Mustapha, Moshood rendimiento pesquero potencial índice morfo-edáfico conductividad profundidad media embalse potential fish yield morpho-edaphic index conductivity mean depth reservoir Morphometrics and physico-chemical parameters of Oyun reservoir, Offa, Nigeria (a small shallow tropical African Reservoir) were used to estimate the potential fish yield of the reservoir according to the morpho-edaphic index (MEI). Physico-chemical characteristics of the water body were sampled monthly from three stations between January 2002 and December 2003 with standard methods. Estimates of the potential fish yield were obtained using the physico-chemical characteristics of the reservoir and the relationship Y = 23.281 MEI 0.447, where Y is the potential fish yield in kg/ha, MEI is the morpho-edaphic index (given in µS/cm and estimated by dividing the mean conductivity by the mean depth). The reservoir mean depth and conductivity values were 2.6m and 113.10µS/cm respectively, while its potential fish yield was estimated at 125.72 kg/ha. This estimate was higher than other small shallower and larger African reservoirs. The reservoir high ionic content, high nutrient and dissolved oxygen levels, good pH, low level of pollution and shallow depth were responsible for the high estimate of the fish yield. In order to realize this high potential fish yield and sustainable exploration of the fisheries, effective management of the reservoir to curb eutrophication should be adopted, while other management practices such as stocking and conservation of desirable and indigenous fish species, implementation of fishing regulations and adoption of best management practices should be implemented. Universidad de Costa Rica 2009-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5449 10.15517/rbt.v57i4.5449 Revista de Biología Tropical; Vol. 57 No. 4 (2009): Volume 57 – Regular number 4 – December 2009; 1093–1106 Revista de Biología Tropical; Vol. 57 Núm. 4 (2009): Volumen 57 – Número regular 4 – Diciembre 2009; 1093–1106 Revista Biología Tropical; Vol. 57 N.º 4 (2009): Volume 57 – Regular number 4 – December 2009; 1093–1106 2215-2075 0034-7744 10.15517/rbt.v57i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5449/5195 Copyright (c) 2009 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
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| institution |
Universidad de Costa Rica
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| collection |
Revista de Biología Tropical
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| language |
eng
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| format |
Online
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| author |
K. Mustapha, Moshood
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| spellingShingle |
K. Mustapha, Moshood
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| author_facet |
K. Mustapha, Moshood
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| author_sort |
K. Mustapha, Moshood
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| title |
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| title_short |
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| title_full |
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| title_fullStr |
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| title_full_unstemmed |
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| title_sort |
limnological evaluation of the fisheries potentials and productivity of a small shallow tropical african reservoir
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| title_alt |
Limnological evaluation of the fisheries potentials and productivity of a small shallow tropical African reservoir
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| publisher |
Universidad de Costa Rica
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| publishDate |
2009
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| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5449
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| work_keys_str_mv |
AT kmustaphamoshood limnologicalevaluationofthefisheriespotentialsandproductivityofasmallshallowtropicalafricanreservoir
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| _version_ |
1810114541411893248
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