Phytoplankton assemblage of a small, shallow, tropical African reservoir
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad de Costa Rica
2009
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| _version_ | 1876449052812378112 |
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| author | Moshood K. Mustapha |
| author_facet | Moshood K. Mustapha |
| contents | Phytoplankton assemblage of a small, shallow, tropical African reservoir Moshood K. Mustapha Biología hydrology nutrients water quality Freshwater reservoir phytoplankton assemblage I measured physico-chemical properties and phytoplankton in the small, shallow tropical reservoir of Oyun (Offa, Nigeria) between January 2002 and December 2003. I identified 25 phytoplankton genera in three sampling stations. Bacillariophyceae dominated (75.3%), followed by Chlorophyceae (12.2%), Cyanobacteria (11.1%) and Desmidiaceae (0.73%). The high amount of nutrients (e.g. nitrate, phosphate, sulphate and silica) explain phytoplankton heterogeneity (p<0.05). Phytoplankton was abundant during the rainy season, but the transition period had the richest assemblage and abundance. Fluctuations in phytoplankton density were a result of seasonal changes in concentration of nutrients, grazing pressure and reservoir hydrology. The reservoir is eutrophic with excellent water quality and a diverse phytoplankton assemblage: fish production would be high. These conditions resulted from strategies such as watershed best management practices (BMPs) to control eutrophication and sedimentation, and priorities for water usage established through legislation. Additional measures are recommended to prevent oligotrophy, hypereutrophy, excessive phytoplankton bloom, toxic cyanobacteria, and run-off of organic waste and salts. Rev. Biol. Trop. 57 (4): 1009-1025. Epub 2009 December 01. 2009 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44918949009 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.4 Vol.57 |
| format | Artículo científico |
| id | redalyc_44918949009 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Phytoplankton assemblage of a small, shallow, tropical African reservoir Moshood K. Mustapha Biología hydrology nutrients water quality Freshwater reservoir phytoplankton assemblage Phytoplankton assemblage of a small, shallow, tropical African reservoir Moshood K. Mustapha Biología hydrology nutrients water quality Freshwater reservoir phytoplankton assemblage I measured physico-chemical properties and phytoplankton in the small, shallow tropical reservoir of Oyun (Offa, Nigeria) between January 2002 and December 2003. I identified 25 phytoplankton genera in three sampling stations. Bacillariophyceae dominated (75.3%), followed by Chlorophyceae (12.2%), Cyanobacteria (11.1%) and Desmidiaceae (0.73%). The high amount of nutrients (e.g. nitrate, phosphate, sulphate and silica) explain phytoplankton heterogeneity (p<0.05). Phytoplankton was abundant during the rainy season, but the transition period had the richest assemblage and abundance. Fluctuations in phytoplankton density were a result of seasonal changes in concentration of nutrients, grazing pressure and reservoir hydrology. The reservoir is eutrophic with excellent water quality and a diverse phytoplankton assemblage: fish production would be high. These conditions resulted from strategies such as watershed best management practices (BMPs) to control eutrophication and sedimentation, and priorities for water usage established through legislation. Additional measures are recommended to prevent oligotrophy, hypereutrophy, excessive phytoplankton bloom, toxic cyanobacteria, and run-off of organic waste and salts. Rev. Biol. Trop. 57 (4): 1009-1025. Epub 2009 December 01. 2009 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44918949009 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.4 Vol.57 |
| title | Phytoplankton assemblage of a small, shallow, tropical African reservoir |
| topic | Biología hydrology nutrients water quality Freshwater reservoir phytoplankton assemblage |
| url | https://www.redalyc.org/articulo.oa?id=44918949009 |