Water quality and planktonic community of Owalla Reservoir, Osun State, Southwest Nigeria

Autor: Helen Yetunde Omoboye, Adedeji Idowu Aduwo, Henry Adewole, Israel Funso Adeniyi
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Acta Limnologica Brasiliensia, Vol 34 (2022)
Druh dokumentu: article
ISSN: 2179-975X
2179-975x
DOI: 10.1590/s2179-975x1820
Popis: Abstract Aim Owalla Reservoir, one of the largest and oldest man-made lakes in Osun State supplies potable water to many towns in the state including the state capital, Osogbo. Active fishing activities also takes place in the lake. Inspite of the importance of the reservoir, information on the planktonic community and physico-chemical water quality are scarce. Therefore, this study investigated the water quality and plankton composition of Owalla Reservoir, Osun State, Nigeria, from October 2012 to November 2013 with a view to providing baseline information on limnology of the reservoir. Methods Seven sampling stations (designated Stations 1-7) were established as representatives of the zones and regions of the reservoir and sampling was conducted quarterly. At Stations 1 and 3, only surface water samples were collected while water samples were collected from the surface, mid-depth and close to the bottom at other stations. Samples for total plankton and physico-chemical water quality were analyzed using standard methods. Results The result of the study showed that mean dissolved oxygen (P
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