Phytoplankton diversity and their relationship with water quality parameters in the middle basin of Ogun River, Abeokuta, Southwest Nigeria

A tétel rövid nézete
dc.contributor.authorAmoda, Oyefolake
dc.contributor.authorAbiodun, Odunayo
dc.contributor.authorAdewale, Caleb
dc.date.accessioned2026-01-14T10:46:15Z
dc.date.available2026-01-14T10:46:15Z
dc.date.issued2025-12-02
dc.description.abstractPhytoplankton are crucial bioindicators for assessing freshwater ecosystem health. This study investigates the diversity and distribution of phytoplankton and key water quality parameters in the Ogun River. Monthly samples were collected from three sites along the river between February and August 2024. Phytoplankton samples were preserved with 4% formalin and analyzed microscopically, while water quality parameters, including temperature, pH, dissolved oxygen, conductivity, transparency, total dissolved solids, nitrate, phosphate, alkalinity, and hardness, were measured using standard methods. Results showed temperature ranged from 27.3–31.9 °C, pH from 6.7–9.4, dissolved oxygen from 4.3–7.2 mgL -1 , conductivity from 10.8–20.9 µS/cm, transparency from 0.27–1 m, and other parameters within specified ranges. Sixteen phytoplankton species from 10 families were identified, with the Bacillariophyceae family being the most dominant, representing 7 species. Lyngbya spp. was the most abundant species, followed by Pediastrum simplex. Species richness was 12 species at Site A, 13 at Site B, and 14 at Site C. Dominance values were 0.13, 0.11, and 0.12, respectively. Simpson’s diversity index ranged from 0.87 to 0.89, and the Shannon-Weiner index was 2.24 at Site A, 2.38 at Site B, and 2.35 at Site C. One-way ANOVA tests showed no statistically significant differences in diversity indices among the three sampling sites (p > 0.05), indicating relatively consistent phytoplankton diversity across the study area. These findings highlight the importance of integrated biological and physicochemical monitoring for effective water management and ecosystem conservation in the Ogun River.en
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dc.identifier.citationActa Agraria Debreceniensis, No. 2 (2025) , 5-13
dc.identifier.doihttps://doi.org/10.34101/actaagrar/2/15465
dc.identifier.issn2416-1640
dc.identifier.issue2
dc.identifier.jatitleActa agrar. Debr.
dc.identifier.jtitleActa Agraria Debreceniensis
dc.identifier.urihttps://hdl.handle.net/2437/402022en
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/actaagrar/article/view/15465
dc.rights.accessOpen Access
dc.rights.ownerby the Author(s)
dc.subjectPhytoplanktonen
dc.subjectbio-indicatoren
dc.subjectspecies richnessen
dc.subjectwater quality parametersen
dc.subjectdiversity indexen
dc.titlePhytoplankton diversity and their relationship with water quality parameters in the middle basin of Ogun River, Abeokuta, Southwest Nigeriaen
dc.typefolyóiratcikkhu
dc.typearticleen
dc.type.detailedidegen nyelvű folyóiratközlemény hazai lapbanhu
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