How sawmill wastes impact surface water, sediment, macrobenthic invertebrates and fish: A case study of the Lagos lagoon, Okobaba area, South-Western Nigeria

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dc.contributor.authorFaremi, O.E.
dc.contributor.authorSogbanmu, Temitope O.
dc.contributor.authorAdeyemo, O.K.
dc.date.accessioned2022-01-10T14:47:10Z
dc.date.available2022-01-10T14:47:10Z
dc.date.issued2021-03-29
dc.descriptionScholarly articlesen_US
dc.description.abstractThe Okobaba area of the Lagos Lagoon, Nigeria, is characterised by sawmilling activities which are potential threats to resident aquatic organisms. This study was aimed at evaluating the effect of sawmilling activities on the environmental quality of the Lagos lagoon at Okobaba area, Lagos, Nigeria. Surface water, sediment, macrobenthic invertebrates, and fish species were sampled monthly from six stations for 3 months (July–September 2018). Relevant stakeholders were administered a cross-sectional questionnaire to determine their knowledge of the environmental effects of their activities. Environmental samples were analysed following standard methods. Descriptive and inferential statistics were performed using SPSS 20.0 and PAST 1.97. Results showed that surface water dissolved oxygen and chemical oxygen demand were significantly lower, while sediment total organic matter and nitrates were significantly higher at the test site compared to the reference site. A total of 389 macrobenthic invertebrates comprising eight species and two macrobenthic invertebrates comprising one species as well as 121 fishes comprising nine species and 70 fishes comprising nine (9) species were recorded at the reference and test sites respectively. About 46.3% of respondents alluded to improper waste disposal as the major cause of pollution at the test site among others, 66.7% responded that wastes were disposed of by burning among other disposal methods, and 66.6% agreed that the sawmilling activities contributed to reduction of aquatic animal population. We recommend urgent regulatory intervention to address the indiscriminate discharge of wastes and facilitate adequate environmental risk advocacy to sustain life below water (United Nations Sustainable Development Goal 14).en_US
dc.description.sponsorshipN/Aen_US
dc.identifier.citationFaremi, O.E., Sogbanmu, T.O. and Adeyemo, O.K. (2021). How sawmill wastes impact surface water, sediment, macrobenthic invertebrates and fish: A case study of the Lagos lagoon, Okobaba area, South-Western Nigeria. Environmental Monitoring and Assessment, 193(4): 235en_US
dc.identifier.issn1573-2959
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/10075
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.relation.ispartofseriesEnvironmental Monitoring and Assessment;193(4)
dc.subjectAnimal diversityen_US
dc.subjectWood wasteen_US
dc.subjectCoastal ecosystemen_US
dc.subjectWater qualityen_US
dc.subjectPollutionen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCESen_US
dc.titleHow sawmill wastes impact surface water, sediment, macrobenthic invertebrates and fish: A case study of the Lagos lagoon, Okobaba area, South-Western Nigeriaen_US
dc.typeArticleen_US
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