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- W2260087064 abstract "Littoral macroinvertebrate assemblages at four stations in Ethiope River, Nigeria corresponding to different catchment land uses and recreational activities were sampled from October 2011 to May 2012 using kick sampling technique along with physico-chemical water parameters. The waters of Ethiope River were in general, transparent, acidic with low pH values ranging from 4.6 to 6.4, reasonably well oxygenated (4.4-6.8 mg/L), of low conductivity (-1) except in Station 2 where conductivity reached up to 47.2 µScm -1 Ephemeroptera, Plecoptera and Trichoptera dominated the headwater stations, whereas Coleoptera, Oligochaeta and Chironomidae dominated recreational sites. Significant relationships were recorded between physico-chemical parameters: conductivity, BOD, temperature, and nutrients and occurrence of specific taxa, mainly Neoperla, Caenis, Baetis, Enallagma, Gyrinus, Leptonema, Rhematobates and Chironomus . Distribution of organic matter, macrophyte cover, substratum texture, recreational activities and current velocity accounted for variations in species composition, taxonomic richness and total abundance at four stations sampled. Significant changes in macroinvertebrate assemblages were primarily due to changes in water quality. Littoral macroinvertebrate communities proved to be good indicators of water quality and should be used as bioindicators in long-term monitoring of this river. Key Words : Macrofauna, recreational activities, river health, Ethiope River, Nigeria" @default.
- W2260087064 created "2016-06-24" @default.
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- W2260087064 date "2014-04-01" @default.
- W2260087064 modified "2023-09-26" @default.
- W2260087064 title "Effects of recreational activities on the littoral macroinvertebrates of Ethiope River, Niger Delta, Nigeria" @default.
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