Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Determination of the effect on the environment of municipal effluents and inorganic sedimentation with regard to water quality and macroinvertebrate fauna in the River Delimi, Jos [Nigeria]

100%

Akpan A. W., Anadu D. I.

Acta Hydrobiologica

1994

tom 36

nr 3

387-398

Municipal and industrial effluents discharged into the River Delimi at midstream seriously affect the environment with enhanced levels of some chemical variables. Species richness, diversity, and biotic scores of macroinvertebrates were lowest at the affected zone for all taxa, while density and biomass were higher only for pollution-tolerant species of Mollusca, Oligochaeta, and Diptera. Unaffected and recovery zones were heterotrophic (P/R < 1), while the affected zone was autotrophic (P/R > 1) owing to dense algal mats. The results indicate a strong anthropogenic effect leading to habitat degradation.

Ograniczanie wyników

1 Acta Hydrobiologica

1 Akpan A. W.

1 Anadu D. I.

1 1994

Wyniki wyszukiwania

Determination of the effect on the environment of municipal effluents and inorganic sedimentation with regard to water quality and macroinvertebrate fauna in the River Delimi, Jos [Nigeria]