Influence of sewage pollutions at ocean road beach on the marine environment
| dc.contributor.author | Frederk, Godfrey | |
| dc.date.accessioned | 2020-06-03T12:55:19Z | |
| dc.date.available | 2020-06-03T12:55:19Z | |
| dc.date.issued | 2005 | |
| dc.description | Available in print form, East Africana Collection, Dr. Wilbert Chagula Library, Class Mark ( THS EAF GC1085.F73) | en_US |
| dc.description.abstract | The objective of this study was to explore some physical, chemical and biotic parameters at polluted Ocean Beach and compare them with those at a relatively unpolluted Mbweni beach. A total of 50 sampling stations were established along 5 transects at each beach. Benthic macrofauna were obtained by sieving sand through 1 mm mesh and identified in the laboratory. In the laboratory nutrients were determined spectrophotometrically. Salinity, pH and turbidity were measured by refractometer, pH-meter and portable spectrophotometer, respectively. Student t-test showed that nitrate concentration in the sediments and biodiversity of macrofauna were higher at Mbweni beach (p ˂ 0.05) compared to Ocean Road beach. Turbidity and pH were higher at Ocean Road beach (p ˂ 0.05) compared to Mbweni. Ammonium, nitrate and phosphate concentrations in the water column were higher at Ocean Road beach (p ˂ 0.0001) than Mbweni. Phosphate and ammonium concentration was higher in the sediment pore water at Ocean Road beach (p ˂ 0.05) compare to Mbweni. The pore water content in the sediments at Ocean Road beach was higher than Mbweni beach (p ˂ 0.0001). This study concluded that pollution by sewage at Ocean Road beach has elevated some physical parameters like turbidity, pH and BOD and lowered salinity at Ocean Road beach. Marine pollution has adversely impacted macrofauna at Ocean Road beach by reducing their diversity and altered their composition. Some parameters like turbidity decreased seawards from pollution point Ocean Road beach, indicating direct impact of sewage pollution. | en_US |
| dc.identifier.citation | Frederk, G (2005) Influence of sewage pollutions at ocean road beach on the marine environment, Master dissertation, University of Dar es Salaam | en_US |
| dc.identifier.uri | http://41.86.178.5:8080/xmlui/handle/123456789/11964 | |
| dc.language.iso | en | en_US |
| dc.publisher | University of Dar es Salaam | en_US |
| dc.subject | Marine pollution | en_US |
| dc.subject | Sewage disposal | en_US |
| dc.subject | Ocean road beach | en_US |
| dc.title | Influence of sewage pollutions at ocean road beach on the marine environment | en_US |
| dc.type | Thesis | en_US |