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Please use this identifier to cite or link to this item:
http://hdl.handle.net/1834/1260
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| Title: | Effects of water hyacinth on water quality of Winam Gulf, Lake Victoria |
| Authors: | Osumo, W. |
| ASFA Terms: | Water content
Water quality control |
| Issue Date: | 2001 |
| Abstract: | Lake Victoria is the second largest freshwater body in the world by surface area. It is
important for the livelihood of people living in the area. The lake is currently facing
many problems, one of which is macrophyte encroachment mainly the water hyacinth,
Eicchornia crassipes. Winam Gulf is a large inlet from Lake Victoria that extends
into Kenya. In order to study the effects of water hyacinth on water quality in the gulf,
measurements of water properties were made in the north-eastern corner of the gulf,
when the area was covered with hyacinth in March 2000. The hyacinth was then cut
and dumped on the bottom during the period June to beginning of August when all
water hyacinth had been removed with measurements being made again in July.
Water properties were again measured in November to see the changes made by the
cutting of the hyacinth. The oxygen levels in the gulf were found to increase
significantly (2-4 mg/l) after the shredding of the hyacinth. The largest changes
occurred in the bottom layers. This happened quite soon after the shredding was
completed. |
| URI: | http://hdl.handle.net/1834/1260 |
| Appears in Collections: | Technical Reports
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