Mechanical control of floating aquatic weed: Kainji Lake experience
The paper describes the uniqueness and invasiveness of water hyacinth (Eichhornia crassipes) on Lake Kainji (Nigeria). The mechanical blocking device design concept based on the Kainji Lake flooding regime is also highlighted. Water hyacinth coverage, that was over 23% at high water in level in 1994, was reduced to 0.75% in the same period in 2000. Although this feat cannot be wholly ascribed to mechanical control effort alone, the first year of the device's full operation more than 1.04 million kg of fresh weight of water hyacinth were trapped, collected and deposited in two separate dumping pits, each at about 1 km off the shoreline of either side of the Lake. On further analysis over a period of one year of uncleared inflow of water hyacinth indicated the effectiveness of the bloom. Recommendations are advanced for the use of such local but highly technical knowledge to control floating water hyacinth that is vastly taking over the intricate network of Nigerian water systems and within the West African sub-region
Main Authors: | , , , |
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Format: | conference_item biblioteca |
Language: | English |
Published: |
2003
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Subjects: | Ecology, Nigeria, Lake Kainji, aquatic plants, pest control, plant control, vegetation cover, weeds, Eichhornia crassipes, |
Online Access: | http://hdl.handle.net/1834/21348 |
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dig-aquadocs-1834-213482021-06-28T02:32:27Z Mechanical control of floating aquatic weed: Kainji Lake experience Daddy, F. Ladu, B.M.B. Salzwedel, H. Isa, A.U. Ecology Nigeria Lake Kainji aquatic plants pest control plant control vegetation cover weeds Eichhornia crassipes The paper describes the uniqueness and invasiveness of water hyacinth (Eichhornia crassipes) on Lake Kainji (Nigeria). The mechanical blocking device design concept based on the Kainji Lake flooding regime is also highlighted. Water hyacinth coverage, that was over 23% at high water in level in 1994, was reduced to 0.75% in the same period in 2000. Although this feat cannot be wholly ascribed to mechanical control effort alone, the first year of the device's full operation more than 1.04 million kg of fresh weight of water hyacinth were trapped, collected and deposited in two separate dumping pits, each at about 1 km off the shoreline of either side of the Lake. On further analysis over a period of one year of uncleared inflow of water hyacinth indicated the effectiveness of the bloom. Recommendations are advanced for the use of such local but highly technical knowledge to control floating water hyacinth that is vastly taking over the intricate network of Nigerian water systems and within the West African sub-region 2021-06-24T15:54:16Z 2021-06-24T15:54:16Z 2003 conference_item http://hdl.handle.net/1834/21348 en http://fison.org.ng/ application/pdf application/pdf 298-303 http://aquaticcommons.org/id/eprint/3636 424 2011-09-29 17:05:04 3636 Fisheries Society of Nigeria |
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Ecology Nigeria Lake Kainji aquatic plants pest control plant control vegetation cover weeds Eichhornia crassipes Ecology Nigeria Lake Kainji aquatic plants pest control plant control vegetation cover weeds Eichhornia crassipes |
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Ecology Nigeria Lake Kainji aquatic plants pest control plant control vegetation cover weeds Eichhornia crassipes Ecology Nigeria Lake Kainji aquatic plants pest control plant control vegetation cover weeds Eichhornia crassipes Daddy, F. Ladu, B.M.B. Salzwedel, H. Isa, A.U. Mechanical control of floating aquatic weed: Kainji Lake experience |
description |
The paper describes the uniqueness and invasiveness of water hyacinth (Eichhornia crassipes) on Lake Kainji (Nigeria). The mechanical blocking device design concept based on the Kainji Lake flooding regime is also highlighted. Water hyacinth coverage, that was over 23% at high water in level in 1994, was reduced to 0.75% in the same period in 2000. Although this feat cannot be wholly ascribed to mechanical control effort alone, the first year of the device's full operation more than 1.04 million kg of fresh weight of water hyacinth were trapped, collected and deposited in two separate dumping pits, each at about 1 km off the shoreline of either side of the Lake. On further analysis over a period of one year of uncleared inflow of water hyacinth indicated the effectiveness of the bloom. Recommendations are advanced for the use of such local but highly technical knowledge to control floating water hyacinth that is vastly taking over the intricate network of Nigerian water systems and within the West African sub-region |
format |
conference_item |
topic_facet |
Ecology Nigeria Lake Kainji aquatic plants pest control plant control vegetation cover weeds Eichhornia crassipes |
author |
Daddy, F. Ladu, B.M.B. Salzwedel, H. Isa, A.U. |
author_facet |
Daddy, F. Ladu, B.M.B. Salzwedel, H. Isa, A.U. |
author_sort |
Daddy, F. |
title |
Mechanical control of floating aquatic weed: Kainji Lake experience |
title_short |
Mechanical control of floating aquatic weed: Kainji Lake experience |
title_full |
Mechanical control of floating aquatic weed: Kainji Lake experience |
title_fullStr |
Mechanical control of floating aquatic weed: Kainji Lake experience |
title_full_unstemmed |
Mechanical control of floating aquatic weed: Kainji Lake experience |
title_sort |
mechanical control of floating aquatic weed: kainji lake experience |
publishDate |
2003 |
url |
http://hdl.handle.net/1834/21348 |
work_keys_str_mv |
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1756077485472088064 |