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Water hyacinth (Eichornia crassipes) invaded Kainji Lake in 1989 causing problem to
hydroelectric power generation, navigation, irrigation and flood control. Apart from the
above, indigenous local fishermen indicate other adverse effects to include:
− Fish avoid infested areas,
− Harbouring of snakes,
− Dislodgement of gillnets,
− Hindering setting of gears,
− Livestock poisoning,
− Suppression of Niger grass, which is a fodder for livestock.
Through the intervention of the GTZ, the weed has been effectively controlled through three
major methods:
Manual control: Community sensitization through extension and manual removal from
beaches
Biological control using the insects Neotechtina bruci, obtained from IITA, Cotonou and N.
eichornia from local sources in Nigeria.
Mechanical control through the construction of a (floating) and fixed barrier (boom) upstream
of the Lake at Rofia/ Zamare.
On target group level, removal of the water hyacinth reduces a major constraint to fishing in
shallow areas and reduces navigation hazards through weed mats and of access to beaches. At
the barrier, hiring of local labour to remove the weed behind the boom creates employment.
The project’s approach (community involvement, biological and mechanical control) is
assessed to be a model for other areas.
AN EFFECTIVE PROJECT ADMINISTRATION AND LOGISTICS (ENHANCED CAPACITY BUILDING)
Significant contributions have been made to the training of counterpart staff and to some
extent local community members (more than 80 persons trained).
Enhancement of equipment of counterpart institutions, especially regarding computers and
vehicles. The project successfully built, equipped and furnished an office block for the
KLFMCU.
POVERTY ALLEVIATION AND NATURAL RESOURCES MANAGEMENT
The project objective of institutionalizing a sustainable exploitation mechanism for fishery
resources of Kainji Lake has been achieved. Further, the effective enforcement of the fisheries
laws of Kebbi and Niger States has resulted in the ban and withdrawal of the bulk of beach
seines within the lake.
These measures have
− Contributed towards a sustainable exploitation of the lake fishery resources.
− Contributed to poverty alleviation, food security and income generation among
community households.
− Contributed to the maintenance of the bio- diversity of the lake’s ecosystem.
PUBLICATIONS
Since the inception of the project, KLFPP staff have produced 121 scientific and technical
papers, mainly in the areas of fisheries and socio-economics. About half of these papers are
unpublished internal reports, the other half are predominantly publications either as KLFPP
Technical Reports or as summary articles in NIFFR Annual Reports (Sazwedel 2001).
l’atelier international sur l’“amplification des ressources halieutiques a travers la gestion participative: Leçons et perspectives,du
12 au 14 Décembre 2002, Bobo-Dioulasso,,Burkina Faso