Formulation of pilot activities on intermittent harvesting Report Preparated for the Aquaculture for Local Community Development Programme
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Intermittent harvesting, whereby fish are cropped regularly from ponds is a harvesting strategy practised by small-scale fish farmers in rural areas of Zambia and Zimbabwe. At its second meeting in October, 1988, ALCOM's Advisory Committee endorsed a proposal to initiate pilot activities on intermittent harvesting in two or three areas in order to document the occurrence and the socio-economic and bio-technical advantages and disadvantages of this strategy; develop and demonstrate methods to i mprove the practice; and evaluate the long term impact on the viability of fish farming systems employing such strategies. A workplan of the pilot activities to be initiated is described in this report. To investigate the socio-economic aspects of intermittent harvesting, information is required on the socio-economic profile of households which adopt different harvesting strategies as well as the external factors which influence their decision (e.g. access to markets, access to extension ser vices). In order to investigate the bio-technical aspects of intermittent harvesting, applied research is required on the biotic and a-biotic factors which control breeding and the harvesting techniques used. Luapula Province, Zambia, and Murewa District, Zimbabwe, were selected as sites suitable for the initiation of these investigations. A pilot project was designed, comprising six main activities: Socio-economic surveys and in-depth studies on the occurrence and reasons for intermittent harvesting. Monitoring of on-farm yields, income and protein availability under different harvesting strategies. Development of a bio-technical simulation model. On-station applied research in order to improve production. Technical consultation on intermittent harvesting. Introduction, testing and monitoring impacts of improved production and harvesting strategies