A Proposal for Statistics Recording and Biological Sampling from the Sardine Fishery in Zanzibar, Tanzania.
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Ring net fishing for sardines is the most important commercial fishery in Zanzibar, and it is planned to be further developed. In this sense it is important to start recording statistics and to obtain biological data from this fishery. This information can be used for a first attempt of stock assessment of the principal species caught and also for obtaining the present and future economical state of the fishery if effort is increased. This report is a proposal for a data collection system from this fishery. The forms presented will, when filled in, provide enough information for a detailed study of the fishery. Since the stocks are also exploited by the Tanzanian mainland fishing fleet, Tanzania is included in this proposal. A further consequencence of such a detailed study is that the information provided gives an opportunity to model fleet structures and working schedules onboard boats. Through simulations of fishing activity including different boat types and different effort, a future optimal fishing system can be synthesised. Such a system rill both concern profitability per boat and the optimal effort or number of boats suited for this fleet structure.