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Costs and profitability of boats engaged in marine and estuarine artisanal fisheries off Vigia county, Pará State, 2004 2005. The general objective of this research was the study of the microeconomic conditions under which artisanal boats engaged in marine and estuarine fisheries operate off Vigia county, Pará State, Northern Brazil. The specific objectives addressed the measurement of catch costs and economic feasibility indexes. Eighteen vessels of different characteristics were analyzed, including mediumand small-sized vessels, and motorized and non motorized canoes. There were boats that operated with gillnets and other that used longlines fishing gear. During the period from September, 2004 to August, 2005, for each boat’s fishing trip, data on expenses with inputs, services and labor, and revenues from product sales were collected. Total and average revenues, costs and profits were determined and some economic feasibility measures were calculated. In fisheries using nets, the most important product was the acoupa weakfish. In those with longline, the most important fishes were gillbacker sea catfish and kumakuma. Medium-sized vessels with nets, operating in marine areas, showed the greater net revenues and economic profits, with a benefit/cost ratio of 1.29, a profit margin of 22.60 % and a break-even point of 19.04 %. It provided the best remuneration to fishers. The small-sized vessels with longline showed the best benefit/cost ratio (1.43) and profit margin (30.02 %). This boat had some special characteristics: it was very close to a medium-sized one (in size and engine power) and, differently from other small-sized boats, operated in marine areas and used longline as fishing gear. On the other side, the mediumsized vessel with longline held a unique situation in this study, by displaying a benefit/cost ratio equal to unit, thus implying zero economic profit. It operated a kind of fishery with the use of a number of auxiliary boats (usually three) and, therefore, incurred in higher fixed and variable costs that apparently were not compensated by a greater production. The small non motorized canoes seemed to represent a typical case of subsistence fishery.

CUSTOS E RENTABILIDADE DE EMBARCAÇÕES ENVOLVIDAS EMPESCARIAS ARTESANAIS MARINHAS E ESTUARINAS, MUNICÍPIO DEVIGIA, ESTADO DO PARÁ, 2004-2005