The impact of economic and regulatory factors on the relative profitability of fishing boats: A case study of the seaweed harvesting fleet of Northwest Brittany (France)

This paper addresses the question of the relative importance of economic and regulatory (administrative) factors on the profitability of various components of a fishing fleet. The argument is that, while the official purpose of most regulatory measures is resource conservation, these measures may significantly influence the relative levels of incomes generated by various components of the fleet. When a large part of fisheries management is under the control of fishermen themselves, this illustrates how the endogenous generation of rules by groups of users may affect both economic efficiency and equity. The analysis relies on a field survey of a small-scale inshore fishing fleet of the Northwest part of Brittany (France),which provided data for simulations concerning the impact of various factors on the profitability of boats. According to the results of these simulations, two regulations, concerning the cost of access to some resources and the control of fishing effort, play a significant role in the difference of profitability observed according to boat size. At a time when the ageing of the fleet opens the question its renewal, this might influence durably the dynamics of the fishery.