FOI Seminar 25 March 2011

Frank Jensen (FOI):

 

Competition between aquaculture and fisheries: Impacts on aquaculture of introducing optimal fisheries management

(joint with Max Nielsen and Rasmus Nielsen)

 

Friday 25 March 2011, 13.00-14.00 (note time) Building A, seminar room 1

Abstract:

The global fisheries sector has been characterized by three main trends over the last 2-3 decades; fish stocks have been overexploited and supply from wild fisheries are stagnating, fisheries management has improved with the aims of sustainability and rent maximization, and supplies from aquaculture has grown continuously. In this paper, the impact of improved fisheries management on aquaculture growth is studied. The effect of moving from open-access to optimal management in fisheries on aquaculture is analyzed in a partial-equilibrium model combining a bio-economic supply analysis of fisheries with a traditional supply analysis of aquaculture, assuming perfect substitution between farmed and wild fish. It is found that improved fisheries management reduce growth potential of global aquaculture in markets where wild fisheries supply sufficiently large shares of total supply. The implication for aquaculture is that for certain fish species, the growth potential is reduced. Nevertheless, growth potential remains positively influenced by factors like increased global demand for fish and increased productivity.