Age and size at maturity are key life-history traits in a fish stock. At the individual level age and size at maturity affect fecundity, growth and survival. At the population level these factors interact to affect age and size distribution, the population dynamics and the productivity of the stock. A...
About 25% of the world's fisheries are depleted such that their current biomass is lower than the level that would maximize the sustained yield (MSY). Using methods not previously applied in the fisheries conservation context, we show in four disparate fisheries (including the long-lived and slow-growing orange roughy) that the...
The Lofoten fishery exploits the spawning migration of the Northeast- Arctic cod and is one of the fisheries in the world with the longest history. Since 1860, data on participation and catches in the Lofoten fishery are available. For about a hundred years, labor productivity in this fishery, measured as...
This paper studies the potential for cooperation in shared fisheries when the countries in the coalition act in a Stackelberg fashion with respect to the remaining singletons. An increase in the cooperation level is a social welfare improvement, leading to an increase in both the steady-state fish stock and total...
The majority of monitored fish stocks globally is fully or over exploited, that is, at or below their maximum sustainable yield stock levels. Despite this resource situation international trade in fish products have been increasing for a long time. An export tax on fish and fish products, as an alternative...