We develop a decision making model based on constraints that are typically encountered in fisheries management when setting the total allowable quota. The model allows us to assess the differences in outcomes when the decision is made by different management institutions under uncertain conditions.
This article presents a decision-making model based on situations that are typically encountered in fisheries management when setting the total allowable quota. The model allows assessing the differences in outcomes when different management institutions make the decision under uncertain conditions. Social preferences are considered to measure the social expected costs raised by different institutions.
Membership of a well-reputed international environmental economics research and capacity building network such as the EfD initiative was among the criteria when the Chilean EfD Center, the Research…
This paper explores the socio-ecological effects of increased aquaculture/farmed fish production, around the island group of Frøya in Trøndelag, Norway, as a result of new licenses accorded to the industry. This is investigated from a stakeholder perspective by assessing the adaptive capacity of selected stakeholder groups through workshops combining Scenario Analysis, Systems Thinking and Bayesian Belief Network and by developing conceptual frameworks and structural diagrams that visualize the perceived effects of the industry on the given stakeholder system.
Namibia's fishing industry is managed using a system of fishing rights and individual fishing quotas. This property rights system was intended to encourage the local fishing industry to exploit the resource responsibly. Unfortunately, unintended perverse incentives have promoted induced overcapacity and inefficient use of vessels. In combination with inconsistent quota allocations, the result has been persistent pressure on the already depleted biological resource. This paper uses a bio-economic model to estimate actual and potential profits in Namibia's hake fishery.
The value of shark tourism and similar ‘non-consumptive’ uses of sharks has long been used to build a case for conservation-based management of this marine resource. And yet the figures used to…
South Africa’s marine fisheries’ contribution to the country’s GDP is relatively small, but the economic implications of how these marine resources are managed has far-reaching effects for small…
Marine resources have failed to escape the "tragedy of the commons" posed by Hardin (1968). The globalization of economic activity because of trade liberalization is usually pointed as one the factors that explain the decline of marine resources.
Small-scale fishing constitutes the main source of marine products and a central component of local livelihoods for poor families in coastal areas of Costa Rica. This country has been defining marine reserves, and fishermen are believed to be amongst the most prominent opponents of such policies, given the potential costs that entails the lost access of fishing areas of traditional use. However, it seems that this potential economic impact would depend on the livelihoods diversification, and the spatial definition of closures, among others.
We analyzed the reduction in exportation levels of the enterprises which have been working with the Chilean Atlantic Salmon, following the outbreak of ISA virus (ISAv) in 2007. We used a Duration Econometric Model for assessing the risk and survival of the enterprises. Also were determined the factors that explained the reduction of exportation levels, through the Proportional Risk Weibull Model. The results shows that the enterprises affected with ISAv have greater probability of decreasing their exportations.