Marine Protected Areas in Artisanal Fisheries: A Spatial Bio-economic Model Based on Observations in Costa Rica and Tanzania

Submitted by Eugenia Leon on

In many lower-income countries, the establishment of marine protected areas (MPAs) involves significant opportunity costs for artisanal fishers, reflected in changes in how they allocate their labor in response to the MPA. The resource economics literature rarely addresses such labor allocation decisions of artisanal fishers and how, in turn, these contribute to the impact of MPAs on fish stocks, yield, and income.

Fisheries

Marine Protected Areas: Lessons from Costa Rica and Tanzania

Submitted by Eugenia Leon on

Both Tanzania’s and Costa Rica’s beaches provide important nesting sites for endangered sea turtles. Poaching of eggs by local people for food or for sale presents a major threat to these species, as do other predators. This harvesting of eggs in MPAs, and throughout Costa Rica, remains illegal, but enforcement on long beaches proves difficult. Both countries have active organizations that attempt to reduce this poaching, sometimes involving moving nests.

Fisheries

Poverty Impact of Salmon Growth Centers in Los Lagos’s Region in Chile

Submitted by NENRE Concepcion on

This study evaluates the impact on poverty produced by the establishment of salmon aquaculture  in rural localities of Los Lagos region in Chile in the period 1992 - 2002.

Fisheries

The Effect of Organizational Characteristics on the Technical Fishing Efficiency within a Collective Quota (CQ) System

Submitted by NENRE Concepcion on

This research examines empirically the initial impact of artisanal organizations’ characteristics on the technical efficiency of Chile’s common sardine and anchovy artisanal fishery fleet operating in a collective quota (CQ) system.

Fisheries

Assessment of the Potential Biomass Supply from Crop Residues in China

Submitted by Anonymous (not verified) on
EfD Authors:

Using a mathematical programming model, this study estimates the potential biomass supply from crop residues in China at various exogenously-given biomass prices and identified the areas that are likely to produce crop residues. The analysis indicated that China can potentially produce about 153.0-244.2 million dry metric tons of crop residues per year when biomass prices are larger than $90 per metric ton.

Fisheries

Collective rights in artisanal fisheries and the trade-offs in fisheries policies: An analysis of distributive policies

Submitted by NENRE Concepcion on

The potential effects of a redistributive fishing quota policy on the profits and employment of the artisanal fisher organizations is analyzed within a multi-objective programming model.

Fisheries

Trade and resources: Welfare effects of the Lake Victoria fisheries boom

Submitted by Salvatory Macha on

We examine the welfare implications of the Tanzanian fisheries boom resulting from Lake Victoria Nile perch exports during 1993–2008. In the literature, there are two opposing views on the effect of fish trade: some argue that fish trade can act as an engine of growth, while others contend that trade in fish negatively affects food security, local economies and incomes of the poor.

Fisheries

Using Taxes to Deter Illegal Fishing in ITQ Systems

Submitted by Anonymous (not verified) on

This paper studies the effects of different tax schemes used in fishery management in combination with an Individual Transferable Quota (ITQ) system. It focuses on the effects of taxes on equilibrium quota prices and violations under the assumption that enforcement to induce compliance is imperfect and costly. The use of taxes is motivated by the regulator’s need to recover costs for enforcement activities.

Fisheries

Who Should Set the Total Allowable Catch? Social Preferences and Legitimacy in Fisheries Management Institutions

Submitted by Anonymous (not verified) on
EfD Authors:

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.

Fisheries

Assessing Stakeholder Adaptive Capacity to Salmon Aquaculture in Norway

Submitted by NENRE Concepcion on

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.

Fisheries