Life Below Water

Siting Marine Protected Areas with Area Targets: Protecting Rural Incomes, Fish Stocks, and Turtles in Costa Rica 20-08

Submitted by Eugenia Leon on 12 June 2020

With many countries seeking to increase the area conserved in marine protected areas (MPAs) to achieve the Convention on Biodiversity’s protected area targets by 2020, we employ a bioeconomic model to determine which configurations of MPAs that meet area targets perform the best for secondary goals, including fishing yield, rural income, fish stocks, and sea turtle conservation.

Fisheries

Optimal Allocation of Anchovy Stocks as Baitfish for Tuna and Food for Local Communities in Developing Coastal Countries 20-14

Submitted by Eugenia Leon on 5 June 2020
EfD Authors:

Bait tuna boats in developing coastal countries compete for small pelagic stocks such as anchovy that are primarily targeted by artisanal fishers. The tuna vessels are typically foreign owned, their catches are exported, and the vessels pay taxes to the resource-rich countries; by contrast, the artisanal fishers exploit the small pelagic stocks to support their livelihoods. In addition, the technologies employed in catching the baitfish (i.e., intermediate input) may destroy the benthic floor of the management area of artisanal stocks.

Fisheries

Measuring the Impact of Management Reforms on the Triple Bottom Line of an Industrial Deep-Sea Shrimp Fishery in the Colombian Pacific 20-13

Submitted by Eugenia Leon on 5 June 2020

This study compares the performance of the industrial deep-sea shrimp fishery in the Colombian Pacific prior to and following important management reforms aligned with the FAO Code of Conduct for Responsible Fisheries. The Fishery Performance Indicators (FPIs) methodology was applied to examine changes in the ecological, economic and social outcomes brought about by the reforms. The analysis revealed that regulatory reform improved environmental performance through increases in stock size and

Fisheries

Measuring Triple Bottomline Performance in a Fishery Attempting to Recover from Collapse: The Case of the Colombian Queen Conch Fishery 20-12

Submitted by Eugenia Leon on 5 June 2020

The rebuilding of collapsed fisheries is a major challenge for fisheries science and management, requiring multi-faceted evaluations to assess the current and potential performance of recovering fisheries. Single-dimensional analyses such as stock abundance assessments are only partially effective in determining the best course of action for fisheries in this condition.

Fisheries

Estimating economic value of site quality for uncertain ecosystem service provision in Swedish forests

Submitted by Samuel Wakuma on 18 May 2020

As in other ecosystems, provision of ecosystem services from forests is uncertain because of stochastic weather conditions. In general, society is risk-averse, which means that factors increasing or decreasing the uncertainty in ecosystem services add a source of cost or value to society, measurement of which is lacking in the literature. This article suggests a method for calculating the impact of site-specific ecological conditions in Swedish forests on the economic value of uncertain ecosystem services in terms of timber and carbon sequestration.

Forestry