The Nile perch fishery of Lake Victoria is regulated with a slot size and with restrictions on legal gear sizes. This study provides an assessment of the effectiveness of the the slot size regulation by simulating the Nile perch fishery with a size structured population model where the size...

Purpose - With increasing marine resource development, the rapid development of the marine economy, and the continuous decline of the marine natural resource system, the contradiction between marine resources and economic development is becoming increasingly acute. The study of marine resources...

Transforming Philippine agriculture and fisheries (AF) into a dynamic, high-growth sector is essential to poverty reduction, food security, and inclusive economic prosperity. However, unsustainable AF practices have impacts on the environment and climate, and at the same time, ecosystem...

Lake Victoria, globally the second-largest freshwater Lake by surface area, houses an artisanal Nile Perch Fishery that directly involves around 200K people. While the 10 whole Lake surface is potentially available to fishing activities, the fishing vessels' operational and technical...

We study optimal harvesting of a renewable resource with stochastic dynamics. To focus on the effect of risk aversion, we consider a resource user who is indifferent with respect to intertemporal variability. We find that a constant escapement strategy is optimal, i.e. the stock after harvesting...

Significant economic growth in marine fishing is thought to have the prospective outpace the development rate of global economy, increasing the production of greenhouse gas emissions as by-products increase. China, the largest emitter, intends to decouple marine capture fisheries from greenhouse...

Fishery managers face an ongoing challenge in managing commercial fisheries in a way which enables the short-term delivery of economic benefits to commercial fishers while also ensuring those benefits do not compromise the ability of fish stocks to deliver benefits into the future. This...

Despite recent improvements in the ecological status of wild-capture fisheries, a significant share (33%) of global marine stocks remains overexploited. While top-down management has been shown to work in many settings, there is growing interest in demand-side interventions, which work through...

There are no longer plenty of fish in the sea. One-third of global fish stocks are overfished beyond biologically sustainable levels, and fishing subsidies are the primary culprit. Such subsidies incentivize overfishing, foster illegal, unreported, and unregulated (IUU) fishing and dangerously...

Purpose - This study investigates whether higher catch rates near a marine protected area (MPA), and/or in other fishing areas within a choice set, attract more fishers. A survey conducted in the fishing grounds near an MPA located in south east of Mauritius in the Indian Ocean shows...

Under a wide variation of overfished stocks by countries and regions, this research examines whether regions and countries with low overfished ratios are increasing their fishing output to catch-up to regions and countries with higher overfished ratios. For the total group of 131 countries, the...

"La gouvernance de la pêche revêt une importance accrue dans un contexte de changement climatique, de raréfaction du poisson et de préexploitation des ressources pétrolières et gaziéres offshore. Au Sénégal, la pêche constitue la principale source de revenu d'au moins 600 000 acteurs...

"Fisheries are complex systems and managing them sustainably requires a grasp of many interrelated subjects. The management of fisheries incorporates both natural and human elements, and their interactions and vulnerabilities can be varied. To present an overview of these systems requires a...

There is huge demand for the Indian fish products in International Markets. Japan, USA, Europe, Australia etc are major importers of Indian Fish. Among coastal states of India, Andhra Pradesh is occupying a dominating position with has nine coastal districts covering 974 km of coastline from...

The value chain management assists the stakeholders to perform value added operations, add value to the product and have better returns from the market. This paper attempts at value chain management practices adopted by the players of the marine fisheries chain in Andhra Pradesh and how much...

Climate change, with the progressive decrease in the thickness and extension of the ice sheet, is accelerating global and regional environmental risks in the Arctic Ocean. Among the many problems that will have to be tackled, this study analyses the possible introduction of commercial fishing...

The paper examines howan easy‐to‐apply optimal feedback rule can be used to solve for optimal levels of exploitation of a renewable resource. Using data from Canada's northern cod fishery, the optimal feedback rule is used to derive optimal levels of exploitation for the years 1962–91...

We explore the effects of free trade in a renewable natural resource between two countries in the presence of incomplete property rights. While resource management by one country may benefit one or both trading partners, we demonstrate that resource management by only one of the partners may...

A model with nonlinear discarding costs is developed for a fishery with an individual transferable quota (ITQ) program. The model shows that limited hold capacity and ITQs provide incentives to discard fish. The model is applied to the Icelandic ITQ‐regulated cod fishery to test for...

A contentious issue in recent fisheries management debates has been how to rebuild overfished marine fish stocks. We investigate the economic and ecological nature of rebuilding plans in a metapopulation system. We find “most rapid approach paths” for system‐wide recovery that differ from...

Biological changes in Pacific whiting (Merluccius productus) and corresponding production yields were used to model a vertically integrated fishery from harvest through processing. The seasonal bioeconomic programming model incorporated stock dynamics with the interactive economic effects of...