Motivated by a real-world problem, we study a novel setting for budgeted optimization where the goal is to optimize an unknown function f(x) given a budget. In our setting, it is not practical to request samples of f(x) at precise input values due to the formidable cost of experimental setup...
Basic research on semantic interoperability is just beginning to address support for spatial data and information. This is clearly important for data portals containing geographic information system (GIS) layers, as well as supplemental information, often with cartographic and decision support tools. Agreements on content/semantic interoperability of these resources can help...
A plant community classification was developed describing the comprehensive variation of oak vegetation currently occupying the Willamette Valley Ecoregion of western Oregon. Multivariate statistical analyses were used to classify field collected floristic and habitat data. Field sampling targeted minimally managed, homogenous vegetation stands with a significant oak component occupying at...
The Byrd Amendment permits US firms that petition successfully for antidumping duties to collect tariff revenues. Whether these payments strengthen the duty’s ability to raise price depends crucially on market structure. In a competitive market where domestic and imported goods are imperfect substitutes, the payments are akin to a production...
The Norwegian government has recently put forward a white paper concerning the management of the red king crab in the Barents Sea. The crab is an introduced species in the Barents Sea. The motive of the introduction was to improve the economy of the Russian coastal fisheries, as the crab...
Fishing for the life reef fish has been an important source of economy both at macro level and micro level. At Macro level, life reef fish for food (LRFF) plays a greater role in increasing export revenue since most of the fish are sold in overseas markets such Hong Kong...
Some recent studies have shown the outstanding price linkages at the global scale between the cannery-grade
tuna markets over the last decade. When it comes to price transmission along the European value chains, opposite results between the two major species (skipjack and yellowfin) are found: the market for final goods...
Kattudel or stake net fishery is an ancient (from early 1950s) lagoon fishing technique in many regions of Sri Lanka. It drags special attention due to the absence of open access nature. The fishery is regulated by kattudel association stemming from the Catholic Church. In fact, the fishery has its...
While there have been substantial benefits to fish trade and the fishing industry from the opening up of
markets, deregulation and greater flexibility in how and where companies can operate, this may have come at a significant cost when it comes to managing fish stocks sustainably. Globalization has facilitated the...
Climate change may cause significant changes in the distribution, abundance, and species mix of commercial fishery resources. In any given area stocks of some species may decline; stocks of other species may increase; and new species may appear in commercially significant volumes. However, it is difficult to predict what specific...
The shrimp fishery accounts for more than one-half of the total revenues generated by commercial fishing activities in the U.S. Gulf of Mexico. Due to its historical open access nature the harvesting sector has historically been overcapitalized (from an economic perspective) resulting in a suboptimal generation of rents. Various management...
A principle U.S. fisheries management concern is ensuring compliance with Endangered Species Act requirements to limit incidental takes of listed species to levels which do not result in potential jeopardy to existing population stocks. Part of the risk assessment process involves an analysis of historic takes (bycatch) of ESA-listed species...
Planning is an important kind of policies making. Meanwhile it is considered as activities which specify general development strategies of a nation, sector or even a specific field; it also is the basis for developing and implementing development projects (Huong, 2005). Therefore, it is essential to recognize the challenges, opportunities...
Society has agreed on the goal of sustainable fisheries but achieving the goal is often submerged by more
immediate national and international demands causing fisheries to slip down the political agenda or diverting attention to other fisheries issues, e.g., profitability under high fuel prices. Among the problems
challenging marine capture...
A post-tsunami economic analysis of cage culture along the Andaman Sea coast of Thailand was carried out in five provinces (Ranong, Phang-nga, Krabi, Trang and Satun) from September 2007 to February 2008. Two of the culture species normally raised in this area include sea bass (Lates calcarifer) and grouper (Epinephelus...
The Indian Ocean tsunami of 26 December 2004 severely affected six provinces (Ranong,Phang-nga, Phuket, Krabi, Trang and Satun) on the Andaman Sea coast of Thailand. About 27,000 fish cage culture operators in the Andaman coastline were affected by the tsunami impact, covering a total cage area of some 1,123,176 square...
The overall objective of SPICOSA is to develop a self-evolving, holistic research approach for integrated assessment of Coastal Systems so that the best available scientific knowledge can be mobilized to support deliberative and decision-making processes aimed at improving the sustainability of Coastal Systems by implementing Integrated Coastal Zone Management policies....
Conflict between the recreational and commercial sectors in New Zealand is largely limited to the fishery within the Territorial Sea. Although most of New Zealand’s fisheries’ value comes from mid to deep water stocks outside the Territorial Sea, there are a number of commercially valuable inshore fisheries.
Traditionally, conflict between...
For the past decades, around 20% of the natural coral reefs were lost and > 20% more is currently deteriorating. Due to the recognition of positive impact to fishery resources enhancement by artificial
reefs (ARs) deployment, Taiwanese government has started deploying ARs as a measure to improve the environment of...
Import demand for three types of frozen Thai seafood i.e. shrimp, cuttlefish and squid, and crab were estimated using Almost Ideal Demand System via Seemingly Unrelated Regression method. For Thai frozen shrimp important factors affecting the demand were import prices from Thailand as well as Vietnam and Indonesia. Main competitor...
During 1986-2006, fisheries in Tonkin Gulf had made rapid development. Total engine power increased 11.6 times while total catch only increased 2.9 times. Big increase in number of fishing boats has resulted to the overexploitation in near shore waters since 1995 and this situation has been spread out all over...
Fishery villages (Van Chai) has been formed for about 300 years since pioneered fishers settled in Phan Thiet for their livelihoods. This was a original social professional organization found before official administrative system established.
Binh Thuan has more than 30 Van Chai in coastal areas, in which about 20 importantly...
Fishery barometer surveys economic prospects and trends of fishery enterprises in Finland. The enterprises are divided into fishing, aquaculture, processing and the wholesale or retail trade. Since year 2000 the enterprises have been asked to evaluate their economic parameters, such as financial standing, turnover and investments. The present situation is...
Small-scale fisheries in developing countries have often been perceived as a low-productivity, backward informal sector. As a result they are rarely considered as a possible entry point in poverty reduction and
rural development planning. Data collected in Democratic Republic of Congo show that this perception may not reflect the empirical...
In the past several years, the fishing sector of the South Central Vietnam have been developing sharply, generating over 226 thousands employments. The sector has contributed a share of approximately 70% to the production value of the fisheries nationwide. The primary aim of this research paper is to assess the...
A key issue in fisheries restoration is the speed at which recovery can occur, while still meeting the
economic and social constraints which managers must deal with. This paper uses the viable control approach to examine fisheries restoration and study the tradeoffs involved with the selection of recovery strategies. We...
It is helpful to keep the stability of aquatic product supply chain and promote higher development of fishery economy to research power structure of aquatic product supply chain. This paper analyzes the power structure of aquatic product supply chain via the behavior theory in marketing discipline, cased study by Beijing...
This paper explores some theoretical and practical issues in developing policy for the management of shared fisheries for maximum value. Maximisation of value from the use of resources is a key component of sustainability, and transferable rights in commercial fisheries management have contributed significantly toward this goal. Maximising value becomes...
In many fisheries, the harvesting pattern shows considerable intra-year variation. These fluctuations give
challenges for downstream firms in value chains where predictability and continuity in the flow of production are important. Seasonal harvesting may well be rational from an economic perspective, as migration patterns can give huge variations in catch...
Simping clam are found spreadly in the nourthern coast of Java sea. Its taste is sweet and delicious. People in the coast served in boiled or fried with mixed vegetable for their dish. In fact, simping clam is considered as the pretigeous menu in international hotel and restaurant. At the...
Russia is experiencing deep structural changes in many areas. For the seafood industry important developments are large increases in household incomes, development of modern super- and hypermarket distribution channels, and product innovations. In the seafood category consumers are adopting new species and new product forms at a rapid rate. Herring...
This paper provides an overview of ongoing work undertaken in Senegal to understand the implications of fisheries certification on the octopus value-chain. It analyses the opportunities to increase social and
economic benefits for poorer groups and to establish a more gender sensitive approach to eco labelling through the implementation of...
Under open access regime, the coastal fisheries resources are overexploited in Vietnam. Recently, the community based fisheries co-management is becoming priority policy of Viet Nam, however, the government is confusing about how to approach it. The piloting approach by learning from previous and existing pilot community based fisheries management models...
The fishery resources in the Gulf of Thailand have been subjected to excessive levels of fishing effort since perhaps as long as two to three decades. This has caused a change in catch composition with a higher share of short-lived species. The influence of this change on the value of...
In the past, Java island was known as “Java-dwipa”(a place where over-whelmed with food stock). However, due to over population, then food security became fragile including in fisheries sector. The such situation is worsen by economic and political turbulency in Indonesia.This study aimed to explore the level of fishers’s powerment...
Capture-based aquaculture (CBA) is an industry that utilizes wild-captured specimens as stocking animals for ongrowing or storage. This yields an intriguing direct link between capture fisheries and aquaculture of these resources. Examples of CBA are collection of early life stages of many crustaceans and adolescent tunas for grow-out in aquaculture...
Fisheries models are generally built to assess the dynamics of a resource with a given fishing mortality
which level can be decided by some “decision maker” and/or which can be an observed process, e.g. times series proportional to some observed values of fishing effort. In these cases, the resource dynamics...