As part of the Namibian government initiative on sustainable resources development, the Ministry of Fisheries and Marine Resources strongly urges right holders to continuously engage in value addition and market diversification of their products in an effort to realise maximum returns on their products. The importance of being in line...
Globalisation in the retail sector is transforming food value chains by driving consolidation in the industry and extending supply chains across the globe. Globalisation enables retailers to benefit from economies of scale and cheaper production in foreign locations. However, food markets themselves are increasingly responding to local consumer preferences. In...
The natural estrogen 17β-estradiol (E2) is responsible for the endocrine disruption and also has potential effect on the reproduction of vertebrate. However, its effect on invertebrate reproduction has scarcely been studied. The present study was conducted to determine the effect of E2 on survival, egg production and egg hatch of...
In this paper, a bio-economic simulation model for the sea scallop fishery is established and its application in analyzing the area rotation management policy is demonstrated. Section 2 describes model specification and estimation and presents the empirical model. Section 3 evaluates two policy options using the model and the last...
This paper presents a new bio-economic simulation model for the Italian fisheries developed as a part of a project financed by The General Directorate for Fisheries and Aquaculture (under the Italian Ministry of Forestry and Agriculture Policies). The main objective of the model is to measure the effects of different...
The objective of the paper is to analyse and to simulate fishers dis-investment behaviour especially in the context of the French buyback policy. A case study, the limited entry scallop fishery of the Saint-Brieuc bay is used to consider the problem of excess capacity and to review the impact of...
This study is aimed at evaluating the effectiveness of buyback program implemented last during a 10-year period using a bioeconomic model. Aggregate fisheries stocks are assessed by the surplus-production model and standardized aggregate harvest function is used in the bioeconomic model. The simulation result indicate that the fish stocks are...
The West Coast Rock Lobster fishery is Australia's most valuable commercial fishery. Around 550 vessels
harvest 10,500 tonnes of lobster per annum. The industry has an enviable track record of biological
management which has been based on a variety of input controls. In recent years this has necessitated three
significant...
A scientific knowledge gap exists with regard to how benthic habitat is affected by destructive fishing methods, such as bottom trawling, and how this impacts upon the productivity of commercial fish stocks. This
article addresses analytically the effects of destructive fishing practices of a single gear fishery on a non-renewable...
A bioeconomic model allowing different degrees of harvesting closures for two sub-stocks consisting of mature and immature fish is presented. Hence the model opens for partial closures of fisheries on both sub-stocks. Migration between the two sub-stocks is defined as recruitment of the young to the mature sub-stock, and egg...
The Northern Prawn Fishery is one of the most valuable fisheries in Australia with a yearly estimated value of production of about $64mil. Nine prawn species are commercially harvested from the Northern Prawn Fishery with 80% of annual average catch represented by the banana prawn (Fenneropenaeus merguiensis) and the tiger...
This paper investigates the application of cellular automata (CA) models in bioeconomic studies involving varying biological growth and area distribution. A simple 2D continuous cellular automata (CCA) model is presented and incorporated in a fish harvest model based on standard assumptions of economic rational behaviour by individual decision makers. The...
Scallop fisheries are often characterized by variable abundance and periodic mass mortality occurrences. Area rotation is a respected management tool for sedentary species. A bioeconomic simulation model that incorporates the spatial and temporal distribution of scallop beds and fishing effort is presented. The model is user-friendly and was designed for...
I will present a brief history of fish processing along the Pacific Coast of California and Oregon, and recollect some childhood memories of “laying about” in fish houses and fishing boats in my “home port” of Fort Bragg. As many of you know, the past 25 years of my career...
The brief historical occurrence of aquaculture introduces the science that evolved from the early studies on cod propagation in 1864, and the export of these concepts about stock enhancement through protection of early life history stages through what has always been considered the ‘critical periods’ during which the majority of...
The objective of the paper is to briefly present a comparative analysis of trends in the characteristics of
selected European fleets, observed over the last fifteen years, as an introduction to three empirical studies
of the behavioural determinants of these trends. The analysis presented aims at (i) describing changes
observed...
This paper addresses to a comparative approach of long term changes in the characteristics of marine fisheries at a regional scale, in three ecosystems: up-welling, tropical and temperate. The South Moroccan
continental shelf, under the influence of the Canary current, where up-wellings take place, is the most productive part of...
On 26th December 2004, colossal waves known as tsunami engulfed the coastal nations around the Indian
Ocean. The disaster brought physical, psychological and emotional suffering beyond measure to many
communities. It resulted in immense devastation of many coastal vegetations and marine ecosystems. The
fisheries in the coastal villages in Sri...
Generalised linear estimation and multi-layer perception neural network modelling techniques were applied to the Scottish trawler fleet data in order to estimate which inputs have the greatest impact on boat profits and output. Both produced comparable estimates that revealed inelastic and non-linear response to vessel power and length, negative response...
The purpose of this paper is to provide a comparative index characterization of shrimp farms in Bangladesh, India and Indonesia. There has been considerable work carried out on shrimp farming in South East Asia with emphasis on biology, environmental factors, management and trade issues but much less work on the...
We focus on problems of access to marine sites for aquaculture in different countries, particularly in Maine, U.S.A. and Canada. The main question examined is how public natural goods (marine space) are allocated for aquaculture activities. Using ideas from law and economics, as well as institutional economics, we looked at...
In this paper a real options approach is taken to natural resource contract valuation. A comparison is made between hedging with futures on developed (harvested) versus undeveloped assets. The risk-free Q martingale probability measure is obtained for the developed asset, and modified to a cost-adjusted Q martingale in the undeveloped...
This paper discusses sustainable development of Yemeni fisheries towards achievement of Millennium Development Goals (MDG) and stakeholder aspiration. Yemen is considered a Least Developed Country ranking 148 among 174 countries in terms of the Human Development Index. In terms of food security, Yemen is classified as a Low-Income and Food...
The harvest technology of several multispecies fisheries has been explained in the recent literature using dual-based models. These studies are useful for explaining rent dissipation, estimating input and output elasticities, as well as describing other aspects of fisherman behavior. Most of these analyses have assumed that inputs are fixed at...
The status of fisheries resources on coastal and offshore areas is getting worse in Taiwan. Thus, to establish a fishery resources management system has become the main task among stakeholders. In this study, we would like to examine the feasibility of imposing the community-based co-management system and setting closed fishing...
This paper proposes a formal analysis of the discarding issue including the sorting labour costs. Empirical evidences from an application to the Nephrops fishery in the Bay of Biscay show that sorting is an important time consuming activity on board and a factor of discarding. However existing literature does not...
For three years, a multidisciplinary group of researchers in social sciences, has analysed the Ethical, Legal and Social Aspects of fisheries management in Europe. In the framework of this ELSA Pêche programme funded under the ELSA line of the FAIR research programme of the European Commission (DG XII, Research), a...
Detailed economic analyses of fisher performance are critical inputs in improving the management of fisheries. The paper provides guidelines about the economic methodologies and the data required to monitor and assess the performance of individual transferable quota fisheries. In particular, it describes the methods of evaluation that could be applied...
Millions of people across the world, and particularly in Asia, depend on small-scale fisheries for a livelihood. Small-scale fisheries contribute in significant ways to employment, income and food security, and in many parts of the world small-scale fisheries constitute the backbone of remote, rural economies. However, several problems, within and...
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...
The aim of this paper is to assist teaching undergraduate students how to analyse the issue of fish stock investment. The mathematical prerequisites are a basic knowledge of calculus. Both discrete and continuos time frameworks are used. To fish down or to build up a fish stock takes time, and...
The fishery cooperative association of Akita Prefecture closed the sailfin sandfish Arctoscopus japonicus fisheries from 1992 to 1994 to rehabilitate the stock. Following the temporary closure, the total allowable catch (TAC) has gradually increased. The aim of this study is to evaluate the effects of the fishery moratorium and other...
The 1992 Convention on Biological Diversity (CBD) establishes a new legal framework for the management of biological resource use, for example in fisheries. The signatory states to the CBD have agreed upon several major principles which become legally binding following ratification of the Convention by the national legislature. In terms...
Coastal nations can impose conditions of use on foreign fishing firms that operate in their Exclusive Economic Zone. We develop a game-theoretical model in which a fishery owner maximizes the revenue that it collects from firms that operate in its EEZ by charging them a fishing fee. We find that...
Around 100 commercial fish species are utilized by the trawl sector of the Australian South East Fishery, of which sixteen major species were brought into an ITQ management system in 1992. A revenue function approach is used to analyze catch, price and effort data for the period 1990-96, and to...
The high ecological, social and economic value placed on Western Australia’s aquatic environment creates a significant obligation on the WA Department of Fisheries to develop and implement appropriate and sustainable resource management strategies for the State's fisheries and fish habitats. Historically, fisheries management in Western Australia has been based on...
Five species of marine turtles are found within the territorial waters of Vietnam, and all populations are declining. As part of a broader strategy and Action Plan, the Government of Vietnam and WWF Vietnam have launched a two-year project to: 1) document relative gear impacts, and geographic hotspots , for...
An industry group has proposed a novel mechanism for management of the multispecies groundfish fishery off the northeastern United States. Under this mechanism, individual harvesters would be allocated a budget of points, to be expended landing fish. A regulatory body will set different prices, denominated in points, for landing each...
Sustainable aquaculture can be achieved when risk and uncertainly are incorporated in the analysis of the activity. This paper presents a precautionary approach to the feasibility analysis of a project for a commercial hatchery, applying decision theory. Two production scenarios were assessed, continuous and periodic, the later a combination of...
Recent work in the domain of fisheries ecology has shown that major changes are occurring in fish
communities exploited by commercial fisheries. Selective fishing pressure on more highly valued
components of fish communities, and its indirect effects via trophic interactions, are amongst the key
factors proposed to explain these changes....
Algal beds are a key component of coastal ecosystems. In terms of inshore fisheries, algal beds are important as: spawning grounds for fishes; habitats for fry; and sources of small prey animals for fishes. To maintain robust fish catches, it is considered worthwhile to maintain the functions of algal beds,...
Nearly 75% of the stocks in the waters of the European Union are overused. Therefore, recovery programs
are both necessary and urgent. However, the decisions made by the fisheries ministers rather seem
to prolong the overuse situation instead of putting an end to it.
From an overall perspective, it would...
The Irish Sea is a moderately discrete area with mixed fisheries targeting a fairly small number of relatively well researched but depleted fish stocks, including nephrops, cod, whiting, haddock, plaice and sole. Vessels from Belgium, England, France, Northern Ireland, and the Republic of Ireland participate. The degree of dependence of...
In this paper we define the regulatory structure of the New Zealand Quota Management System (QMS) and document key changes in its operation over time. We document the relevant legislation that affected the quota market from the Fisheries Act 1983 forward. We describe how the QMS operates in New Zealand...
It is impossible to place a date on the beginning of fishery research. It no doubt existed in a primitive way among the earliest civilizations. For practical reasons, the scope of this paper is limited to the four countries bordering the North Pacific--Japan, Canada, Russia and the United States--and to...
A linear programming (LP) profit-maximization model and a Target MOTAD risk programming model were developed to identify optimal management strategies and associated risk levels for the aquaculture of penaeid shrimp in Honduras. Data for this study were provided by three cooperating shrimp farms and included complete production records of 1,004...
Wiegardt Brothers is the oldest family business to continuously harvest oysters in the US, in operation since the 1970s. We are oyster growers, or aquaculturists.
The west coast oyster industry was founded on the native oyster, Ostrey Lurida, also regionally named the Olympia or Yaquina oyster. The name native stuck...
Unfortunately, most of the stocks are damaged by natural disasters or human activities and rebuilding the
stock are urgent requirements. Until now, in the stock management, some policies are commonly believed
to valid but have not been confirmed. A simulation model of the population dynamics incorporating
uncertainty has been already...
A balanced development between economic activities and environmental concern are profound in public and emphasized by the government policy. It is especially so with the change in working policy, thus the increase in leisure time for Eco-tourism. All along, fishing industry and marine based tourism have been major industries in...
It is widely accepted that in sea bottom areas where there is a scarcity of rocky formations and declining marine fish due to fisheries pressure, the deployment of artificial reefs (ARs) is a possible way to mitigate the problem. If ARs have an ecosystem-based fisheries management goal that means their...
Earlier this year a White Paper from the Norwegian Minister of the Environment presented a new, holistic, area-based management plan for the Norwegian part of the Barents Sea, including the Fishery protection zone around Svalbard. The plan will provide guidelines for managing human activities in relation to their use and...
Eco-labeling has been touted as a way for consumer preferences for environmentally benign products to be transmitted in markets. The label, as the argument goes, provides information to consumers who may then pay a price premium for the labeled products. Producers view demand for the eco-labeled products as quality differentiated...
In this paper we analyse different econometric procedures of technical efficiency to estimate fishing capacity. These procedures are then applied to the purse seine fishery located in the Gulf of Cádiz. The target species of this fishery has changed quite a lot over the past few years. It used to...
Since the collapse of the Newfoundland groundfishery in 1992, the snow crab fishery has become Newfoundland’s largest fishery, accounting for approximately half the value of total landings. This study uses trip log data to estimate the production frontier and the technical efficiency of this fishery using a Stochastic Frontier Analysis...
After joining the WTO, easier access to Taiwanese market due to tariff reductions and deregulation of import restriction is expected to have substantial impacts on the fishery sector in Taiwan. Comparing to the tariff rates in 2001, the average tariff rates of fishery products will decrease 35.5%, in 2004. Especially,...
A study was conducted to understand current practices of commercially important marine fish marketing systems in the Patuakhali area of southern Bangladesh. A total of ten commercially important marine fish were identified such as: 1) hilsa, 2) pomfret, 3) marine catfish, 4) tuna, 5) coral fish, 6) marine eel, 7)...
Vietnam’s marine fisheries are in need of knowledge-based management. This necessitates the establishment of
reliable indicators, which in turn entails a good data collecting and processing system. To bridge the gap between
specific requirements for fisheries policy development and the limited resources available, we have conducted a
study on costs...
This study is part of the research program on theme Post Harvest Management Strategy of Supply Chain For Thai Shrimp Products currently supported by the Department of Fisheries (DOF) and Post Harvest Technology Institution (PHT), Chiangmai University (CMU). That focuses on the cost efficiencies of 51 shrimp processing plants under...
An ITQ scheme has been shown to create a quota induced incentive for discarding of fish in excess of what is socially optimal. This finding is corroborated by empirical evidence in several ITQ managed fisheries. The incentive for discarding, over and above those expected in an unmanaged or input controlled...
The Social Sciences Branch (SSB) of NOAA’s Northeast Fisheries Science Center (NEFSC) uses economic data to estimate the economic impacts of fisheries regulatory actions. Since 1995, the Northeast Fisheries Observer Program has collected trip cost information from commercial fishing vessels on which observers have been deployed. However, the allocation of...
Molluscan shellfish culture is an important component of the commercial aquaculture industry in Florida, USA. The primary species cultured is the hard clam, Mercenaria mercenaria. Currently, annual grower revenues total approximately $15 million, which generate $40 million in economic impact to the state. However, hard clam production in other USA...
The South Australian rock lobster fishery is about 2,700 tonnes annual catch and is accessed by commercial, charter and amateur fishers. The commercial sector is managed in two zones, one based on input controls and the other on individual transferable quotas. The commercial sector pays 100% of the costs of...
Resource Management and resource sharing issues are intimately connected. Through discussion of a constructed scenario workshop participants were encouraged to share different perspectives on the management challenges of the interaction between resource management, resource access and sectoral resource sharing issues. A key issue expressed by participants was the need to...
The paper first reviews the aquaculture sector in Thailand and focuses on the development of freshwater fish. The government has promoted freshwater fish culture mainly to supply domestically. The development policies that influence markets and access have been stated. It then highlights fish consumption by region. As a result of...
IIFET 2008 keynote presentation. PowerPoint presentation by Dr. Nguyen Huu Dzung, Vietnam Association of Seafood Exporters and Producers (VASEP), Vietnam.
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...
To disseminate update technologies and to enhance capabilities of resource poor farm families for the production of capture as well as culture fisheries, using natural and socio-economic resources an extensive study on linkage between resource availability and production potentiality were undertaken in the study area (under New Alluvial Zone of...
France is Europe's largest market for salmon, close to saturation for traditional products but open to opportunities for differentiated items. Over the last ten years, the supply of salmon-based products has moved from basic items to more sophisticated ones. Processing is one way of turning the product into what consumers...
This paper explores the policy efforts dealing with the problem of declining Pacific Northwest fish runs. Results have been disappointing. Decades of expensive efforts costing billion of dollars have been relatively ineffective in increasing salmon runs. Many species of wild fish continue to decline or remain significantly below target levels...
This paper examines the circumstances under which farmers respond to the introduction of tilapia production technology, and analyzes the manner in which the benefits from such introduction are shared and distributed among recipients. The hypothesis that the inverse relationship between yields and operational land size widely observed in agriculture is...
Over the last four decades, the aquaculture sector especially in developing countries has experienced dramatic growth. The increase in aquaculture production is a combination of area expansion and technological change (enhanced strains, input of feed and fertilizer, and improved management). One example of such technological change is the selective breeding...
Effects of age, period and birth cohort on consumption of fat fish, lean fish and processed fish were estimated based on panel data from the Norwegian Women and Seafood Consumption Study (NOWAC). Cohorts selected for the present analysis were women born between 1951 and 1966. Survey questionnaires were mailed to...
Fishing overcapacity has lead to unsustainable harvesting and rent dissipation in global fisheries. Only government intervention of some kind can lead to a reduction in capacity. If efficiency is the primary objective for the regulator, then the least efficient vessels should be decommissioned. Here we analyze the Swedish fishery using...
This paper deals with the application of a dynamic model, combining Transaction Cost Economics (TCE) and Penrose’s theory of the growth of firms, under the New Institutional Economics (NIE) terms, to analyze and manage the “Agribusiness Innovation System” (SIE) coordinated by an agricultural research-development (R&D) organization in Brazil – Embrapa....
U. S. agriculture is at a crossroads. The value of traditional agricultural exports has fallen while imports have increased. Concerns about the environmental impacts of current agricultural practices threaten profitability. As O'Connell (1989) pointed out in Choices , one answer to U. S. farm problems might be found in the...
In this paper, the estimate of the productive efficiency for some Italian fleet segments is proposed. The estimate is based on a Stochastic Frontier Production (SFP) function and a Data Envelopment Analysis frontier (DEA) using micro data of fishing vessels. The essential random nature of the fishing processes under consideration...
Research on omega-3 fatty acids of marine origin consistently indicates the value of these substances to human health, while seafood processors face the challenge of creating value-added products rich in omega-3 compounds that consumers identify as being both healthful and tasty. In particular, albacore tuna is considered to have large...
Three case studies were included in a study on fishing vessels, most of which use trawl gear in demersal
fisheries. The case studies include the French Bay of Biscay bottom-trawlers, the English beam trawlers
fishing in the English Channel, Celtic Sea and North Sea, and the Basque trawlers fishing in...
Recent increases in the volume of canning grade tuna caught in the Western and Central Pacific Ocean (WCPO) has led to concern about the increasing catching capacity of the fleet of purse seine vessels operating in the fishery. In this paper Data Envelopment Analysis (DEA) is used to examine the...
Japan is both the largest producer and consumer of tuna in the world. However, Taiwan has been a major exporter to Japan of Thunnus albacares and Thunnus obesus recently. For example, the market shares of Taiwan's supply are 20% for T. albacares, and 44% for T. obesus in 1992. Hence,...
Closed areas are often used as either temporary or permanent measures to reduce fishing pressure on stocks. A major concern, however, is what happens to the effort that was previously employed in these areas. When modelling the potential impacts of the closed areas, it is necessary to model changes in...
Because of the stagnation of commercial landings, the development of aquaculture activities is expected to rise during the next decades to match the growing demand for fisheries goods. Overall, it is often expected that the aquaculture sector could reduce to a certain extent the pressure applied over wild stocks. However,...
Seafood is a staple for most Sri Lankans and the country is a net importer of seafood, because of the
heavy consumption. Tsunami has had crippled the Sri Lanka’s main protein supply system and
thousands of others in marketing chain lost their jobs. The main focus of the study was...
This paper presents a critical analysis of the provisions of the WTO agreements and jurisprudence as they relate to the use of trade-related measures in support of cooperative fisheries management arrangements. The interpretation given to WTO agreements by successive Panels and Appellate Bodies has provided guidance regarding how such measures...
Economic indicators are needed for future knowledge-based fisheries management in Vietnam. This entails a good data collecting and processing system. This paper contributes to this requirement for the tuna-mackerel gillnet fishery, near-shore and offshore, in Nha Trang, South-Central Vietnam. For 2005 and 2006 fifty vessels were surveyed for technical characteristics,...
The Constitutional imperative in South Africa after 1994 was to build a just and equitable order that would benefit its entire people's after centuries of social and legal privilege benefited ruling minorities. In
1998 new era fisheries legislation aimed to redistribute fishing access rights and reform the sector. The challenge...
When weak and strong fish stocks are caught in the same fishery, managing for the protection of the weak
stock may result in foregone economic benefits from harvest of the strong stock, while managing for the
strong stock may result in overfishing of the weak stock. A particular complication arises...
This paper examines the ability of a new policy to reduce bycatch of red snapper by the shrimp fishery in the Gulf of Mexico: Fractional License as proposed by Townsend. The policy is evaluated both theoretically and using a simulation model.
The coastal zone is a dynamic area surrounding the interface between land and sea. The coastal area and its resources offer great benefits and opportunities for human use. Most coastal activities in Tanzania rely on the natural resources that the coast offers (fishing, forestry, agriculture, tourism, mining, salt production mariculture...
The geoduck fishery in British Columbia has been managed by individual quotas since 1989. Individual
quotas have fostered a co-operative management approach in the fishery, which is implemented through a
non-profit society with membership made up of licence holders in the fishery. This non-profit society, the
Underwater Harvesters Association (UHA),...
A community based sea urchin (Tripneustes gratilla) culture was chosen as an alternative livelihood by
fisherfolks of Nalvo, a fishing village along the South China Sea in Sta. Maria, Ilocos Sur, Philippines.
The sea urchin culture was adopted among fishermen to augment their rapidly declining income from
fishing. The said...
This paper reports on the valuation of the marine halibut and salmon sport fishery of central and lower Cook Inlet, Alaska. The project was designed to simulate changes in economic value and regional economic impacts for environmental analysis but has also been used in fishery allocation management. This study develops...
Potential changes in the tobacco program have prompted research of aquaculture crops in Kentucky. Using a dynamic, programming model, this paper evaluates two methods for producing pond-raised paddlefish to assess if either method is economically viable in Kentucky. Results indicate that a polyculture system with catfish is profitable.
A two-stage, distributionally neutral and efficient rationalization policy design—one that preserves the ex
ante wealth distribution—is developed by blending elements of a cooperative and a partnership. It is
formally proven that there is no impediment to win-win rationalization using only IFQs allocated only to
harvesters. The design creates a bilateral...
Among the questions that ecosystem-based management raises for economists is how to partition uses of the many biological, chemical and physical attributes of marine ecosystems into sets of property rights that undergird total ocean wealth. An elemental basis of property rights for fisheries involves the interplay between ecological and technological...
Fisheries worldwide continue to suffer from the negative consequences of open access. In 1986, New Zealand responded by establishing an individual transferable quota (ITQ) system that by 1998 included 33 species and more than 150 markets for fishing quotas. We assess these markets in terms of trends in market activity,...
An inverse system framework is followed in this paper to analyse the process of price formation in the Sydney Fish Market for the quota species of Australias South East Fishery. The log-linear version is supported by the data and the system is estimated using the seemingly unrelated regression (SUR) technique....
In response to growing concerns about illness and deaths associated with Vibrio Vulnificus, California initiated a program in March 1991 that required anyone selling oysters to notify potential consumers that the “consumption of raw oysters can cause serious illness and death among people with liver disease, chronic illness, or weakened...
A dynamic game model is used to predict the strategic behavior of harvesters engaged in a non-cooperative fishery on a common property resource. The model predicts that an increase in the current number of harvesters in a common property fishery will reduce both the equilibrium harvest level and the current...