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...
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 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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
A number of simulations have been carried out to study different management scenarios in the Barents Sea cod fisheries when implementing physical and biological effects of global warming. A regional representation of the IPCC SPRES B2 scenario (world region OECD90) has been obtained through the REMO5.1 model. Water temperatures and...
The success or failure of aquaculture heavily depends on how effectively to manage aquatic animal
diseases. In order to analyze the economic effects of aquatic animal disease control, the specific factors
and magnitudes of benefits and costs are identified with and without the proposed project for the disease
control. These...
Fishmeal prices have increased sharply since the mid-2005 and the relationship between the prices of animal and vegetable proteins have become weaker, at least temporarily. This can be explained by a relatively constant fishmeal supply, which have varied around 6-7 million metric tons the last two decades, and an increasing...
Aquaculture worldwide has grown rapidly, and while this has brought socio-economic benefits to particular regions there is persistent concern over its environmental impact and sustainability. Within Europe there are quite marked regional variations in the intensity of marine aquaculture, and the fact that this occurs in areas where there is...
The experiences on reproductive management of native specie such as Petenia splendida (Tenhuayaca) in the last four years in Tabasco, Mexico has generated enough information to allow the development of a technological package for supporting sustainable rural production, particularly in areas where most of the population belongs to ethnical groups....
Assuming externalities from aquaculture to fisheries, we use a Verhulst-Schaefer model of fish
population-dynamics and production, coupled with an aquaculture production model, to investigate
effects on open-access and rent-maximising fisheries. Externalities are modelled by letting carrying
capacity, intrinsic growth rate or catchability coefficient in the fishery depend on aquaculture production....
The direct economic values of aquatic resources used in various livelihood activities by
households in selected rural villages of Cambodia were estimated using the net economic value
approach. Data utilized were from 540 aquatic resources dependent households from 3 provinces
gathered using household survey, longitudinal monitoring and participatory rural appraisal...
There is much talk on recycling organic effluents, closing nutrient cycles, maximising energetic efficiency, and maintaining
equilibriums between humans and nature, etc., even for lakes and estuaries. Aquatic systems provide us (humans)
the service of recycling decomposable organics and deliver fish at the same time, notably, as long as the...
The animal protein intake in Nigeria is grossly insufficient yet the retail price of fish is rising. Market intermediaries, alleged to charge excessive and unjustifiable marketing margins (MM), are often blamed for this. This study examines this allegation using data from 225 sun-dried fish traders classified into three groups. Data...
In many salt-water recreational settings an imprecise measure of site choice is often collected based upon the individual's launch-point. For anglers who continue on from the launch-point in a boat, this imprecise measure of site choice is likely missing important on-water trade-offs thereby affecting the accuracy of recreational benefit measures...
Indicators of the economic performance of fishing vessels are frequently computed in many countries. Usually, measures of economic performance are based on the return on capital invested. However, several measures of capital value exist, according to the economic information available. In this paper, we use different types of information to...
The paper presents a spreadsheet based benefit-cost framework for assessing the net benefits of domestic
tuna processing to the resource-owning nation. The framework has a number of advantages including
transparency, flexibility, and a check on internal consistency. The case study examines the effects of a
range of tax, access fee...
Shrimp farming in Iran is one of the fast growing segments of the economy. In 1994, around 1%
of Iranian shrimp production was farmed and by 2003 the share of shrimp farming increased to
60%. In spite of the fact that shrimp culture had relatively rapid growth in last decade,...
This paper studies the consequences of creating a marine protected area (MPA) on a recreational non-extractive use of the ecosystem (scuba diving), and draws a parallel with the impact of MPAs on
commercial fishing. The first part of the paper presents some preliminary results of a field survey of scuba...
An economic assessment of the commercial harvesting sector, seafood processing and distribution
sectors, charter boats for hire, livebait boats and dealer houses, marinas, support facilities, and
recreational boats was undertaken in Mississippi to determine the level of damage sustained as a
result of Hurricane Katrina. The devastation by this hurricane...
The open access nature of fisheries resources had caused application of excessive fishing effort to most World fisheries. Proper
management of fisheries resources is vital for sustainability and its safe future utilisation. Most attempts to salvage fisheries resources
had so far succeeded but have also created one or more problems....
In multispecies fisheries managed with individual fishery quotas (IFQs), fishers targeting certain species often have
insufficient quota to cover other jointly caught species. New Zealand employs a unique dual price-quantity system to
address this problem. In lieu of acquiring quota, fishers can opt to pay a fee per unit of...
Early in 2002, members of two Producer Organisations (POs), the North Sea Fishermen’s
Organisation in Britain, and the Dutch Cooperative Producentenorganisatie Oost Nederland,
realised that their quotas of plaice and sole were insufficient to last until the end of the quota
period. Vessels have in the order of 70-80% of...
This paper provides a working definition of bioeconometrics and a taxonomy of model types. A bioeconometric model is an empirical model of a bioeconomic system in which quantitative changes in one or more parameters can affect the qualitative behavior of the dynamical system. Bioeconometric model types include equilibrium, dynamically decoupled,...
The objective of this study is to investigate the sustainability properties of the stock of the shrimp trawl
fishery in the Tonkin Gulf, Vietnam. Surplus production models of Verhulst-Schaefer and Gompertz-Fox
are applied to the shrimp trawl fishery, which is a typical tropical fishery with the characteristic properties
of small...
This is a study on economic implications of the 3 year harvest control rule (HCR) for the Northeast Arctic
cod stock, decided in November 2002 by the Joint Norwegian-Russian Fisheries Commission. Outcomes
of this rule are compared to those of five other rules, including the previous one based on a...
Fisheries biologists and other marine scientists working closely with the regional fisheries organisations (RFOs), such as the International Council for Exploration of the Sea (ICES) have developed and applied different concepts and methods, including reference points, for assessment and management of fish stocks. However, management recommendations are usually not based...
This paper deals with the economic impact of an aquatic invasive alien species on a coastal shellfish
fishery. A slipper-limpet (Crepidula fornicata ) was accidentally imported some decades ago, has
established and is spreading in the bay of Saint-Brieuc (France). This exotic species is acting as a space
competitor for...
Four commercial fisheries off Alaska’s coast are managed by transferable quota systems. Implementation
of each quota program was controversial, and two programs were mandated by federal legislation rather
than standard rulemaking procedure. Pacific halibut and sablefish are managed by individual harvest
quota programs, which were designed to maintain a predominantly...
In Africa, there is a growing awareness of the need to learn from the fisheries experiences of Asia, where the fisheries conditions are similar, to solve the deepening crisis in fisheries and poverty in the continent. As a response, technical assistance in the areas of fish stock assessment, fisheries management...
Fisheries managers around the world have identified bycatch as a key management challenge in fisheries today. However, like the classic common property open-access problem in fisheries, a limit on fleet-wide bycatch may have similar consequences for fishing practices since bycatch is a common property open-access resource. If avoiding bycatch is...
A bio-economic model, based on Faustmann rotation, was developed to analyze the relevance of
removing thinning activities which are part of the dominant technology used in blue mussel production in
Canada. Removing these density control activities (thinning) seemed a profitable option to producers. It
was thought that this collector line...
As early as 1491 in an Act of Parliament during the reign of Henry VII of England, overfishing and
the capture of juveniles were recognized as root causes of declining fish catches, and since then,
minimum capture sizes, closed seasons and areas, and gear restrictions have been implemented to
address...
The International Plan of Action for the Management of Fishing Capacity (IPOA-Capacity) was introduced in 1999 in response to growing concerns about excessive levels of fishing capacity and its impact on global fisheries resources. While debate in academic circles has focused on appropriate ways in which to measure capacity, the...