The relationship between annual growth in the catches of fishing nations and the quality of the institutions of those nations is analyzed. Catch volumes are used as a proxy for development, since economic performance indicators based on a common set of definitions do not exist. 49 major fishing nations were...
Salmon is an anadromous species that during its feeding and spawning migrations is sought after catch for commercial and recreational fisheries. The management of salmon fisheries is complicated by the combination of mixed and single stock fisheries. Thus, the country of origin has sovereign control over harvest of a salmon...
Sierra Leone is blessed with suitable freshwater resources where freshwater and brackish-water fish species can be cultured. It shoreline is approximately 560km long with an estimated 4, 837.8km2 of wetlands and some 500,000ha of mangrove swamps that fringe the coastline. However, not much of these available natural resources has been...
Fish is an important source of protein which is highly needed for human beings to experience
necessary growth and development. This is the reason for the phenomenal rise in the
consumption of fish in order to meet up with the body nutritional requirements. Therefore,
marketing of this source of protein...
The western Indian Ocean coastal regions are poised to develop the great potential, largely untapped to date, for increased seafood production from marine aquaculture. The scales at which aquaculture development in the region proceeds will determine how the benefits from this economic activity are distributed. Finfish and shellfish farming can...
The implementation of ecosystem-based fisheries management (EBFM) requires the development of new analytic tools to integrate environmental, ecological, and socio-economic data from various sources; to capture explicit interactions among ecosystem components; and to simulate and evaluate the effects of alternative management options. We are developing a computable general equilibrium (CGE)...
New socio-economic role models for women in fisheries and aquaculture Stella Williams and Cornelia E.
Nauen The global scale of aquatic ecosystem degradation raises the question on how women in fisheries
and aquaculture can reverse their resulting loss of social status and income by becoming major actors in
the transition...
Sustainability and economic efficiency are well established and defined objectives in Australian fisheries management. Many Australian States and Territories include some reference to social considerations in their fisheries legislation, but this is poorly defined and has little direct influence on policy formulation. From the literature, many fisheries social objectives are...
Using renewable resources can provide society with (i) resource rent, (ii) consumer surplus and (iii) worker surplus in resource harvesting. In a dynamic analysis we show that privatization increases the present value of consumer surplus and worker surplus if harvesting productivity does not depend on the resource stock. If it...
Different methodologies have been used in modeling the epidemiology and economics of aquaculture diseases, including input-output models, benefit-cost analysis, linear programming, simple spreadsheetbased models, compartment models based on differential equations, and spatial models. Despite the advantages that these models provide, there is a need to develop a more integrated approach...
Identifying fishing vessel affiliations, which are groups of vessels connected by common owners or other factors such as ties to another business or contractual relationships, is important for two reasons. The first reason is that it allows for assessments of potential market power and/or equity considerations in catch share fisheries....
In the Baltic Sea, the successful conservation of grey seals has increased seal-induced damages to the Atlantic salmon fishery. The paper addresses the conflict between the conservation of the formerly endangered species and professional fishermen whose livelihood is also regulated by fisheries management. We develop a bioeconomic model that accounts...
Demand structure and market segmentation for seafood have been investigated intensively. However, most the researches so far applied traditional demand analysis and descriptive segmentation approach by separated models. The traditional demand analysis assuming consumer homogeneity, behavior consistence, and using aggregate data may result biased estimation, while the segmentation based on...
Skipjack migrates from the equatorial region to the high latitude. Skipjack fishery is mainly exercised by the purse seine vessels. The stock evaluation of the skipjack is plentiful. However, in 2009, the catch of the Japanese offshore skipjack fishery declined. WCPFC Scientific Committee sixth regular session summary report mentioned that...
With international efforts to develop ecosystem-based management of ocean uses, there has been a growing call for the development of integrated assessment tools, including the design of models which can be used to identify possible futures and evaluate alternative management strategies. Along with this, there is increasing recognition that such...
Vietnam has been ranked as one of the countries in Asia with the highest vulnerabilities to climate change impacts on fisheries and aquaculture. Eight of those ten provinces are located in the Mekong River Delta, including Ben Tre Province. We conducted a study to identify the impacts of climate change...
Understanding how people value ecosystem goods and services can provide important information to managers and planners. Marine protected area valuations often focus on marketed goods and services. For many traditional fisherfolk, however, non-marketed ecosystem services are critically important inputs to their wellbeing. Using discrete choice experiments (DCEs), we quantify the...
Consumers all over the world have a strong preference for fresh newly harvested fish, which is reflected in a higher market value compared to most other preserved and processed fish products. The perishability of the fresh fish and the distribution distance drive in contrary the fish value chains into preservation...
The aim of the paper is to explore the economic environment that makes informal fish trading possible, the nature of these activities and how they are interconnected or might stimulate IUU fishing activities in the port of Progreso, Yucatan, Mexico. The main argument is that fish trading by middlemen has...
By 1992, the Canadian cod populations collapsed and
a moratorium on fishing was declared, which
remains in place until today. Ecologists suspect that the marine ecosystem at the Canadian east coast
has
shifted towards a new regime, where cod stocks remain at a low level while other species biomass levels,...
The current fish import deficit experienced in Nigeria has reached a level whereby the government has called on all citizens to engage in fish production through aquaculture in both homestead, cottage and industrial levels. The organized private sector, especially groups of women have taken it upon themselves to contribute their...
There is growing realization of the potential for games and experiments as powerful tools not only for research, but also for education and outreach. Experiments are particularly powerful and useful for fisheries economists because (a) they can vividly illustrate some fundamental concepts and (b) are effective at testing the relative...
The role of Women and their rights in Fisheries and Aquaculture Development in Africa. Generally speaking, the word "Gender" refers to the socially constructed roles and status of women and men, girls and boys, behaviors, activities, and attributes that a given society considers appropriate for men and women. Thus, In...
Ecosystem based fishery management has moved beyond rhetorical statements calling for a more holistic approach to resource management, to implementing decisions on resource use that are compatible with goals of maintaining ecosystem health and resilience. Coupled economic-ecological models are a primary tool for informing these decisions. Recognizing the importance of...
The purpose of this article is to report the results of a statistical investigation of links in the fish supply chain in Uganda. We are particularly interested in the extent of ex-vessel prices impacting links downstream in the fish supply chain. We test for vertical and horizontal co-integration for five...
Pacific sardine (Sardinops sagax) in the California Current Ecosystem (CCE) has exhibited extreme sensitivity in its abundance and distribution in the face of decadal-scale climate regime changes. Warm regimes enhance the abundance of Pacific sardine and expand its distribution. Cold regimes lessen the abundance and restrict the distribution. For instance,...
The trade of fish and fish products in Africa is expanding significantly as a function of increased demand for fish in
the region and across the world. Several factors which could be attributed to the rising trend include
increasing fish
consumption due to population growth, health awareness, dwindling production from...
COMMUNITY PARTICIPATION IN FISHERIES MANAGEMENT Abstract: Artisanal or Small scale inshore fisheries are one of the economic sub sectors of the economy and make valuable economic contribution to the coastal communities of Tanzania. It provides rich protein food, employment, income thus contribute to their livelihood. The fishery also contributes significantly...
The central objective of fishery management is to ensure the sustainability and profitability of the resource base. The
importance of the fish stock's age-structure is increasingly recognized in economics and ecology. Still, current
policies predominately rely on the aggregate biomass. We carefully calibrate a detailed model on the North-East
Arctic...
Capture fisheries and aquaculture in freshwater bodies play a very important role and is considered to have great potential for augmenting fish production as well as diversification of livelihoods in both Cambodia and Vietnam. In Cambodia, inland fisheries remain primary importance in the fisheries sector, while aquaculture is more important...
Two major institutional revolutions are impacting fisheries around the globe -- sustainability and property rights. The sustainability revolution ensures that fisheries and supporting ecosystems are conserved so that future generations can access healthy fishery resources. The second revolution creates institutions in the form of economic incentives and privileges that are...
Climate change will have a wide range of impacts on fisheries, other human uses of marine systems, and the coastal communities that depend on the ocean for their livelihoods. This presentation focuses on small-scale fisheries, providing a review of the current state of knowledge on social and economic impacts of...
A sine-qua-non for eradicating protein malnutrition in Nigeria is increased ingestion of high-value proteins found in various fish forms. This study attempted to give empirical backing or refutation to the assertion that dried fish is consumed more than fresh fish in Nigeria. Data used were gathered in 90 rural and...
The fairness and inclusiveness of globalization in seafood trade is coming under increased scrutiny due to economic, social and environmental impacts created as trade has expanded, often leading to imbalances among nations. The European Union is the most important world market for the consumption of seafood. Despite the construction of...
Despite various studies on biological importance of Marine Protected Areas (MPA), a model used in fisheries management to minimise negative human impacts on the marine environment, less is known on how it relates with communities that depend on the utilisation of fisheries resources. Through field survey, this study has investigated...
The objective of this paper is to study the economic management of Eastern
Baltic cod (Gadusmorhua) under the influence of nutrient enrichment. Average
nitrogen concentration in the spawning areas during the spawning season of
cod stock is chosen to be an indicator of nutrient enrichment. The optimal cod
stock is...
This paper provides summaries of presentations at a special session of IIFET 2012 that explored the potential value of a ‘wellbeing’ approach in small-scale fisheries, drawing on insights from the Governing Small-Scale Fisheries for Wellbeing and Resilience project. The research aimed to apply wellbeing concepts to both better understand fishery...
To keep pace with growing demand, wild fisheries are subject to high pressure. An increasing trend in the percentage of overexploited, depleted and recovering stocks is observed since the mid-1970s. In contrast, the aquaculture sector has been the fastest growing food industry since 1970. It has become a substantial source...
The productivity and resilience of fisheries are subject to a multitude of dynamic and interrelated influences that arise from complex coupling of fish populations with the natural and human systems of which they are a part. With few exceptions, fisheries are managed independently, ignoring important natural and human linkages among...
Climate changes are growing environmental concerns which are much in the scientific government and public eye at present. The potential impact on aquatic resources and livelihood are immense. From local to global levels, fisheries and aquaculture play important roles for food supply, food security and income generation. Some 43.5 million...
Marine protected areas (MPAs) are commonly used as a management tool to conserve marine resources. The conservation costs of MPAs are well known and often borne largely by local communities, while the benefits received by the communities are less known and more variable. Local communities become resistant to the idea...
Africa has traditionally depended on capture fisheries for most of its fish and fish products. However,
with capture fisheries dwindling and human population increasing, alternative sources have become
necessary. Although practiced for many decades, East African fish farming has been funded by donors
whose main interest has been on subsistence...
An economic survey of the commercial operators currently active in the Queensland Reef Line fishery has been carried out, as part of a research project aimed at evaluating options available to manage the fishery. We present the background analysis of the fishery used as a basis to develop the sampling...
The Aquaculture & Fisheries Collaborative Research Support Program (AquaFish CRSP) fosters the development of technological innovations in aquaculture and fisheries to provide direct results for increased production and decreased environmental impacts in host countries. Ensuring the availability and accessibility of successful technologies through in ventive dissemination techniques is a high...
With growing concern over sustainable production, consumption and food security, new risks and
uncertainties are emerging for the seafood industry. These arise from diverse sources and multiple levels,
including supplies availability, market drivers, NGO pressures, regulation etc. In the face of this, our
traditional means of establishing ‚what is going...
Skipjack migrates from the equatorial region to the high latitude. Skipjack fishery is mainly exercised by the purse seine vessels. The stock evaluation of the skipjack is plentiful. However, in 2009, the catch of the Japanese offshore skipjack fishery declined. WCPFC Scientific Committee sixth regular session summary report mentioned that...
One of the major tasks within the SOCIOEC project is the investigation of the incentive structure and associated behavioral responses of fishers related to specific management measures. To analyze the incentives several methods will be used, including a novel approach using the game ecoOcean. EcoOcean is a graphical interface presenting...
Traditionally, Mukene (Rastrineobola argentea) is always sun-dried because of its small size and large volumes caught per unit fishing effort. As such, the manner of handling has rendered it unacceptable to the majority of consumers due to poor quality which has resulted into high-post losses and relegation to animal feed...
On the basis of proposals made by the European Commission, a reformed Common Fisheries Policy (CFP) for the European Union is foreseen to enter into force during 2013. The European Commission proposal for the CFP reform was supported by an impact assessment analysing the economic, social, and environmental impacts of...
Many developed nations have accessed the diverse benefits of recreational fisheries in their this is not yet so in developing countries, this study explored the viability of recreational fisheries in two Nigerian Lakes.
Biological resources were sampled for twelve (12) months on Lakes Asejire and Oyan all in the forest...
Over half of Bangladesh comprises of floodplains and most of the surrounding households depend on these floodplains for their livelihood. However, these floodplains remain unused during the monsoon season due to the lack of proper management systems. The WorldFish Center implemented an action research project through a Community Based Fish...
Session #504 A Benefit-Cost Analysis using ratios of annual costs and benefits was calculated for fish farmers (aquaculture) and fish marketers (including distributors, processors and retailers). Forty five of the 86 respondents had a benefit cost ratio higher than 1. Further analysis investigated effects of selected variables on ratios. Relative...
Indonesia in 2012 will catch above 0.5 million tonnes of tuna and a further 0.4 million tonnes of tuna-like species. This represents 11% of the total world tuna catch and makes Indonesia the largest catching nation, a position previously held by Japan. Indonesia plays a major role in the world...
Over the past 30 years, fisheries management on the west coast of the United States has undergone a rapid evolution. Starting with very limited management and stock assessment techniques, the complexity of fishery models and size and breadth of fishery data sets have gradually increased, which has coincided with increasingly...
Full life cycle culture of bluefin tuna has so far been achieved only for Pacific bluefin tuna by the Japanese at Kinki University in 2002 with the first fish going on sale in Japan in 2004. More recently Japan's Okinawa fisheries laboratories have also achieved the same success, with the...
The authors pose the following: "Is it possible for the remaining fish-processing
industry in Norway to survive in the future?" They discuss the relative advantages of
doing processing in 'rich' versus 'poor' countries. There are some location advantages for Norwegian fish processors, but these can be difficult to exploit. To...
Pacific sardine (Sardinops sagax) in the California Current Ecosystem (CCE) has exhibited extreme sensitivity in its abundance and distribution in the face of decadal-scale climate regime changes. Warm regimes enhance the abundance of Pacific sardine and expand its distribution. Cold regimes lessen the abundance and restrict the distribution. For instance,...
Women in fishing communities play multidimensional roles. Women pervade fisheries and their roles
were identified as workers in both fisheries, markets, processing plants and non-fishery, mothers who
give birth to successors, as caregivers of the family, as connecting agents of social networks, as
representatives of local culture, as community workers...
Fishery scientists distinguish between recruitment overfishing (i.e. suboptimally low reproduction because the spawning stock is fished down) and growth overfishing (i.e. catching fish at an inefficiently young age). We use an age-structured bio-economic model to study how important the (endogenous) recruitment is compared to the growth of individual fish under...
Social networks and social capital can facilitate or constrain collaborative arrangements which can enhance resource governance and adaptability in complex social-ecological systems such as fisheries. Yet, the impact of ethnic diversity among resource users on social network capital in the context of resource governance has not been previously examined. To...
Climate change is generally agreed to be one of the biggest challenges facing the world today, and Australia is no exception. Marine fisheries productivity and distribution is predicted to change with ocean warming. Here, I will examine the economic consequences of climate change on the Australian fishing industry. I will...
Nigeria has very low per capita consumption of animal protein when compared to some countries of the world. To redress this, research into the investment opportunity in the fisheries subsector, reputed to be nutritionally superior to livestock in animal protein content, should be emphasized. Investment and development in the artisanal...
Lake Victoria, with 68,800km2 of surface area, is the largest tropical lake and supports Africa‚ largest fishery. The Lake‚ waters are divided among three countries (Kenya, Uganda and Tanzania). Estimates indicate that riparian states earn US$500-US$550 million annually from fish catches from the lake. Fish biomass monitoring using acoustics and...
The purpose of this article and presentation is to present an overview of the value-chain analysis project on international fish trade and food security with an impact assessment of the small-scale sector. Outlining the project’s importance, approach, results and conclusions, the summary article serves as an initial background document to...
Fish is important for food security. This paper poses the question: Is fisheries and aquaculture just another food production system? It is highlighted here that fisheries and aquaculture sector is not just another food production system which is necessary for food and income but it is a system which has...
The World Bank has constructed wealth accounts for nearly 15 years, most recently in The Changing Wealth of Nations. The accounts include produced capital, natural capital and human and social capital. Natural capital includes agricultural land, forests, subsoil assets and protected areas, but omit a number of critical natural capital...
Research on the linkages between climate change, coastal communities and gender is scarce. In this presentation we address this from a marine resource management perspective based on ecosystem goods and services, gendered adaptive capacity and its links to transformative agency. The hypothesis is that there are gender differences in resource...
In this paper, we estimated the costs and benefits of keeping pension fishers in the community. 34% of the 200 thousand fishers in Japan are over the age of 65. Since the fishers over 65 are pensioners, their fishery income is an additional source of livelihood. The average yearly income...
The noble crayfish fishery in the Ljungan river system in Sweden has been subjected to two major shocks; hydropower development in the 1970s, which reduced water flow throughout the system with attendant effects on the crayfish stocks, and an outbreak of crayfish plague in the 1990s which wiped out the...
In order to survive and prosper fishing companies have to balance the need for continuity and change. Investment strategy is a good indicator on the direction companies are headed in terms of capacity, onboard production, and the financial risks they are willing to take. However, the success of an investment...
The Food and Agriculture Organization (FAO) of the United Nations has for years compiled prices and indexes for all major food categories, except fisheries. This gap has now been filled, and a fish price index has been developed. The FAO fish price index (FPI) relies on trade statistics because seafood...
From earliest times and in practically all countries, fisheries have been of industrial and commercial importance. Fisheries and aquaculture contribute significantly to food security. Livelihoods of millions of people, across the regions of the globe depend on healthy aquatic ecosystems. Achieving the Millennium Development Goals to eliminate extreme poverty by...
Disease is a primary threat to the continued growth in salmon aquaculture due to its extensive effects on the sector. Aquaculture farms suffer the most direct and immediate economic losses through reduction in growth, low feed efficiency and market prices, increasing mortality rates, and expenditures on prevention and treatment measures....
Quota, a computer-based simulation game, originated as an experimental game for testing alternative multi-resource management regimes or systems. Highly flexible, it allows specification for a standard common-property, open-access fishery with user-specified bio-economic fishery growth model and multiple sized producers with individual harvest and cost functions. In addition to demonstrating overfishing...
At a 1969 conference, Coase provided rather scathing comment on a paper co-authored by Scott (Economics of Fisheries Management: A Symposium, University of British Columbia, Vancouver, 1970.) That comment is remarkable inasmuch as Scott thought that he was using a transactions cost approach based upon Coase (1960). This paper will...
Short-lived fisheries stocks are subject to large fluctuations in abundance and respond rapidly to many factors
including changes in oceanographic conditions, biological interactions and fishery exploitation. Management of
such species requires a flexible, adaptive framework that responds rapidly to a changing environment, although such
schemes are rarely operationalized. In this...
Individual transferable quotas (ITQs) in multispecies fisheries create incentives for fishermen to avoid bycatch of
species for which quota is scarce. However, when bycatch is highly uncertain, individual quota demand and prices
may be volatile creating substantial financial risk for fishermen. The US Pacific Groundfish fishery recently
introduced an ITQ...
A study was carried out to assess production performance and value chain of Nile tilapia grown in ponds of small-scale farmers in Morogoro region, Tanzania. Information was collected through individual interviews of 30 fish farmers. The main reasons for culturing fish were provision of animal protein food for home consumption...
In Africa at least 10 million people depend in fisheries. 90% of fish is from the continent is landed by small-scale fishers. The value of landed catch from the continent is estimated at $2.7 billion annually. In southern Africa, the main fishery resources range from inland lake and river systems...
The role of small-scale fisheries in developing countries has been widely discussed in the fisheries and‚
“commons”‚ literature. However, in the conservationist debate, even small-scale fishing has often been
seen as a potential evil that indeed threatens ecosystem health and should be broadly and rapidly
eliminated. Besides the global commitments...
A research was conducted to evaluate the economics of attaining food securing through growing African catfish, Clarias gariepinus sustainably in small culture chambers. A total number of 360 fingerlings of mean weight 8.10g were stocked in four (4) plastic tanks of 350 litre capacity each, stocked at 80 fish per...
Producing for the Future is an Oregon State University research project where youth, adult partners, and OSU researchers work together to design and plant a community garden and develop a microenterprise venture to market the produce grown. Using the CBPR process, everyone on the project collects and analyze data evaluating...
A study of Somaliland’s marine capture fisheries and markets was conducted in October 2010. The paper presents the results of the author’s assessment of the state of its marine capture fisheries and fresh fish markets and the prospects for adding value along the supply chain resulting from a 2 week...
Molluscan internal defenses rely heavily on circulating hemocytes. In most cases, encounters with large foreign bodies result in recognition by hemocytes followed by spreading of these defense cells over the object’s surface. The resulting encapsulation concentrates the force of the hemocytes’ assault on the foreign object.
B. glabrata snail lines...
Poster given at 2012 Library Assessment Conference - Charlottesville, Virginia. Poster earned Judge's Choice award in Organizational Performance poster category