In this study, we tried to develop a theoretical framework based on the Schaefer model and establish bioeconometric models to estimate the index of fishery resources using cross-country macro data. The characteristics of our model are that we consider the effect of natural fluctuations of fishery resources over time (in...
The efficiency analysis literature has long acknowledged the difference between program/policy effects and relative efficiency effects. The use of incentive compatible policy has been an important research agenda for fisheries economists, and Canada uses an array of policies and regulatory tools to fulfill the objectives of their Fisheries Act. One...
The structure of wholesale and retail marketing catfish (Clarias gariepinus) were analysed in order to assess the degree of competition and understand the organization of the farm raised catfish (Clarias gariepinus) market in southwestern Nigeria, a major aquaculture fish producing area in Nigeria. The market was evaluated by considering the...
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,...
Over 90% of global aquaculture production comes fro
m the Asia Pacific region. International trade in live
aquatic animals and the intensification of aquaculture practices over the past several years have led
to
emergence and spread of several aquatic animal diseases in the region. At the same time, while the...
Fish stocks are facing increasing threat of extinct
ion partly due to the use of illegal fishing methods. In developing
coastal countries where fishing activities are the
mainstay of the population along the coast, livelihoods are being
directly threatened. Although a number of studies unearthing factors determining supply of violation...
With the development of the ecosystem approach to f
isheries (EAF), fisheries management is
increasingly required to deal with multiple, often
conflicting objectives. In this context, the
stochastic co-viability approach has been proposed
as a useful modeling framework as it allows
for the combined representation of complex fisherie
s dynamics,...
Export economy has been interrupted in shrimp/prawn, the second largest earning source of Bangladesh due to detection of Nitrofuran in export ed prawns to the EU countries. Around 100 consignments of frozen prawn (Macrobrachium rosenbergii) were rejected at the EU borders between 2005 and 2009. Bangladesh exported shrimp and fish...
The “Lake Chad” is one of the world, largest and most historical Lake located in the Sahel region of
Africa (lat. 12:30 N to 14:30 N and long. 13:00E to
15:30 E ) which is one of the most vulnerable regions
to climate change bordering North-Eastern Nigeria,
North-Western Cameroon, South-Eastern...
The study was carried out in Anyigba, North central
Nigeria to analyze the distribution, marketing and
consumption
of sea food. It specifically sought to describe the
socio-economic characters of the fish marketers and consumers,
identify the distribution channel of fish, the species of fish sold and consumed‚ and preferences in...
In Europe, the United Kingdom is one of the top nine producers of trout. Scotland accounts for
approximately 50% of total production in the UK. This shows that the Scottish trout farming sector is
important both at the local and has relevance within the larger context of pan-European trout production....
Employing an experimental approach, we examine whet
her the uncertainty on the fish/outputs price affects the
choice of vessel sizes of fishers under an ITQ scheme. Our experiment consists of two parts. In the first part,
subjects answer ten questions. The purpose is to extract the risk preference of each...
As many cases of tropical small-scale fisheries, the French Guiana coastal fishery is characterized by
the
high fish biodiversity of its ecosystem, the weak selectivity of the fleets exploiting the resources,
the
heterogeneity of the vessels in term of size and fishing techniques. The traditional tools used to manage
fisheries...
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...
In aquaculture and fisheries, the value chain consists of all the various processes and activities involved in
bringing fish, shellfish, and aquatic plants to market. In some regions it can be an indicator of the
economic welfare of poor communities involved in small-scale operations. In order to maximize
smallholder participation...
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...
The contribution of
fish and fisheries products in the economy of Horn
of Africa countries is substantial to food security,
livelihoods, employment and foreign currency earnings. However, production is mostly characterised by
artisanal fishermen who rely on local and cross border trading conducted through informal and unofficial
market channels and...
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...
The OECD fisheries committee is finalizing a project on the economics of rebuilding fisheries. The focus
of the study has been the economic and institutional aspects of the rebuilding process, and the main
objectives were to identify economic, social and governance components underpinning successful
rebuilding based on the experiences of...
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,...
Recently the greening of fisheries has become a central theme among policymakers. The discussion on
how improved governance structures and policies can
help in achieving green growth goals is yet in its
infancy. One problem is that there is a lack of a general framework in which to address those...
The sustainable management of small-scale fisheries
in coral reef ecosystems constitutes a difficult objective
especially because these fisheries usually face several stringent pressures including demographic growth and climate
changes. The implications are crucial in term of food security as fish represents the major protein source for local
populations in those...
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...
In Zanzibar, an increasing number of women have entered fish markets acting as a link between fishers and
consumers, i.e. a middleman. However, since fisheries are traditionally male dominated, women receive little
recognition. Thus, gender analysis in the fisheries sector potentially can enhance management and development
policies as well as...
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...
Megacities impact distant fisheries behavior by modulating seafood demand and consumption. In the last
decades, Japanese food interest has grown considerably in South American cities, and the demand for raw
fish foods‚ sashimi - categories seems to be still increasing. In Southeastern Brazil, megacities such as
São Paulo show an...
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...
The abalone industry in South Africa is known as one of the largest producing farmed abalone in the world. Most of the farms are located in the Western Cape Province. The growth of abalone aquaculture is expected to continue, however, access to suitable coastal land and the dependence to a...
An investigation was carried out on Lake Geriyo in the month of April to know the pattern of
fish exploitation. The fish species sampled were mainly by using canoes as they were landed at
the landing site of the lake. A total of fourteen (14) species of thirteen (13) families...
The alien invasive red king crab in the Barents Sea represents both a threat through impacts on benthic ecosystem
functions, and a source of income for fishing communities in Northern Norway. Determining the risk the king crab
represents is central both with respect to international obligations and to determine the...
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...
The rapid increase in abalone production and importing of farmed products may pose a serious threat to
wild abalone producing countries, as it could cause negative pressure on prices. This paper investigates
the price relationships for imported abalone in the Japanese market and the implications for wild abalone
producing countries,...
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...
Illegal extraction is a serious issue in many renewable resource industries, such as fisheries and forestry. This traditional approach is to model the resource firm as one cohesive unit or an individual. However, in many cases violations are not committed by an individual, but by agents acting on behalf of...
The paper examines the value chain of cultured fish (Tilapia and African catfish) in central Uganda with an objective of providing information on the topic. Aquaculture has been recognized as a sector to contribute to food security and poverty alleviation in the country. However, there is dearth of information on...
The new small scale fisheries policy has created an action space for marginalised small scale fishers practice their livelihoods and create economic opportunities for their families and communities. The political action space created to formulate a new small scale policy will now be translated to economic action space. This paper...
Interactions between various uses of marine systems and between marine and terrestrially-based activities are quite well documented, and, in some cases, the negative impact of competing activities on the value of wild and farmed fisheries has also been evaluated. While such effects are usually reflected in a decline in the...
Catfish production has experienced a decline in the past two years, and farmers have been blaming international competition, exports, low prices and poor feed conversion ratios as the main causes. We evaluate the usefulness of the Analytic Hierarchy Process (AHP) and the Cost Benefit Analysis (CBA) as instruments for rapid...
Is there a direct link between poverty and illegal fishing in Lake Victoria? The paper argues that presenting poverty as the main driver of illegal fishing in Lake Victoria masks core underlying causes of illegal fishing. Illegal fishing practice is a significant ecological trend in Lake Victoria. It is not...
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...
Abstract Fifty percent (50%) of the fish catch in Oman is estimated to be of low commercial value, which is discarded, fed to animals or marketed for very low prices. Therefore, the development and processing of fish to quality value-added fish products for local or international markets could be a...
Bluefin tuna capture today is focused on large fish caught by longline and smaller fish caught by purse seine for on-growing for between 3 months and 3 years. There has recently been the emergence of full life cycle farming in Japan with South Korea (Pacific bluefin tuna) and Australia (southern...
Motivated by the evidence that many collapsed stocks have failed to recover despite fishing mortality has been reduced, or even when a moratorium is currently in effect, we develop a spline methodological approach to analyze the stochastic population dynamics of fish stocks at low stock levels. The aim of this...
Abstract Only. Commercial aquaculture is gaining momentum in Kenya with farmers looking at it as viable enterprises especially in rural areas. Market for farmed fish in Kenya is quite promising with fish prices in several parts of the country ranging from KES 150 (USD 1.8) per kg. This indicates a...
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...
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....
Past Aquaculture CRSP and AquaFish CRSP research studies in Kenya have largely focused on fish production resulting in improved production technology in aquaculture. In 2007, total fish production was estimated to be 4,245mt valued at US$6.6 million but has since grown exponentially. In Western Kenya, initiatives by cluster fish farmers...
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...
Ecological and economic tradeoffs of proposed management actions were assessed using the Ecopath with Ecosim (EwE) and Ecospace software. The model has 70 biomass pools (e.g., detritus, primary producers, invertebrates, fish, dolphins, sea birds), including multiple age-classes of key species. After mass-balancing, the model was driven using observed fishing mortality...