A central objective for UK Department for International Development (DFID) funded research on
renewable natural resource systems has been that the research commissioned results in significant positive
developmental impacts. This paper describes the outcomes of activities employed by the DFID funded
Fisheries Management Science Programme to assess the developmental impact...
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...
Though long a standard technique in engineering and medical research, duration or survival analysis has
become common in economics only in recent decades, and in fisheries economics we are aware of only
one previous study. In this paper, we demonstrate the usefulness of duration analysis to understanding
fleet dynamics, specifically...
Oregon ocean shrimp annual harvest relies on the successful recruitment and growth of age one shrimp. Changes in oceanic conditions appear to have major impacts on recruitment, spatial abundance and growth rates. Successful recruitment has been identified with the timing and strength of the spring transition generating oceanic conditions favorable...
This study investigates the adjustment process of labor in the fishing industry of the Spanish regions
(Autonomous Communities). The analysis is based on a dynamic model applied to a panel of the 10
coastal regions in Spain for the period covering 1965 to 2001. A translog labor demand equation is...
We study the combined effects of periodically varying carrying capacity and survival rates on the fish population in the ocean (sea). We introduce a new delay differential equation model with a control parameter which describes how fish are harvested.
We consider a predation function as the function of the delayed...
The concept of natural resource rents is much used in the natural resource and fisheries
economics literature. It is therefore somewhat surprising that in this same literature it is difficult
to find a clear definition of either natural resource rents or fisheries rents. Possibly, as a result,
the concept is...
This paper proposes a two-stage method to estimate a generalized Gordon-Schaefer model,
using heterogeneous fishing data in the logbook. A Cobb-Douglas production function is consistently
estimated in the first stage by means of the ‘within period estimator’. A stock index
is constructed and used to estimate the logistic growth model...
This paper discusses the connection between the concepts of fishing effort and separability of the
variables in a general fisheries production function of the Translog form. It compares the results
of the discussion with the Cobb-Douglas and Constant Elasticity of Substitution forms. It
concludes that to assume unconditionally that some...
Fisher behavior can be divided into choices made in the short term (i.e. tactics) and choices made in the long-mid term (i.e. strategies). Random utility modeling (RUM) is well suited for the empirical analysis of these issues. In this paper, RUM is applied to a number of EU fisheries in...
By using harvest data for a North East Arctic Cod Fishery in the Barents Sea for the years 1971-1985 a monthly and
daily dimensional harvest function is estimated. The seasonal factors are investigated using dummy variables. The
results indicate that the seasonality is embodied in the catch ability coefficient of...
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...
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...
When dealing with time, a fishery manager faces a major difficulty. On an N-period time horizon, should he follow
several short-run objectives for every n sub-period, or should he consider only the long-run objective? If a European
manager trying to implement a stock recovery plan prefers to achieve the long-run...
Historically, the fishery has been the mainstay of the Newfoundland economy. Inevitably, its importance declined as
economic development proceeded, but was still quite substantial at the time of Confederation with Canada in 1949.
Since then, however, the census figures show a precipitous decline in the role of the fishery in...
The Virginia Fishery Resource Grant Program funded a two year grow-out trial to assess the
feasibility and economic activity associated with proposed introduction of non-native oysters in
Virginia's Chesapeake Bay waters. This paper summarizes the results of the trials which were
conducted to address two main objectives: determine the economic...
Recent increases in imports of catfish and crawfish have caused concern as to their impact on domestic
prices. This study identifies the linkages between imports of these goods and U.S. producer prices.
Increases in imports of catfish are shown to decrease related domestic prices. However, recent trends
show a simultaneous...
In the context of the restriction of production, French agriculture modifies its activities by developing multifunctionality. This concept translates the fact that, beyond the saleable production of agricultural and food processing products, the agricultural activity fulfills other functions: economic, social, environmental. Multifunctionality of agriculture is implemented in a number of...
In the world, Japan has a special place in the fish consumption, as Japanese people are among the most important consumers of aquatic food products, and Japan ranks first as fish importer, for supplying about half of its market. Thus the changes in the Japanese seafood market are susceptible to...
In 2004, United States (U.S.) shrimp landings comprised 11% of shrimp available to the domestic market. Asian and
South America shrimp imports to the U.S. began reaching record levels in 2001, following European Union tariffs
on Asian shrimp. The increased import supply resulted in drastic decline of ex-vessel and wholesale...
Tilapia exports to the US have been claimed to double in the last three years following the two bans on
Vietnamese catfish imports in November 2001 and June 2003. The aim of these bans was to restrict
imports from the major exporter of Catfish (Vietnam) reducing competition for US catfish...
Seafood consumption has been traditionally very important in Spain (about 36.5 kg per capita
consumed in 2003). Hake (merluza) is the main fish species consumed in quantity and value
terms in Spain. But commercialised as hake can be found several fish species and presentations.
When many papers focus on product...
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....
This paper re-examines the evidence of causality and price transmission between fish prices of main species landed into Piraeus (Greece) and Cornwall (UK). To complete the analysis of cointegration and causality, we use the data of Floros and Failler (2004) and Avdelas (2004). Our paper uses the Bivariate Generalised Autoregressive...
Linear approximate almost ideal demand system was employed to estimate demand for Thai frozen shrimp in the United States of America, the main importing country for Thai frozen shrimp. Import demands for the same products from Bangladesh, China, Ecuador, India, Indonesia, Mexico, and Vietnam were simultaneously estimated to compare with...
This paper considers the implications of the sustainability agenda for seafood processors
in the UK. A systems approach, using the value chain system as the conceptual
framework, is adopted to capture the multifaceted and often subjective nature of
‘sustainability’ and accommodate the changing nature of competitive advantage. It is
concluded...
The purpose of this study is to discuss, develop and test the relationship among perceived quality
performance, consumer satisfaction and two different format of loyalty toward seafood. We frame our discussion
with the purpose of drawing together streams from the quality-satisfaction research, loyalty literature, attitude
research and from research on...
This study analyses seafood consumption at home in Spain using three different cross sections (1980,
1990, and 1998). Price indices for seafood and other items are calculated for each household. The
empirical analyses consists of the estimation of double hurdle models of seafood consumption for each
survey, separately. Socio-economic variables...
This paper explores the reasons why the ties between harvesting and processing have been severed in the
Icelandic fisheries in recent decades, and traces the role played by better transport, the emergence of
domestic wet-fish markets, and the introduction of freezing trawlers, as well as other factors in this
development....
Finnish fish markets have traditionally been supplied by domestic wild fish species: Baltic herring, salmon and several freshwater species. Nowadays, farmed salmon and rainbow trout dominate the market and wild-caught species are moving to niche product segment. In this paper we examine the market integration of Finnish fish markets. We...
One of the major sectors of Bangladesh agriculture is represented by the fisheries sector. Being a deltaic land
with numerous rivers and inland haors and beels (lakes and lowland areas of considerable size), and also ponds
that are dug in populated areas for the purpose of bathing, washing and often...
If a scientist can predict the weather (poorly)
Why cannot he predict fish yields (yet more poorly)? – a clerihew by Chris Corkett.
Recent long term historical studies of commercial fisheries have pointed to a well established pattern of overfishing. Under the principle of transference – what is true in...
Tuna, after shrimps, forms the most valuable seafood product in both export and domestic market in Sri Lanka. The
first section of this paper discusses the present status of tuna industry in Sri Lanka and the behavior of export
markets. Secondly, this paper analyzes the impact of technological innovation, effort...
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...
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...
After 1950 traditional herring fisheries were revolutionized by a new technique: sonar, power block, larger
nets and bigger boats. As a result all major herring stocks in the North East Atlantic Ocean collapsed. The
most dramatic decline was that of the Atlanto-Scandian stock between Iceland and Norway from millions
of...
This paper provides a Total Allowable Catch (TAC) assessment model for a single gear, multi-species fishery in South Korea. To estimate appropriate Allowable Biological Catch (ABC) of mackerel and jack mackerel caught by the large purse seine fleet in the territorial waters of South Korea, the model uses an extended...
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...
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...
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...
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...
Globalisation continues to impact the fisheries sector, aided by international governance frameworks in fisheries production and trade. Within these frameworks, tensions exist between trade facilitating measures and trade restricting measures. For example, UNCLOS extended Exclusive Economic Zones to 200 miles, resulting in a significant increase in volume and trade in...
Freshwater fish species and Baltic salmon are important to small-scale fisheries in Finland and Sweden.
The formerly local markets for these species have expanded as the food trade has been opened up
to international competition. In this study we use cointegration analysis to test the spatial integration of
freshwater fish...
Although European fish consumption is increasingly dependant on aquaculture products given the
decrease of worldwide fisheries landings, the image of farmed fish is more and more controversial. This
paper aims at assessing the importance of farmed fish in the European seafood consumption, as well in
terms of image and perception...
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....
The world’s output of farmed fish has grown steadily over the past two decades or so. Most
notably in the UK, since the mid 1980’s, a rapid increase in farmed salmon production has taken
place. Given that many of the world’s oceans are overfished, many see aquaculture as a method...
Global aquaculture production increased with an average rate of 10% per year since 1990 and 90% of
aquaculture production comes from developing countries thus providing livelihood and income especially
to marginal groups who have limited access to resources such as agricultural land and financial capital.
Geographical information systems (GIS) based...
Whatever the quantity and the rate of water utilization is, economic principles indicate that there will
always be other water utilization methods which might increase the efficiency of the use of this resource.
Due to the geo-climatic position of Iran, this country finds itself in a water deficit situation as...
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...
Non-radial measure of technical efficiency of fish farms in Oyo State was examined using Data Envelopment Analysis (DEA). Use of the non-radial measures to calculate overuse of inputs by inefficient fish farmers was demonstrated and the potential for reducing inputs used by improving efficiency was evaluated. Ordinary Least Square (OLS)...