We analyze the financial technical feasibility of an assembly would have a productive activity in the Lagoon of Pueblo Viejo, Veracruz, Mexico, based on the exploitation of the American oyster (Crassostrea virginica) fishery resource, for project evaluation: Implications for the marketing of fishery and aquaculture products: oyster case "by the...
For proper utilization of Tal wetland ecosystem through natural resource
management and for updating production system through the integration of
fish-crop diversity and its proper implications to its farmers level through
modernizing adaptive technologies as well, IT system, a composite
zonewise TOT programmes (use of natural resources, farm demonstrations,
farmers...
This contribution employs a „fish chain‟ approach or ocean to plate analysis to examine key market drivers affecting Northern Gulf cod fisheries recovery since their collapse in the early 1990s. Drawing upon the backward bending supply model of fisheries; secondary data was compiled and analyzed for the pre- and post-collapse...
In developing countries the framework for institutional engagement in small-scale fishing communities needs to consider the regional, social, economic and environmental complexities of informal resource-based economies. The combination of socio-economic trajectory of artisanal fisherfolks, their relationship with the environment, the economic pressures and the public policy framework, which often regarded...
It is generally assumed that multi-species fleets operate in a generalist
fashion, given diversity of gears employed. An analysis of gears, species
and spatial fishing effort allocation can give an indication if those patters
are indeed common in these types of fleets. In this paper we examine the
fishing operations...
For every fish species, future potential harvests are impacted by current
catch levels and patterns. Traditionally, managers use regulations on gear
(e.g., mesh size) to control so-called growth overfishing. Such regulations
are likely economically inefficient due to increased search costs and lower
catch rates. Bioeconomic models typically evaluate efficiency for...
Fishery is one of the sub-sectors of agri-cultural sector which plays a
significant role in the economy of Bangladesh. However, fishermen are
deprived from getting reasonable prices of their catches due to a large price
spread between the price paid by the ultimate consumers or users and price
received by...
The individual size of fish as a proxy for life-history traits and market
value displays an important, yet in bioeconomic modelling often ignored
biological and economic parameter. This raises the question if and to what
extent the consideration of a pricing related to the individual size
influences optimal harvest strategies....
Fisheries management is an issue that draws out conflicting responses
about the role of the state, the market and civil society over the
management of natural resources. As an individual, anybody who is
exploiting the common resource will not think of any conservation because
the benefits in the short term...
In Peru, the fisheries are characterized by a strong fishmeal industry. The
species used for fishmeal production is mainly anchovy and also some
other small pelagic species. There is some concern that an excellent source
of food is used for a product not directly going for human consumption.
Since several...
Bio-economic models are increasingly used to provide scientific advice in
fisheries management integrating both biological and socio-economic
considerations. In this context it becomes important to evaluate how
different recovery scenarios will influence the future situation for the
fishing fleets, particularly through the investment/disinvestment decisions
of fishing capacity.
In this paper,...
The objective of this research is twofold. First, this study uses a
cointegration model to investigate possible potential long-run pricing
relationships among the major landings of the Hawaii tuna longline fishery
(bigeye, yellowfin, skipjack, and albacore tuna). This analysis will
determine to what extent changes in the price of one...
Using primary data collected from 208 shrimp farming households and 69 households leasing-out land for shrimp farming, this paper explores the demographic and economic factors influencing the land leasing decisions for traditional and scientific shrimp farming in West Bengal, India, applying Tobit Model. The results indicate that size of households‟...
In the market development of sustainable seafood, such as MSC-certified products, the Japanese market is one of
the most important markets if measured by size: it is the largest seafood importer and the second largest
consumer in the world, after China. However, little research has been done on Japanese consumer...
The northwest coast of Mexico is accountable for almost 70 % of the
country´s fishery production. This region, which includes the Gulf of
California and the Pacific coast of the Baja California Peninsula, is also
extremely important in terms of biodiversity and the presence of endemic
species. Consequently, eleven marine...
Fisheries co-management as an alternative to centralized command and
control fisheries management is often suggested as a solution to the
problems of fisheries resource use conflicts and overexploitation. Various
researchers have talked of the importance of studying the role of
transaction costs between different institutional arrangements for managing
fisheries resources....
Consolidates existing knowledge on the political economy of property rights in natural resources and integrates lessons learned from developmental aid and fisheries and non-fishery case studies to provide a methodological approach for future case study work on fisheries reform. Objective: Link fisheries reform strategies with in-country political economy conditions.
To achieve sustainable fisheries, ecosystem-based fisheries management
yields increasing attention. However, so far mainly single-species models
are used to develop management advice, not accounting for species
interaction. In particular many traditional fisheries economic models have
been criticized by biologists, especially if results were gained by rather
simple biomass models. Therefore,...
Marine scientists and stakeholders are increasingly advocating ecosystembased
fishery management (EBFM). However, the way to operationalize
such EBFM remains controversial. The viability approach can be a relevant
modelling framework for EBFM as it accounts for dynamic complexities,
uncertainties, risks and sustainability objectives balancing ecological,
economic and social dimensions together with...
Small-scale aquaculture is fundamental to the livelihoods of many of the
rural poor in Asia and Africa. There is growing evidence that in many cases
the poorer people have the greater dependence on aquatic resources,
particularly low-value fish and non-fish aquatic resources. However, in
spite of the benefits, the potential...
The PNBA is one of the largest MPAs in Africa. Only subsistence fishing
by resident populations is authorized either on foot or using non-motorized
dories, limited in number to 100.
A development policy was adopted in 1998 to benefit the resident
population by: (i) re-deploying fishing effort targeting a non-sustainable...
In Africa, the artisanal fishing plays a crucial role in the economy and
nutrition of populations. She participates in the equilibrium of the balance
of payments, and generates significant jobs. On the coast of Senegal in
particular, artisanal fisheries ranked first in economic activities. It carries
more than 1.8% of...
Since the seventies, the Malagasy fishery sector management has been
oriented by three paradigms: development, rationalization (looking for
economic efficiency) and attempts of sustainable development (to reconcile
economic, social and conservation goals). The institutional and legal frame
of the marine sector has been characterized by many transformations linked
to the...
The bycatch problem has remained troubling and persistent, even in
fisheries that have rationalized their target fisheries. The Alaskan Pollock
fishery is an example of a fishery struggling to contain the bycatch of
salmon in spite of a transformation of incentives associated with a
harvester coop system in the target...
Indicators are widely used in fisheries management decision process as
measures for monitoring ecosystem status or management performance. In
the current context, the shift to an ecosystem-based approach to fisheries
management requires to complete usual population or community
indicators with indicators reflecting state and dynamics of fishing activity
as well...
Implementation of the U.S. Marine Mammal Protection Act (MMPA)
generates costs to both the public and private sectors. While many of the
costs are complementary, some result in potential tradeoffs between
various groups incurring these costs. Under the MMPA, if estimated
bycatch of a species exceeds its Potential Biological Removal...
In this paper a data envelopment model is presented to evaluate short term investment decisions in the Dutch beam trawl and demersal fleet. We investigated how short run profit drives investment decisions and how a data envelopment analysis can be used to show what the optimal level of capital use...
Pangasius culture in recent years has proved its ability to contribute to national wealth and prosperity. As far as domestic consumption is concerned, pangasius represents an important source of nutrient intake for a large portion of the population. Multiple effects have been generated through large-scale exports, which is associated with...
Since 2004, the French fishery field has had to cope with a levelling off of
consumption of fresh seafood products whereas the consumption of processed seafood
products is increasing. Nowadays, consumers prefer easier products: fresh deli products,
easy to cook or ready to consume. Therefore, fresh seafood products do not...
This video was produced by the Japan International Cooperation Agency to show the fisheries co-management activities recently adopted in Senegal. The structure of the video is as follows: causes of decline of fisheries resources, change of strategy from top-down to bottom-up fisheries management, building consensus among the fishermen with the...
Management of fisheries and aquaculture is an issue that has received widespread attention in
the literature. The particular concern is the relationship among fishermen, fish farmers,
management institution and fish resources. This relationship is very important for sustainable
development of sea resources in Iran. Overfishing, uncertainty in fish availability and...
Economists have devoted considerable attention to rent-dissipation in limited-entry fisheries as a result of excessive use of capital inputs, or "capital stuffing." We may refer to this mechanism of rent dissipation as "cost-driven rent dissipation." An alternative potential mechanism of rent dissipation, which we refer to as "value-driven rent dissipation,"...
In Indonesia, shrimp pond development and shrimp production expended significantly. There are also signs that this expansion has caused an environmental damaged, especially on the existence on mangrove forest. This extensification or expansion process has been facilitated by the national government through various support programs. Another important factor affecting the...
The paper is the first attempt to explore the ecological and economic impacts of genetic interaction between farmed and wild salmon over generations. An age- and stage-structured bioeconomic model is developed. The biological part of the model includes age-specific life history traits such as survival rate, fecundity, spawning success for...
Australia’s western rock lobster fishery is its most valuable and hence from a biological perspective most tightly managed major commercial fishery, yet it has been beset by problems of miniscule recruitment over the past 3 years. This coming year 2010-11 is little better. It was the joint first Marine Stewardship...
Yearly revisions of Total Allowable Catch under EU policies for the management of North Sea fisheries come at
high management costs and capital adjustment costs. It is unclear whether current EU fisheries policy strikes the
right balance between the need to regularly adjust fish quota to new information on one...
The case for assigning private property rights in fisheries has been
thoroughly studied but has lead to a new debate over whether rights should
be allocated to groups or individuals. The New England groundfish fishery
provides a rich context in which to study this question. Beginning in 2004,
several dozen...
Mediterranean fisheries are characterized by a high diversity of fishing
strategies that can be differentiated according to a gradient from the coast
to the offshore area. Over the gradient, fleets interact through the resource.
The paper first provides a description of the fishing strategies and proposes
a typology for the...
The ecosystem approach to fisheries (EAF) challenges the sustainable
management of resources at an ecosystem level facing human well-being
and environmental health. Here we describe how economic analyses may
fill important knowledge gaps for such a challenge when regarding a
broader multispecies context, e.g. tracking signals of change in ecosystem...
It is implicitly several economists point out that there is a relation between
remuneration system and the economic performance. However, in my
knowledge, none of them examines how these payments affect on the
economic performance of fisheries. This study is an empirical study
analyses the impact of remuneration system on...
The aquaculture industry in the UK has experienced substantial growth in
the past two decades. The productivity and competitiveness of the sector to
a great extent depends on the favourable health status that the sector enjoys
relative to other major salmon producing countries in Europe. Currently the
UK is subject...
Commercial fishing is a dangerous occupation, and accidents are bound to
happen given the operational environment within which fishing is
conducted. Fishery regulations have been shown or presumed to affect
vessel safety. NOAA Fisheries is promoting the adoption of catch share
based fishery management programs nation-wide as one way to...
Long-term, naturally occurring cycles can cause significant shifts in marine
ecosystems referred to as regime shifts. While the new regime can be as
diverse and ecologically acceptable as that which it replaced, individual
species may completely disappear or be greatly depressed when a regime
shift occurs. In this work we...
There are many fishing landing areas in southern Iran, distributed all along the northern Persian
Gulf. Despite increasing effort, the total catch has fluctuated in recent years. Iran is facing with
over capacity of vessels and too many fishers, yet simultaneously political, social and
economical pressures exist for expansion of...
According to nutrition based indicators, 50% of Indias population is
estimated to be below poverty line with inadequate nutritional intake.
Though majority of Indian population derives its nutritional requirement
from plant sources, there is a need to include animal proteins according to
nutritionists. In India, animal protein costs much more...
This paper develops a count data model of target species and bycatch
production for an arbitrary number of species that handles correlation
between species and over time. The model is applied to a large observer
dataset for fishing trips taken from 1990 to 2008 for roughly 150 vessels
participating in...
Price instruments are rarely seen in fisheries despite their many desirable
properties. In this paper, I find new reasons to favor price instruments in a
fishery. Given constraints on information and enforcement precluding the
optimum optimorum, I consider a second-best but welfare improving
policy when catch limits cannot be enforced...
In other to implement the ecosystems approach to take care of fisheries and
their surrounding environment, multidisciplinary indicators are need. One
of these indicators, which may be useful to measure the health of an
ecosystem, is biodiversity. Thus, firstly this paper deals with defining,
measuring and comparing alternative biodiversity index...
Increased demands on our coastal ecosystems, due to increased
development, over-fishing and population growth are threatening many
environmental goods and the amenities associated with these well
functioning ecosystems. Few to no markets exist for ecosystem services,
such as those provided by healthy sea grass beds or water quality benefits
associated...
This paper examines the relationship between U.S. aquaculturists‟ intended actions to expand production capacity abroad and the factors influencing their choices. These factors include aquaculturists‟ perceptions of market conditions; regulatory climate; property rights; government leadership; and the comparative advantages of U.S. aquaculture, as well as the demographic characteristics of aquaculturists...
Marine conservation measures such as moratoriums challenge the economics of fisheries. Efficiency of moratoriums depends on the acceptation by fisheries of such conservation measures. If the measure is unaccepted by fisheries the moratorium is not respected which leads the stock to extinction. The purpose of this article is to identify...
Establishing an effective management of former open access fisheries can
increase resource rents from close to zero to numbers as high as several
hundred Mio $ p.a., as it has been the the case in Iceland's cod fishery.
Whenever the corresponding harvesting rights are given out free of charge
as...
The 2002 World Summit on Sustainable Development saw governments
around the world undertake to maintain or restore stocks to levels that can
produce the maximum sustainable yield with the aim of achieving these
goals for depleted stocks on an urgent basis and where possible not later
than 2015. However, progress...
Commodity chains for canned tuna are global, with fishing grounds in all the oceans, processing centers
on every continent and end markets equally widespread. A tuna caught by a Taiwanese vessel in the
exclusive economic zone of Kiribati in the Pacific may be transported to a cannery in Thailand by...
In the quest to limit the bycatch of non-target species, marine protected
areas (MPAs) have been frequently utilized. MPAs are popular with
ecologists and fishery managers because of their relative ease of
administration, habitat protection benefits, and the widespread acceptance
of MPAs as an instrument of choice for the ecosystem...
This paper examines the impact of community based fish culture in
seasonal floodplains on fish production, consumption, income and food
security of the participating households in Bangladesh. About 30 percent
households of the three project and control floodplains were randomly
selected, from whom data were collected using longitudinal surveys on...
Shellfish farmers make their production decisions in an environment characterized by multiple
uncertainty. As shellfish farming is done in an open area, producers face a large number of risks:
e.g. biological, environmental, pollution or climatic risks. Historically, this sector has been
affected by several crisis; the last ones were the...
The profitability of the Mediterranean mussel (Mytilus galloprovincialis) farming depends on a combination of factors including natural productivity, technical practices, production costs and product pricing. In an effort to analyse the financial risks of the mussel farming in Greece, we examined the profitability of the different farm sizes (1 to...
The need for management of the marine ecosystem using a broad perspective has been recommended under a variety of names. This paper uses the term Ecosystem Management, which is seen as a convergence between the ecological idea of an organisational hierarchy and the idea of strategic planning with a planning...
Fish is an important source of protein for the middle-class and elites across Nigeria. The handling, processing, and marketing of fish products are essential complementary functions of all food production systems. Additionally, the fish trade offers substantial employment opportunities in many coastal and inland areas where fish is caught. The...
Two economic base analysis techniques that identify and measure
commercial fishery dependency at the local level are compared. The most
common method, the location quotient technique, uses direct metrics of
economic activity (sales, employment, wages, or value-added) to compare
a local economy with a reference economy. We compared this technique...
Aquaculture activity as an enterprise is fast spreading in Malaysia partly
due to the government initiation and support as reflected in the 9th
Malaysia Plan. In addition to the support of national policy the availability
and viability of new technologies are being analyzed and introduced to the
industry. New species...
Much of fish consumed by the poor are caught by household members and
traded in local markets. These fish trades are rarely or poorly included in
national statistics, and it is therefore difficult to estimate precisely the real
contribution of fish to food and nutrition security. The WorldFish Center
recently...
Adoption of aquaculture, particularly among the rural poor, requires timely
and quality seed at the farmer level. In areas of Northwest Bangladesh, the
region considered most marginalised for food production, carp polyculture
has been improved through the introduction of Nile tilapia, but constrained
by under-developed seed supply. In order to...
A group of 75 children from 3 to 5 years old from the earliest stages of a Spanish school were the target
of an experimental test focused on the consequences of providing information about safety and fisheries
sustainability on their preferences when choosing between different seafood presentations and labels.
Both...
The last fifteen years have seen increased reference to and adoption of comanagement
in fisheries in Southern Africa, usually as a conditionality for
(national or international) development aid in the sector. Co-management is
supposed to improve the proficiency and efficiency of fisheries
management through decentralization and democratization of decisionmaking,
which...
A concern for the consequences of bycatch and discards in fisheries has led to the implementation of
new policies and fisheries management plans aimed at their reduction in many fisheries around the
world. Such plans have been developed for the Australian Commonwealth fisheries (the most recent
bycatch action plan extends...
More than half of the worlds annual marine fish catch are landed by small
scale fisheries. However, most small-scale fisheries have not been routinely
or comprehensively managed. Understanding the social and economic
characteristics of small scale fisheries is the first step towards enhancing
their management and governance. To this end,...
There has been significant growth in the catches of bluefin tuna in the Atlantic Ocean and especially in the
Mediterranean Sea for the last decade due to the expansion of fattening farms which export their production to
Japan. There has been an increase in catches due to strong demand and,...
In his report the economics of
ecosystems and biodiversity, P. Sukhdev compared the valuation of
ecosystem services and biodiversity to a compass which helps decision
makers to engage in the conservation of environment and against the loss
of biodiversity. Following this road, the authors present the results of an
economic...
The fishery sector is important in Nigeria’s development matrix. The sector not only
provides employment for the citizens but also contributes more than 40% of animal protein consumed by average Nigerian. However, over the years the role of providing animal protein for the populace dwindled to the extent that fish...
Bycatch is a nearly universal problem for fisheries, and it is becoming
increasingly common to place strict limits on allowable bycatch, either on
individuals or as a cap on an industry sector s bycatch. Individual bycatch
quotas strengthen individual incentives to avoid bycatch and may reduce
the likelihood that the...
Considerable financial and political investments in fisheries comanagement
in the past 20 years have disseminated the concept across the
developed and developing world. Co-management is now established as a
mainstream approach to small-scale fisheries governance. This paper
reports on a meta-analysis to assess the overall impact of fisheries comanagement
in...
In the northwestern Pacific area, the fish alternation phenomena amongst sardine, anchovy and chub
mackerel have been observed in the cycle of about fifty years. The sardine biomass has been drastically
increased in 1930s and 1980s. Chub mackerel biomass has in 1970s, and anchovy has in 1960s and 1990s.
It...
Though the basic purpose of MPAs is marine ecosystem conservation, the
question of their influence on the local economy is often critical since it
governs their social acceptability. This paper addresses the problem of
measuring the consequences of creating a marine protected area (MPA) on
recreational extractive and non-extractive uses...
Fisheries exploitation at a large scale in the South Atlantic is recent.
Fisheries have experienced an extraordinary growth in the last 15 years. In
Argentina the growth of fisheries exploitation took place at unprecedented
rates, and this has been one of Argentina's most dynamic economic sectors
in recent times. It...
I begin my talk by identifying the fish species that inhabit the California
Current Large Marine ecosystem (CCLME). Next, I categorize these
species into predator-prey and forage and non-forage fishes. I then present
the current catches, landed values, payment to labour (wages), capital
(profit) and payment to the resource owners...
The Maine lobster fishery is one of the most valuable fisheries in the US,
but the economic performance of the fishery has been poor and worsening
as costs of fuel and bait increase while ex-vessel prices decline. Landing
are heavily concentrated in the fall when quality is low, requiring the...
Fish is the cheapest animal protein source in Nigeria and dry fish, in particular, has the potential to solve the pervasive protein shortage problem owing to its relative affordability compared with fresh fish. Boosting dry fish consumption will entail retail price reduction which is achievable only if the market for...
The West Coast Demersal fishery in Western Australia includes some
highly prized recreational fish: dhufish, pink snapper and baldchin groper.
Following a recent assessment that found these stocks are under threat from
overfishing, a range of new regulations designed to restrict effort have been
introduced with the objective to facilitate...
In the standard economic approach to optimal allocation, aggregate
economic benefit is maximised where the sustainable harvest is allocated
so that marginal net benefits are equal. The model assumes a known
sustainable harvest. It also assumes optimal intrasectoral allocation in each
sector. The Western Australian West Coast demersal fishery, like...
The National Park Veracruz Reef System was declared a marine protected area by the Mexican government in 1992. It contains 23 reefs presenting different degrees of environmental deterioration mainly due to the influence from nearby rivers, its proximity to the port city of Veracruz-Boca del Río and the currents patterns....
Ecosystems are one of the most productive fishing grounds in the world, with important commercial and valuable fish stocks. However, overfishing, IUU activities, discards, habitat destruction and alteration of the biogeochemical conditions of the ecosystem combined with an increase in fish demand continue to drive fisheries to an alarming situation....
When fishers can avoid detection and/or sanctions for violating fisheries management rules, the fisheries enforcement problem becomes substantially more complicated. A number of issues immediately pop up. First, the effectiveness of enforcement effort is reduced. This, ceteris paribus, reduces the optimal enforcement effort. Second, the impact on the fishery of...
The present paper studied system viability of tilapia nilotica and Australian redclaw crayfish in
polyculture, considering tialpia as main species. Three scenarios were analyzed: tilapia monoculture with
38.7 fish/m3 and tilapia and Australian redclaw polyculture, considering the same stocking density for
fish in monoculture and 17.5 crustaceans/m2, of which one...
The World Bank has fostered introduction of an individual quota
management system in the world's largest fishery based on both economic
and social studies. The implementation of the quota legislation has
uncovered a range of issues which were largely foreseen but fall outside the
remit of the fisheries authorities. The...
Mussel farming as an aquaculture activity based on the natural primary productivity, faces risks similar to those of the agriculture sector. Consequently, much theoretical risk research has been applied to aquaculture as in agriculture, livestock, forestry, conservation and its management. Nevertheless, limited studies have so far focused on risk perceptions...
Historical long term changes in stock abundance have been related to
climatic changes, and fish stocks seem to fluctuate over time in relation to
warm and cold periods in ocean waters. Large fluctuations of fish stocks
and long term changes in human harvest of marine resources are well
known from...
Bluefin tuna (BFT) stocks in both the Western and Eastern Atlantic are in
danger of commercial extinction due to over harvest. Years of exceeding
mortality quotas and lack of management action is to blame, as is illegal
fishing in the Eastern Atlantic. The species qualifies for a Convention on
International...
In the light of the usual allegation against shrimp farming as an employment displacing activity, this paper tries to examine the role of shrimp farming in generation of employment and income for small scale shrimp farmers in West Bengal, India using primary data collected from 208 traditional and scientific shrimp...
Aquaculture is increasingly important for the future supply of fish because of steadily increasing demand while supply from fisheries is stagnating. In the EU aquaculture production has grown strongly in some countries, such as Spain and Greece, but was flat at a low level in others, such as in Germany,...
Recent articles in the multidisciplinary fisheries literature have been critical
of fisheries economics concepts and literature. For example, a paper by
Bromley (2009) entitled Abdicating Responsibility: The Deceits of
Fisheries Policy: Fisheries 34(6):280-302, provides a critical review of
fisheries economics. I explore the main issues raised in this paper and...