A scientific knowledge gap exists with regard to how benthic habitat is affected by destructive fishing methods, such as bottom trawling, and how this impacts upon the productivity of commercial fish stocks. This
article addresses analytically the effects of destructive fishing practices of a single gear fishery on a non-renewable...
The Northern Prawn Fishery is one of the most valuable fisheries in Australia with a yearly estimated value of production of about $64mil. Nine prawn species are commercially harvested from the Northern Prawn Fishery with 80% of annual average catch represented by the banana prawn (Fenneropenaeus merguiensis) and the tiger...
This paper investigates the application of cellular automata (CA) models in bioeconomic studies involving varying biological growth and area distribution. A simple 2D continuous cellular automata (CCA) model is presented and incorporated in a fish harvest model based on standard assumptions of economic rational behaviour by individual decision makers. The...
This paper addresses to a comparative approach of long term changes in the characteristics of marine fisheries at a regional scale, in three ecosystems: up-welling, tropical and temperate. The South Moroccan
continental shelf, under the influence of the Canary current, where up-wellings take place, is the most productive part of...
The purpose of this paper is to provide a comparative index characterization of shrimp farms in Bangladesh, India and Indonesia. There has been considerable work carried out on shrimp farming in South East Asia with emphasis on biology, environmental factors, management and trade issues but much less work on the...
Millions of people across the world, and particularly in Asia, depend on small-scale fisheries for a livelihood. Small-scale fisheries contribute in significant ways to employment, income and food security, and in many parts of the world small-scale fisheries constitute the backbone of remote, rural economies. However, several problems, within and...
Five species of marine turtles are found within the territorial waters of Vietnam, and all populations are declining. As part of a broader strategy and Action Plan, the Government of Vietnam and WWF Vietnam have launched a two-year project to: 1) document relative gear impacts, and geographic hotspots , for...
An industry group has proposed a novel mechanism for management of the multispecies groundfish fishery off the northeastern United States. Under this mechanism, individual harvesters would be allocated a budget of points, to be expended landing fish. A regulatory body will set different prices, denominated in points, for landing each...
This study is part of the research program on theme Post Harvest Management Strategy of Supply Chain For Thai Shrimp Products currently supported by the Department of Fisheries (DOF) and Post Harvest Technology Institution (PHT), Chiangmai University (CMU). That focuses on the cost efficiencies of 51 shrimp processing plants under...
Molluscan shellfish culture is an important component of the commercial aquaculture industry in Florida, USA. The primary species cultured is the hard clam, Mercenaria mercenaria. Currently, annual grower revenues total approximately $15 million, which generate $40 million in economic impact to the state. However, hard clam production in other USA...
Because of the stagnation of commercial landings, the development of aquaculture activities is expected to rise during the next decades to match the growing demand for fisheries goods. Overall, it is often expected that the aquaculture sector could reduce to a certain extent the pressure applied over wild stocks. However,...
Economic indicators are needed for future knowledge-based fisheries management in Vietnam. This entails a good data collecting and processing system. This paper contributes to this requirement for the tuna-mackerel gillnet fishery, near-shore and offshore, in Nha Trang, South-Central Vietnam. For 2005 and 2006 fifty vessels were surveyed for technical characteristics,...
The Constitutional imperative in South Africa after 1994 was to build a just and equitable order that would benefit its entire people's after centuries of social and legal privilege benefited ruling minorities. In
1998 new era fisheries legislation aimed to redistribute fishing access rights and reform the sector. The challenge...
The small scale fisheries are generally unknown over the world due to a crucial lack of data, and particularly costs and earnings data. This is also true for the European fisheries while vessels less than 12 meters represent almost 75% of the total European fleet. Faced to the increasing price...
While indicators and assessment frameworks are being developed for ecosystems, and tools for determining the economic status of a fishery are readily available, integrated assessment tools are still mostly lacking. However, the development of an ecosystem approach to fisheries management requires the monitoring and assessment of exploited ecosystems in all...
More than half a million small fishers in the Philippines have been availing of loans from Quedancor, the credit arm of the Department of Agriculture. The financing scheme has been quite successful with repayment rate at 95%. However, the occurrence of natural calamities such as typhoons; as well as pests...
The study examined marketing of smoked fish in Ondo State, Nigeria. It specifically examined socio-economic characteristics of the respondents, determined the profitability of smoked fish marketing and examined the market structure for smoked fish in the study area. A multistage sampling technique was used to select 84 smoked fish marketers...
The rapid growth in aquaculture production over the last three decades has been one of the fruits of globalisation, as tropical countries have exploited their comparative advantage in the production of high value crops like penaeid shrimp. However, aquaculture is heavily concentrated in coastal areas and it has generated important...
The swordfish fishery is one of Hawaii's most lucrative, and also most highly regulated, fisheries. According to the United Fishing Agency (UFA) fish auction data in 2005, average swordfish (shallow-set)
revenue per trip was $76,897.03 and average tuna (deep-set) revenue per trip was $36,382.14. Swordfish trips, however, comprised of only...
In this paper we develop an index of economic vulnerability which we use conjointly with a more
conventional measure of income poverty to explore the different dimensions of poverty (transient, chronic, vulnerability) that affect fishing communities in developing countries. We illustrate the potential uses of this method with cross-sectoral data...
We present a scenario-model for the joint Norwegian and Russian managed capelin and cod stocks in the Barents Sea. The model basically consists of two sub models. The first is an autonomous management model which, based on profit functions and growth functions with coefficients calibrated from real data, finds a...
The lack of selectivity in many fisheries may lead to discards and bycatch. Discards of under-sized or non-commercial species/individuals represent damage to the eco-system, an additional source of overfishing and a waste of resources. Bycatch may increase fishing pressure on species targeted by other fishermen. The purpose of the paper...
The red king crab (Paralithodes camtschaticus) is an alien invasive species in the Barents Sea representing a value as well as a potential pest. A bio-economic model is applied analysing the costs that traditional fisheries incur as a result of the king crab invasion, as well as the income from...
The Ganga, one of the most important rivers of India, is considered as heaven for rich biodiversity of fisheries and economically rewarding aquatic species. An investigation looked into ecology and habitat degradation of fisheries affecting biodiversity. It has been found that more than 35 fish species commonly available in river...
Balanced feed represents approximately 60 % of production costs in fish culture and ration size has significant effects on this parameter. Ration size varies according to culture strategies and producer knowledge. It can also have environmental implications since feed can be a pollutant. A bioeconomic model was developed for an...
This paper deals with the control of an invasive species, void of market value, and acting as a space competitor for a native valuable harvested species. The paper presents a theoretical bioeconomic model describing the interacting dynamics of the two stocks. In the model, control variables are the levels of...
Recent reports of fishery collapse paint a gloomy picture of the ocean's future; perhaps 100% of fisheries from the world's large marine ecosystems (LMEs) will be collapsed in just 40 years. While poor fisheries governance is now widely regarded as the cause, bioeconomic theory and anecdotal evidence suggest that rights-based...
Since MSC certification of the Gulf of Alaska and Bering Sea pollock fisheries in the U.S., anecdotal evidence suggests that products from these fisheries have benefited in the marketplace relative to products
from the Russian pollock fishery. In particular, a testable hypothesis is that certified U.S. pollock has achieved a...
According to the UN's Food and agicultural organisation (FAO, managing fishing capacity is a core elemnt to aceive sustainable fisheries. Here, FAO highlight the long term need to avoid unprofitable overcapacity; an adaptation which increase the pressure on fish resources, fisheres are marginalized economically, allocation conflicts among fishermen and high...
The expansion of fishing capacity is one of the most pressing problems facing many fisheries around the world. Excess capacity arises when a high number of vessels enter the fishery, and these vessels are
employed to exploit the available fish stocks beyond a target level of yield. The lack or...
This paper addresses the impacts of climate change on salmon fishery governance in the Columbia River Basin of the Pacific Northwest U.S. Here the physical and ecological effects of climate change are expected to be significant and to include alterations in freshwater and marine aquatic habitat that will affect the...
There is an increasing realisation that the earth’s marine environment is being adversely impacted by the
production of carbon dioxide in the earth’s atmosphere. Climate change in the oceans and atmosphere will
impact fisheries production and management and have implications for governance of fish stocks. Climate
change may have substantial...
Ragay Gulf is one of the 19 critical waters of the Philippines where a socioeconomic assessment was conducted in the Fisheries Resources Management Program of the Bureau of Fisheries and Aquatic Resources
with support from the Asian Development Bank and Japan Bank for International Cooperation. Public participation and involvement was...
In this paper, we review our experiences in combining cross disciplinary, probabilistic information by Bayesian networks. They seem to be potential tools in combining the optimization orientated economic
modeling tradition to the somewhat different traditions of sociological sciences and further to the empirically orientated biological approaches. Calculus is based on...
The paper gives a brief summary of Indonesia's Coral Reef Rehabilitation and Management Program (COREMAP) targets and progress as of midterm of this 18 year (1998 - 2015), three Phase program. The total program cost is USD 250 million. The paper highlights COREMAP's approach to the conservation and management of...
The fishery sector, including capture, aquaculture, processing and suportive services, plays an important role to the whole economy of Vietnam. Total aquatic production of the country increased about 3 times after 15 years, from 1.02 million tones in 1990 to 3.43 million tones in 2005. The growth of aquaculture production...
After decades of decline, real salmon prices paid to California fishermen have rebounded in the past few years. This recent price recovery is probably due in part to reduced availability of fresh salmon in local
markets, but anecdotal evidence suggests increased product differentiation by consumers is also an important part...
Changes in consumer preferences have created an opportunity for developing differentiated and higher valued seafood products. Providing consumers with more information about seafood products at the time of purchase has been suggested as a way of differentiating seafood and promoting healthy fisheries. A discrete choice experiment conducted at high-end grocery...
This study was conducted to assess the economic consequences gained from disease-affected extensive shrimp farming by three major farm ownerships: individual, group and outside respectively. Key data for cost and returns were collected using a questionnaire survey between June and August 2002 from southwest Bangladesh. Profitability of operations was affected...
Recently the ecosystem based management have been dealt with in management as a useful approach for fisheries. The goal of ecosystem-based management are sustainable management of fisheries and other marine resource through establishment of well-managed network of marine protected areas. Despite a number of benefits from marine reserve such as...
This paper investigates whether policy and governance reforms for transforming the Squid industry, especially those related to redistribution of fishing rights and improved conditions of employment, have impacted positively on the crewmembers. Governance has two key elements; firstly, in the absence of government or lack of capacity to enforce legislation...
Gujarat, a major maritime state has been bestowed with both inland and marine fishery resources. It has 20 percent coastline. 10 per cent of EEZ, in marine fishery and 82 river system, 2.87 lakh hectare of reservoirs, 0.71 lakh hectare of pond and tanks and 3.76 lakh hectare of brackish...
I will discuss the current state of IUU fishing in Africa as reported in the literature. I will discuss the scope of this illegal activity in the continent and the economic and socila loss to the continent due to IUU fishing.
In southeast Portugal, some coastal fishing communities have experienced intensified competition for harvestable stocks, and this impacted with some severity on small-scale fishermen who are especially dependent on fishing for their livelihoods. In the last decade or so, various "structural instruments" have been created in order to address this particular...
Fisheries in Vietnam has rapidly been developed from 1980x of last century. From total 600,000 T, the production has been increased up to 4,200,000 T in 2007 and particularly growth has been done in export
and processing, from USD 11.2 in millions in 1980, export value has been increased to...
Gujarat, a major maritime state, has 20 percent coastline and accounts for 10 per cent of fish production of India. Recently, the government of Gujarat has placed a special emphasis on the development of ports with an objective to explore the opportunities of trade through the ports. The government plans...
Fishing activities within the Galapagos Marine Reserve (GMR) are restricted to small-scale levels by national law. The fishing sector has relied on just two fisheries, sea cucumber and spiny lobster, and a
strong Asian export market. Despite a series of input and output controls and a co-management scheme, stocks have...
The cod stock in the North Sea is threatened by overexploitation. To recover this fishing stock, pressure needs to be reduced. This implies that catch compositions with small amounts of cod are preferred by public policy makers. The present analysis assesses the technological efficiency of fishing trips, considering landings of...
In several countries, cost recovery and/or rent collection (CRRC) has become integral to fishery management. This paper will examine CRRC from three perspectives: neo-classical economic efficiency, equity, and public choice. Partial equilibrium economic efficiency arguments include incentives for industry to implement (or lobby for) efficient delivery of management services. On...
Fishing involves the act of hunting for fish by hooking or trapping and may also include pursuing other aquatic animals by extension. However, modern fishing is both a recreational and professional sport in communities with natural and man-made water bodies. Recreational fishing involves fishing for pleasure or recreation and it...
In industries that are characterized by frequent innovations and high productivity growth, substantial variation in both produced quantity and input use may occur and lead to increased cost. As both excessive input use and misallocation of inputs are costly for the producer, firm-specific measures of both technical and allocative inefficiency...
Are Marine Protected Areas positive for adjacent fisheries? This is a study of the technical efficiency of small-scale trawlers in Nha Trang, Vietnam following establishment of Nha Trang Bay Marine Protected Area (NTB-MPA) that imposed a trawl ban to protect marine biodiversity and regenerate fish stocks. Data were collected through...
Most efforts of Nigerian governments to fight unemployment and poverty among the educated youths have not succeeded because most agricultural programmes initiated by past governments did not go down well with the youths due to drudgery, large capital outlay and low returns to resources associated with food crop and livestock...
Salmon aquaculture generates good output (i.e. salmon) and bad output (e.g., pollution). A joint production function approach is applied to model both outputs simultaneously. Two environmental production
technologies are proposed, namely, regulated and unregulated technologies. Two production function models with different mapping rules in the analysis are used. Pollution abatement...
Different types of wild dolphin excursions, particularly those that are in close proximity to dolphins may impact them in various degrees. This study investigated the supply and demand of different types of wild dolphin excursions in Hawaii. Using conjoint analysis, this study examined tourist/consumer's willingness to pay (WTP) for wild...
At first, a paper which explores "wellbeing" in fisheries might seem misplaced. Our attention is more often focused on the poverty with which fisheries are so inherently associated and the threat of growing poverty as fishers, worldwide, face depleted fish stocks and a rapidly changing coastal environment. As this panel,...
Low yields caused by viral diseases and their financial consequences are the most important risks jeopardizing commercial shrimp culture in Mexico. Hence, farmers are continuously testing different production strategies to keep their operations into profitable margins. An optimization model was designed based on a farm's (139 ha) database (2001-2005) to...
Namibia's aquaculture Industry is comparatively young but of recent it has picked up momentum. Previously, its importance was neglected. This was not just due to the then thriving marine resources, but also to inexperience in fish farming and fish consumption culture in most inland Namibians. According to Namibia's Vision 2030,...
Bangladesh possesses a wide range of water bodies such as, freshwater marshes, reservoirs, lakes, natural depressions, rivers and estuaries that offer an extensive inland fishery. Apart from several hundred thousands of full time fishers, an estimated 10.60 million rural households (73%) currently take part in fishing activities in these water...
It is often claimed that rural households, especially the poor, rely on natural resources to cope with risks. What is less understood is its extent and whether harvesting natural resources is a strategy to cope
with particular types of risks. To investigate this question, this paper utilizes survey data of...
Reviewing traditional micro bio-economic models and the recently developed fisheries computable general equilibrium model, This research explores the possibility of constructing a disequilibrium framework in which fisheries are considered in a more realistic and convincing way based on evolutionary economic theory. The disequilibrium framework deals with heterogeneous fish producers and...
Age and size at maturity are key life-history traits in a fish stock. At the individual level, age and size at maturity affect fecundity, growth and survival. At the population level these factors interact to affect the age and size distribution, the population dynamics and the productivity of the stock....
The Mesoamerican Barrier Reef System has considerably changed after a series of natural disturbances, especially hurricanes and extreme coral bleaching, and is further impacted by anthropogenic threats. Located at a tri-national border between Belize, Guatemala and Honduras, the Sapodilla Cayes Range is specifically impacted by tourism, commercial fishing and other...
Being a country located in the west of BIEN DONG (the South China Sea) with more than 3,260 km of shore line, about 3,000 large and small islands, more than 100 estuaries and about one million km 2 of EEZ, Vietnam is considered as a country in rich of marine...
Like many global pelagic fisheries, the Hawaii-based longline fishery continues to face increased pressure to reduce the incidental catch of endangered sea turtles and/or other sensitive species. Aggregation and
movement of both sea turtles and fish are directly associated with climatic variations and oceanographic conditions. As a result, both targeted...
The implementation of Convention on the Conservation and Management of Highly Migratory Fish Stocks in the Western and Central Pacific Ocean provides all stakeholders an opportunity to implement a comprehensive management regime that incorporates all tuna stocks and all fishing activity using ecological sustainable
development principles and best practice fisheries...
It is well known that fishing activities may affect the structure of aquatic habitats and consequently determine the diversity, composition and productivity of the associated biota. The direct effect of fishing
activities is on the habitat structure and the indirect effects occur when the fishing activity initiates shifts in the...
A key element in evaluating fishery management strategies is to examine their effects on the economic performance of fishery participants, yet nearly all empirical studies of fisheries focus on fishing as opposed to processing. However, the economic benefits derived from fish stocks are largely determined by the revenue generated from...
This paper examines the effects of a share-based management program in the Central Gulf of Alaska rockfish fishery. The program provides exclusive allocations to cooperatives of nine species, including one species for which retention is prohibited. Under the program, allocations of all species are required to fish and all catch,...
This session proposes to review and critically discuss the potential for conceptual approaches addressing human and economic development in the context of the fisheries sector. Recent research, informed by a wide range of frameworks in development studies, is greatly increasing our understanding of the lives and livelihoods of fishing people...
Developing country fisheries serve many functions, from feeding the poor, sustaining local communities and providing employment to generating export earnings. Yet, despite their importance, most countries have largely failed to ensure sustainable fishery systems and livelihoods for the millions of people dependent on them. Classically, management has concentrated on the...
Trends in key fisheries indicators are presented to provide the context for a profile of the economic health of the world's marine fisheries. Estimates of the economic value of global marine fishery production and costs of production are used as inputs to an economic model to derive a range of...
The European Union ranks third worldwide in terms of fishing power, with 5.7 million tonnes landed in 2006 and a fishing fleet active in every ocean. It is also the leading importer of fish (worth some ¬20 billion in 2006). That is why the European Commission considers that the European...
A model for studying how destructive fishing practices may affect commercial fish stocks through their effect on habitat is presented. It may be used both for renewable habitat-types, like eelgrass (Zostra marina) or sponges, and also practically non-renewable habitats like corals. The model demonstrates the trade-offs between using destructive and...
As climate change awareness grows, embedded carbon has become an issue for affluent first world seafood consumers concerned with environmental sustainability. Diminishing wild fish stocks and rising fuel costs mean capture fisheries are becoming less attractive sources of product for seafood marketers with investment in brands. In the light of...
The interpretation of the neoclassical model of dynamic labor supply is straight forward. A rational agent exposed to a temporary increase (reduction) in wages will respond by increasing (reducing) working hours. However, empirically such behavior has been hard to confirm. Most income increases are not temporary; hence a substantial income...
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Inland capture fisheries in the Mekong Delta play an important role in terms of food security and employment. Fish and other aquatic animals together with rice are important components in their local people's diet and many people participate in fishing mainly for household consumption. Mekong Delta is one of the...
Whilst the study of resource extraction under uncertainty has a long history in resource economics, there has been less attention paid to endogenous efforts to reduce uncertainty through learning and information acquisition. An unresolved empirical question is the degree to which individual extractors learn from the behavior of other extractors....
This paper reports on the first comprehensive study of economic and livelihood considerations relating to inland fisheries in common property lands (ejidos) of the Mayan Zone in Quintana Roo, Mexico. Given the data-sparse nature of these fisheries, a fishery assessment approach was used which linked methods from both the natural...
This paper makes an attempt to examine the emergence of international trade in seafood and its impacts on the fisheries and fishing communities in India. It suggests some measures and strategies to maximize the benefits through sustainable fisheries development. Seafood is one of the leading non-traditional exports identified by the...
This presentation provides an introduction to the FAO-World Bank Rent Drain Study. The objective of the study is to present the story of the world's depleted and overexploited marine fisheries in economic terms.
The study develops an economic justification at the global level for restoring the health of fish stocks....
This paper deals with capital mobility for artisanal vessels (of less than 24 meters in length) and with its structural adaptation, considering long-term changes in marine fish communities, using the Bay of Biscay
fisheries as a case study. Long term changes are related to the impacts of fishing, to changes...
The paper develops a model of world frozen shrimp market using data from 1980 to 2004. There is a structural change in the world shrimp market that shifts the market volume from traditional to the non-traditional markets. Market structural change affects shrimp price significantly. Shrimp price has a trend and...
Increasingly fishery managers are expected to take an ecosystem approach to fisheries management that accounts for the interrelationships of target species as well as non-target species and habitat. Fishery managers would benefit from coupled ecological-economic models that includes both the human and ecological aspects of the fishery and incorporates them...
One of the most significant obstacles in the implementation of marine protected areas (MPA's) in developing countries is the development of alternative livelihood strategies for local people affected by a new MPA.
This presentation will discuss results from livelihoods interventions around one marine protected area case study in Vietnam, the...
Aquaculture in Vietnam has a long tradition. So far, this industry has been dominated by fresh water and brackish water aquaculture. Cage culture in marine waters has been developed more recently. With a coastline of 3260 km and an Exclusive Economic Zone (EEZ) of more than one million square km,...
Louisiana accounts for more than 90% of U.S. production of crawfish. While the majority of the product is sold live for crawfish boils, approximately 15%-30% of the domestic output has historically been processed for the tail meat. As a result of increasing competion from China, Lousiana processors filed an antidumping...