Index Catalog // ScholarsArchive@OSU

Un Etat moderne signifie-t-il une pêche moderne? l'exemple de la Martinique

Creator:: Failler, Pierre
Abstract:: La pêcherie martiniquaise se trouve aujourd'hui dans une situation paradoxale : d'un côte elle se veut résolument moderne de par 1) les embarcations et des outils de production de plus en plus sophistiqués (coques rapides sur-motorisées, GPS, etc.) que les pêcheurs acquièrent a grands frais; de l'autre, elle reste séculaire...
Resource Type:: Research Paper
Full Text:: Un Etat moderne signifie-t-il une pêche moderne? l'exemple

La pêche Comorienne : Existe-t-il des formes de développement qui permettent un développement évolutif et durable du secteur?

Creator:: Helene, Rey, d'Artigues, Marie, and et Sweenarain, Soobaschand
Abstract:: Après avoir succinctement présenté l'évolution récente et la situation actuelle de la pêche comorienne, on tentera de s'interroger sur les principes autour desquels on peut promouvoir un développement du secteur halieutique, qui dépasse la juxtaposition ou la succession des projets de développement. Pour des sociétés littorales qui, malgré le contexte...
Resource Type:: Research Paper
Full Text:: La pêche Comorienne : Existe-t-il des formes de

The death rattle of open access and the advent of property rights regimes in fisheries

Creator:: Christy, Francis T.
Abstract:: In considering fisheries regulation in the next decade, I make a concluding point that may become a major theme. This is that individual permanent catch quotas of a regulator-determined TAC are only a stage in the development of management from licensing to private rights (Scott 1989). The condition of open...
Resource Type:: Research Paper
Full Text:: advent of property rights regimes in fisheries FRANCIS T.CHRISTY IMARIBA Francis T. Chrisly is

The Political Economy of Tuna Exploitation in the Western Indian Ocean - Geopolitics and Resource Management

Creator:: Barnes, Colin T. and Ansell, Neil
Abstract:: This paper is based on work that the authors have carried out on EU financed projects in the South Western Indian Ocean (SWIO) in collaboration with the Indian Ocean Tuna Commission and the Indian Ocean Commission (IOC)¹ on a range of fisheries management issue including, stock assessment, tagging and monitoring,...
Resource Type:: Research Paper
Full Text:: RESOURCE MANAGEMENT Dr. Colin T. Barnes, Marine Resources Assessment Group/Cambridge Resource Economics

Prospect of Pelagic Fisheries in Northern Sulawesi, Indonesia

Creator:: Farris B., Boneka and Lasut, Markus T.
Abstract:: Approximately 90 per cent of total catches in northern Sulawesi are pelagic fishes. About two-third of them are large pelagic fish, such as tunas (Katsuwonus, Thunnus, Euthynnus). However the National Assessment Stock Commission reported that availability of the large pelagic fishes in Sulawesi and Maluku Sea is just about one-third...
Resource Type:: Research Paper
Full Text:: . Boneka & Markus T. Lasut Marine Biological Laboratory, Faculty of Fishery and Marine Science, Sam

Comparative Yield Performance of Upland and Mangrove Aquacultural Farms in Selected Maritime States of Southwest, Nigeria

Creator:: Mafimisebi, T. E. and Okunmadewa, F. Y.
Abstract:: Investors in aquaculture are biased against the mangrove areas and prefer to site their farms in the upland parts of Southwest, Nigeria. This study was carried out to compare the yield performance in the two fish farm locations. The tools utilized included descriptive statistics, budgetary and cash flow analyses and...
Resource Type:: Research Paper
Full Text:: : ( ) ( )∑ ∑ = = + + = n t n n t n r Ct r Bt CB 1 1 1 1/ where Bt = benefit in each project year Ct = cost

Are Middlemen Really Exploitative? Empirical Evidence from the Sun-Dried Fish Market in Southwest, Nigeria

Creator:: Mafimisebi, T. E. and Okunmadewa, F. Y.
Abstract:: The animal protein intake in Nigeria is grossly insufficient yet the retail price of fish is rising. Market intermediaries, alleged to charge excessive and unjustifiable marketing margins (MM), are often blamed for this. This study examines this allegation using data from 225 sun-dried fish traders classified into three groups. Data...
Resource Type:: Research Paper
Full Text:: . and J. Kent, 2001, Food and Hunger in Sub-Saharan Africa. The Environmentalist, 21: 41-69. Kluwer

The Evolution of Philippine Fishery Policies and Issues for Developing Export Markets Under a Global Trading Environment

Creator:: Costales, Achilles C. and Garcia, Yolanda T.
Resource Type:: Research Paper
Full Text:: T. Garcia 1. Introduction In the realm of international trade in agricultural commodities, the

Evolution of Profitability and Fisher Attitudes 1990 - 2000 in the Irish Sea, - an Overfished Fishery

Creator:: Hillis, J. P.
Abstract:: The Irish Sea, being an area fairly discrete and partially isolated from adjoining fishing grounds, lends itself well to research studies. The area is fished by Ireland and the United Kingdom, with limited effort by France and Belgium, and has been known to be overfished for quite a long time....
Resource Type:: Research Paper
Full Text:: s t i m a t e d To t a l s % Change A B C A B C YEAR 1991 1991, Real 2000 (C-A) (C-B

Inefficient Decisions, Emergencies and the Benefits of Delegated Power: Measuring Commission Power in EC Fisheries Policy-Making

Creator:: Rahming, Anne J.
Abstract:: The failure of the European Union’s Common Fisheries Policy (CFP) to develop a sustainable fishing environment for all member states is often blamed on the incompatibility of the territorial logic of national interests and the market forces of a de-territorialized European Union. Ironically, it is precisely this incompatibility that a...
Resource Type:: Research Paper
Full Text:: Benefits of Delegated Power: Measuring Commission Power in EC Fisheries Policy-Making Anne J. Rahming

Economics of small-holder fish farming in Africa. A case study from Malawi

Creator:: Steward, J. Alan
Abstract:: The global aquaculture industry has seen dramatic growth over the last two decades, and is forecast to become increasingly important into the next century. The aquaculture output, of the African continent, however, remains low at about 4% of the total. There is a perception of failure where donor assisted projects...
Resource Type:: Research Paper
Full Text:: case study from Malawi J. Alan Stewart Institute of Aquaculture, University of Stirling

A Feasibility Analysis of Implementing the Closed Fishing Seasons on the North-east Coastal Fisheries in Taiwan -- An Application of Fisheries Co-management

Creator:: Hao-Ting, Liu, Chuang, C. T., Lee, Y. H., and Chang, C. W.
Abstract:: The status of fisheries resources on coastal and offshore areas is getting worse in Taiwan. Thus, to establish a fishery resources management system has become the main task among stakeholders. In this study, we would like to examine the feasibility of imposing the community-based co-management system and setting closed fishing...
Resource Type:: Research Paper
Full Text:: analysis” Marine Policy, vol.20, pp. 405-418 Nielsen, J. R. and T. Vedsmand (1997), “Fishermen’s

Analysis of Economic Effects of Eco-Tourism on Wang-An Island: A Case Study of Green Turtle Protected Area in Pescadores

Creator:: Hsu, Chiung-Hsin, Chuang, Ching-Ta, and Chen, George C. T.
Abstract:: With the expansion of transport, increasing car ownership, rapid increase in outbound travel and new interests in nature based eco-tourism, and the adoption of 5 work days, marine eco-tourism is expected to have a very promising future and need more detailed preparation and planning. While marine eco-tourism occupies 30% of...
Resource Type:: Research Paper
Full Text:: Estimated Demand Function for TCM parameters coefficients t-value p-value CONSTANT 0.413 1.938 0.001

Consumption of Seafood - The Influence from Overweight and Health Beliefs

Creator:: Trondsen, Torbjørn, Braaten, T., Lund, E., and Eggen, A. E.
Abstract:: Main research question: How is seafood consumption influenced by overweight and health beliefs in a region of traditional high-level fish consumption? Materials and methods: A randomly drawn sample of women aged 45-69 years who live in Northern Norway answered a self-administrated questionnaire about eating habits, socioeconomic factors and questions related...
Resource Type:: Research Paper
Full Text:: overweight and health beliefs. T. Trondsen, Norwegian College of Fishery Science, University of Tromso and

A Comparative Evaluation of the Estimation of Effort-Profit Relationships in the Scottish Demersal Trawl Fishery

Creator:: Revell, B. J. and Pascoe, S.
Abstract:: Generalised linear estimation and multi-layer perception neural network modelling techniques were applied to the Scottish trawler fleet data in order to estimate which inputs have the greatest impact on boat profits and output. Both produced comparable estimates that revealed inelastic and non-linear response to vessel power and length, negative response...
Resource Type:: Research Paper
Full Text:: Effort-Profit Relationships in the Scottish Demersal Trawl Fishery B J Revell1 and S. Pascoe2 1

A precautionary approach to aquaculture: the incorporation of risk and incertainty in the feasibility analysis of shrimp hatchery in Mexico

Creator:: Martinez-Cordero, F. J., Seijo, J. C., and Juarez, L. M.
Abstract:: Sustainable aquaculture can be achieved when risk and uncertainly are incorporated in the analysis of the activity. This paper presents a precautionary approach to the feasibility analysis of a project for a commercial hatchery, applying decision theory. Two production scenarios were assessed, continuous and periodic, the later a combination of...
Resource Type:: Research Paper
Full Text:: . Elsevier. 351p, Biomdal. T. (1990) The economics of salmon aquaculture. Blackwell Scientific

The Determinants of Aquatic Products Retail Price Fluctuations in China 1978-2000

Creator:: Zhang, Xiaoshuan, Revell, Brian J., and Zetian, Fu
Abstract:: An empirical model of aquatic product price fluctuations in China has been built using a time series of urban residential and rural panel data, and estimated through cointegration and an error correction model. In the long-run cointegration equation based on urban consumption behaviour, movements in income, average consumption and farmer...
Resource Type:: Research Paper
Full Text:: @yahoo.com Brian J Revell Harper Adams University College, Shropshire, UK, bjrevell@harper-adams.ac.uk

The Optimal Recovery of a Semelparous Fish Population with Delayed Recruitment

Creator:: Doole, Graeme J. and Alexander, Robert R.
Abstract:: Annual recruitment of the New Zealand longfin eel (Anguilla dieffenbachii) has decreased by around 75 percent since heavy levels of commercial fishing began in the early 1970s. Given the unsustainability of existing regulatory policy, a deterministic multiple-cohort bioeconomic model is developed and applied to this system to gain insight into...
Resource Type:: Research Paper
Full Text:: size, Marine Resource Economics 6, 145-162, 1989. Beentjes, M. P., Chisnall, B. J., Boubee, J. A. T

The changing market position of farmed salmon in the UK : is salmon losing its luxury image?

Creator:: Clay, Patty L. and Revell, Brian J.
Abstract:: The United Kingdom is the world's second largest producer of farmed Atlantic salmon. It also represents one of the larger markets for the product. During the 1980s, there was rapid growth in the industry stimulated by high market prices and major technological advances. While there was a substantial increase in...
Resource Type:: Research Paper
Full Text:: salmon in the UK : is salmon losing its luxury image? Patty L. Clay Brian J. Revell

Applying Benefit Transfer to Improve the Transfer of Ecological Estimates in Ecosystem Services Research and Policy

Creator:: Errend, Melissa, DeWitt, Ted, and Moon, J. B.
Abstract:: Ecosystem services (ES) represent a way to represent and quantify multiple uses, values as well as connectivity between ecosystem processes and human well-being. Ecosystem-based fisheries management approaches may seek to quantify expected trade-offs in ecosystem services due to actions such as restoration and gear restrictions, or due to changes such...
Resource Type:: Presentation
Full Text:: ), Netherlands Netarts Bay, OR, USA Manukau Harbour, New Zealand McMurdo Sound, Antarctica Pe rc en t Tr

Limited Entry on the High Seas: ITQs beyond Boundaries

Creator:: Sullivan, Michael S. and Nielander, William J.
Abstract:: Although the 1982 UNCLOS endeavoured to establish EEZs and assist coastal states in being able to manage the resources throughout their range to some extent, it became obvious that further agreements were necessary to expand upon states’ international obligations in relation to conservation and management of living resources on the...
Resource Type:: Research Paper
Full Text:: Boundaries Michael S Sullivan William J Nielander Abstract Although the 1982 UNCLOS endeavoured to

Evolution of an FMP: The Atlantic Herring Fishery Management Plan

Creator:: Cho, Juang-Hee and Gates, J. M.
Abstract:: Keywords: Theoretical and Empirical Bio-Economic Modelling, Fisheries Economics
Resource Type:: Research Paper
Full Text:: Management Committee of the ASMFC which developed proposals for the Surf Clam Fishery. We ( J. Mueller and P

Bioeconomic assessment of alternative cold-water aquaculture species: early life stages

Creator:: Dalton, Timothy J. and Waning, Kate M.
Abstract:: Despite several factors favoring the development of haddock (Melanogrammus aeglefinus) aquaculture, there is virtually no economic information on its feasibility. This paper uses bioeconomic simulation techniques to conduct an ex-ante impact assessment of the early life stages in haddock production. Using an economic engineering methodology, early life stages are modeled...
Resource Type:: Research Paper
Full Text:: aquaculture species: early life stages Timothy J. Dalton1* Kate M. Waning2 Abstract Despite several factors

The Effects of Derelict Gear on Blue Crab Production in the Chesapeake Bay

Creator:: Scheld, Andrew M., Bilkovic, Donna M., and Havens, Kirk J.
Abstract:: Several factors currently threaten blue crab (Callinectes sapidus) in the Chesapeake Bay. In addition to poor water quality, degraded habitat, and shifting environmental conditions, derelict gear has recently been recognized as a significant source of mortality for this economically and culturally significant species. From 2008 through 2014, commercial watermen in...
Resource Type:: Presentation
Full Text:: Harvest Function ' ' it it t it it it t it q E X H q E X D α θ α θ ϕ  =   if no derelict pots

Wetland ecosystem-a study on fish-aquatic food crops diversity for enhancing productivity and economic stability for fish-farm families in Indian subtropics

Creator:: Puste, Anandamoy, Sarkar, Pranab Kumar, and Das, Dilip Kumar
Abstract:: An intensive case study was undertaken at the farm fisheries from during wet months under NAZ of Indian subtropics for characterization and integrated utilization of Tal wetland ecosystem through pisciculture [Live (magur - Clarias batrachus & singi - Heteropneustes fossilis) and sweet water fishes (rohu - Labeo rohita & Katla...
Resource Type:: Research Paper
Full Text:: equivalent (MYE) due to heterogeneous characteristics. Sole yield of all fishes (0.59, 0.54, 1.18 and 1.32 t

Retrospective Economic Analysis of Fraser River Sockeye Salmon Fishery Management

Creator:: Marsden, A. Dale, Sumaila, U. Rashid, and Martell, Steven J. D.
Abstract:: Many Fraser River sockeye salmon stocks show large cycles in abundance from year to year, but the causes of these cycles are not clear. As a result, these stocks have historically been managed under the hypothesis of cyclic dominance, i.e., maintaining the cyclic behaviour of the stocks. Biological studies and...
Resource Type:: Research Paper
Full Text:: /). [23] Schnute, J. T., and A. R. Kronlund, 1996, A management oriented approach to stock recruitment

Measuring Economic Performance in a Fishery: An Index Number Profit Decomposition

Creator:: Fox, Kevin J., Grafton, R. Quentin, Kompas, Tom, and Nhu Che, Tuong
Abstract:: A method is introduced and applied to analyse changed in productivity of firms harvesting in a multi-species fishery. The index-number technique decomposes firm profits into its contributions and can be used to assess economic performance by both regulators and individual firms across an industry and over time. Using an unbalanced...
Resource Type:: Research Paper
Full Text:: Index Number Profit Decomposition by Kevin J. Fox University of New South Wales R. Quentin Grafton

Determining high potential aquaculture production areas - Analysis of key socio-economic adoption factors

Creator:: Pemsl, Diemuth E., Dey, Madan M., Paraguas, Ferdinand J., and Lal Bose, Manik
Abstract:: 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...
Resource Type:: Research Paper
Full Text:: , m.dey@cgiar.org Ferdinand J. Paraguas, WorldFish Center, f.paraguas@cgiar.org Manik Lal Bose

A Bioeconomic Model of Partial Closures and Habitat Effects - The Case of a Migratory Fish Species

Creator:: Armstrong, Claire W., Armstrong, Richard J., and Reithe, Siv
Abstract:: A bioeconomic model allowing different degrees of harvesting closures for two sub-stocks consisting of mature and immature fish is presented. Hence the model opens for partial closures of fisheries on both sub-stocks. Migration between the two sub-stocks is defined as recruitment of the young to the mature sub-stock, and egg...
Resource Type:: Research Paper
Full Text:: STOCK Claire W. Armstrong*, Richard J. Armstrong** and Siv Reithe* University of Tromsø

Assignment problems and economic rent dissipation in quota-managed fisheries

Creator:: Emery, Timothy J., Tisdell, John, Hartmann, Klaas, Green, Bridget S., Gardner, Caleb, and León, Rafael
Abstract:: Although some slides are unclear, this is the best available copy and has been submitted at the request of the authors.
Resource Type:: Presentation
Full Text:: Fishing for revenue: Timothy J. Emery a, John Tisdell b

Supporting bio-economic evaluation of spatial planning constraining fishing activities: be quantitative, spatially-explicit, vessel-oriented, stochastic, and dynamically coupled to fish populations

Creator:: Bastardie, Francois, Nielsen, J. Rasmus, Fock, Heino O., Jonsson, Patrik, and Bartolino, Valerio
Abstract:: Maritime spatial planning and fishery management are likely to generate extra costs for the fisheries by constraining fishermen activity with conservation areas and new utilizations of the sea such as offshore windmill parks. Growing concerns for greener and energy efficient fisheries are also likely to alter existing fishing patterns already...
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Full Text:: DTU Francois Bastardie fba@aqua.dtu.dk J. Rasmus Nielsen

Consumer Attitudes Towards Oysters in Australia: An Analysis of Demographic Characteristics

Creator:: Liu, Yu, Kow, Felicia, Grewal, Devinder, and Fitzgerald, Des
Abstract:: The need to understand the oyster consumption patterns has become a more and more important issue for Australian marketers today due to the dramatic increase of oyster production. This study sought to gain an insight into the influence of the different demographic characteristics on the consumer attitudes towards oysters. The...
Resource Type:: Research Paper
Full Text:: Social Measurement, Decemeber 1990, pp. 137-151. Lin, J. C. T., Milon J. W. & Babb E. 1991

A Management Policy for North Japan Sea Sailfin Sandfish, Arctoscopus japonicus Stock

Creator:: Watanabe, Kyuji, Sugiyama, Hideki, Sugishita, Shigeo, Suzuki, Naoki, and Sakuramoto, Kazumi
Abstract:: The fishery cooperative association of Akita Prefecture closed the sailfin sandfish Arctoscopus japonicus fisheries from 1992 to 1994 to rehabilitate the stock. Following the temporary closure, the total allowable catch (TAC) has gradually increased. The aim of this study is to evaluate the effects of the fishery moratorium and other...
Resource Type:: Research Paper
Full Text:: Dynamic model of stock size The dynamic model of stock size in number was assumed as TNt = Rt + [Na-1,t

An analysis of Japanese tuna prices using vector autoregressions main author

Creator:: Lei, Li-Fen
Abstract:: Japan is both the largest producer and consumer of tuna in the world. However, Taiwan has been a major exporter to Japan of Thunnus albacares and Thunnus obesus recently. For example, the market shares of Taiwan's supply are 20% for T. albacares, and 44% for T. obesus in 1992. Hence,...
Resource Type:: Research Paper
Full Text:: Reference Manual Version 7.0 McGraw-Hill Book Company, 1993. Shonkwiler, J. S. and T. H. Spreen. ''A

Evolution des importations du poisson suite à la dévaluation du franc CFA et son impact sur la production locale camerounaise

Creator:: Njifonjou, Oumarou
Abstract:: Les importations de poisson jouent un rôle prépondérant ans l'approvisionnement de la population camerounaise en matière de produits de pêche. Avec près de 12 millions d'habitants pour une croissance de 3,2 %. la demande globale de poisson plafonne autour de 200 000 t par an alors que la production locale...
Resource Type:: Research Paper
Full Text:: d'habitants pour une croissance de 3,2 %. la demande globale de poisson plafonne autour de 200 000 T par an

Fisher's participation in development activities in the community with different level of co-management processes (case study in Demak and Pemalang, Central Java-Indonesia)

Creator:: Susilowati, Indtah and Waridin
Abstract:: People’s participation in development efforts is to create sense of awareness and involvement, increase level of aspiration, and mobilize local resources for productive purposes. The process whereby people learn to take charge on their own lives and solve their own problems is the essence of development (Burkey, 1993). Many programs...
Resource Type:: Research Paper
Full Text:: processes - is not statistically different (t=0.823; p-value=0.412). In contrast, the participation of

Recovering Fisheries from Crisis or Collapse: How to Shorten Impact Time of International Research Cooperation

Creator:: Nauen, Cornelia E., Christensen, Villy, Failler, Pierre, Opitz, Silvia, and Thatje, Sven
Abstract:: ICES – the International Council for the Exploration of the Sea – was founded more than a century ago out of concern for overfishing. However, today’s global marine ecosystems are for the most part in a degraded state, many alarmingly so. Why is the science used so little to make...
Resource Type:: Research Paper
Full Text:: RESEARCH COOPERATION Cornelia E. Nauen, European Commission, DG Research, International S&T Cooperation

Fishermen, Markets, and Population Diversity

Creator:: Jardine, Sunny and Sanchirico, James N.
Abstract:: Fishing impacts biodiversity on multiple levels, potentially resulting in unintended feedbacks to economic performance of the fishery over time. For example, targeting observable traits within a population can impact genetic diversity, targeting populations within a species can impact population diversity, and targeting valuable species can impact biodiversity at the ecosystem...
Resource Type:: Presentation
Full Text:: ) qiX(t)︸︷︷︸ Schaefer −γ if j = 1 v︸︷︷︸ Opportunity cost if j = 0 (5) Economic Model: Markets

Optimal Harvest in a Multispecies Age Structured Fishery Model at Different Level of Density Dependency

Creator:: Poudel, Diwakar
Abstract:: This study suggests an optimal harvest policy for Barents Sea species, namely Northeast Arctic Cod (Gadus morhua) and Capelin (Mallotus villosus) in the multispecies ecosystem. We have solved a multispecies age structured bioeconomic model for predator-prey interaction. Barents Sea stock data from ICES (International Council for the Exploration of the...
Resource Type:: Presentation
Full Text:: the predation of capelin is a function of the capelin biomass wyp = h(wy ,Bx,t)) = wy + j(By,t) = wy

Implications of Different Spatial Management Strategies when Establishing Territorial User Fishing Rights and Marine Protected Areas for Interconnected Marine Systems

Creator:: Molina, Renato, Costello, Chris, and Gaines, Steve
Abstract:: The lack of property rights in fisheries is a well-known source of undesirable outcomes in terms of sustainability and profitability for fisheries. Both Territorial User Fishing Rights (TURF) and Marine Protected Areas (MPA) have been proposed as a tool for managing coastal fisheries, recovering stocks and improving fishing yields; it...
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Full Text:: − Hi ,t (1) Growth Gi ,t(Xi ,t) = Xi ,t + ri ,tXi ,t(1− Xi ,t/Ki ,t) (2) Movement Si ,t+1 = ∑ j Dj

Pulse-Seasonal Harvesting Via Nonlinear Delay Differential Equations and Applications in Fishery Management

Creator:: Idels, Lev V. and Ou, Beiyan
Abstract:: 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...
Resource Type:: Research Paper
Full Text:: Dynamics [ 1,3 ] ( , ) ( ) ( ) ( )dN G t N N t F t N t dt = − where N = N(t) is the population biomass

Estimating a Generalized Gordon-Schaefer Model with Heterogeneous Fishing Data

Creator:: Zhang, Junjie and Smith, Martin D.
Abstract:: 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...
Resource Type:: Research Paper
Full Text:: includes one area, multiple period (t), multiple gears (k) and multiple vessels (i). The number of vessels

Reference Points for Vulnerable Fish Species Based on Bioeconomic Age-Structured Models: An Approach for Totoaba macdonaldi

Creator:: Rodríguez-García, Oswaldo Uriel, De Anda-Montañez, Juan Antonio, Valenzuela-Quiñonez, Fausto, Hernández-Flores, Alvaro, Salas-Márquez, Silvia, and María Da-Rocha, José
Abstract:: Management objectives of vulnerable fish species must focus on maintaining healthy population status. Hence, reference points should be constrained to ensure recruitment. We assessed bioeconomic reference points for the totoaba (Totoaba macdonaldi), an endemic fish to the Gulf of California, reaching lengths of 2 m and 25 years. Totoaba fishing...
Resource Type:: Presentation
Full Text:: ; also is seen as a luxury meal. - T. macdonaldi swim bladder can reach US$8,000/kg ex-vessel

Faustmann in the Sea Optimal Rotation in Aquaculture

Creator:: Guttormsen, Atle G.
Abstract:: In this paper an extended version of the well-known Faustmann model is developed for solving the rotation problem in fish farming. Two particularly important aspects of the problem are emphasized: namely first, the possibilities for cycles in relative price relationships and second, the problem with limitations in release time for...
Resource Type:: Research Paper
Full Text:: tree should be cut at age T when the marginal increment to the value of the trees equals the sum of

Nonlinear Inverse Almost Ideal Demand System for Shellfish in Rhode Island: A Market Study

Creator:: Sudhakaran, Pratheesh O. and Uchida, Hiro
Abstract:: The opening and closing of the shellfish harvest area inevitably influences the market, particularly the exvessel prices that harvesters receive. Without a better understanding of shellfish market and its behaviors, it is impractical to determine the impact of management policies on the market as well as the fishery resources. Using...
Resource Type:: Presentation
Full Text:: Share of good i Quantity of good j Quantity Index • Quantity Index defined as ∑∑∑ ++= i ji

Bioeconomic Modeling for the Evaluation of Fishery Resources Based on the Schaefer Model

Creator:: Oishi, Taro, Yagi, Nobuyuki, Ariji, Masahiko, and Sakai, Yutaro
Abstract:: 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...
Resource Type:: Research Paper
Full Text:: biomass in time t; K (= r/L) is the intrinsic growth rate of fish stock r over the carrying capacity of

Long-Term Health Effects, Risk Perceptions, and Consumption Patterns for Aquacultured Seafood

Creator:: Uchida, Hirotsugu, Roheim, Cathy, and Johnston, Roberty
Abstract:: For US aquaculture industry, primary factors influencing their competitiveness are consumers' perceptions of long-term health risks related to domestic farmed seafood consumption. The public is often particularly sensitive to food risk scares, and can often dominate other considerations in food choice and lead to large impacts on consumption and the...
Resource Type:: Presentation
Full Text:: 1 1 1 1 2 5 1 1 ijkt t j ij k ik t t j k k ik t k ik t j ij t j ij t k k j j jk ij ik t jk ij

Fishery Participation and Location Choice: The West Coast Salmon Fishery

Creator:: Vasquez Caballero, Smit, Sylvia, Gilbert, and Holland, Dan
Abstract:: A behavioral study on fishery participation and fishing location choice for the West Coast Salmon fishermen was undertaken to determine the effect of salmon fishery closures on the distribution of fishermen across alternative fisheries and fishing locations. A dataset describing fishing trips from West Coast salmon vessels from 2005 to...
Resource Type:: Presentation
Full Text:: fisherman n obtains from choosing alternative j at time t we can state the fisherman n problem as: max j∈{1

Common Pool Politics and inefficient Fishery Management

Creator:: Hoffmann, Julia and Quaas, Martin F.
Abstract:: The main instrument used in fishery management is the total allowable catch (TAC). Fishery management often fails because TACs are set too high and do not sufficiently restrict fisheries. The question we address in this paper is why do decision makers choose inefficiently high TACs? Our approach is to model...
Resource Type:: Presentation
Full Text:: ) • maximisation problem: max si ∞∑ t=1 δt−1(π(xt)− π(st)) subject to xt+1 = ztg(st) (10) • gives s?j = min{x

The short-run viability of fishing vessels: the case of the French Norway lobster fishery in the Biscay Bay

Creator:: Metz, Sebastien
Abstract:: The French Norway lobster (Nephrops norvegicus) fishery situated in the Biscay Bay is composed by about 250 costal trawlers. These boats are registered in harbours located in South Brittany (Le Guilvinec, Lorient, Concarneau) and in the Vendée (Sables d'Olonnes, La Cotinière). The main particularity of the fishery is that lobsters...
Resource Type:: Research Paper
Full Text:: time path t∆ is therefore expressed in fraction of year (1/4, 1/12 or 1/52). Describing the two

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