Index Catalog // ScholarsArchive@OSU

Bioeconomic Dynamic Modelling of the Chilean Southern Demersal Fishery

Creator:: Cerda-D'Amico, Rene, Gonzalez Poblete, Exequiel, and Molina Hernandez, Renato
Abstract:: The demersal fishery of southern Chile is a complex system including multiple species, fishing fleets and markets. Fishing activity is conducted under a rights-based system for southern hake (Merluccius australis) and hoki (Macroronus magellanicus), where a TAC is allocated in an even manner among fleets and operators. New management approaches...
Resource Type:: Research Paper
Full Text:: . González, P. Arana, H. Trujillo, H. Morales y J. Sepúlveda. 2009. Bases técnicas para el plan de manejo

Small secreted proteins of pyrenophora tritici-repentis and their role in wheat Infection

Creator:: Hernandez, Jason, Manning, Viola, Pandelova, Iovanna, and Ciuffetti, Lynda M.
Abstract:: Host-selective toxins (HSTs) secreted by the pathogenic isolate of Pyrenophora tritici-repentis, BFP, are major pathogenicity factors in tan spot disease of wheat. Along with characterized HSTs such as Ptr ToxA (ToxA), BFP secretes at least two more uncharacterized toxic components. In an attempt to identify these additional components, 12 candidate...
Resource Type:: Research Paper
Full Text:: -repentis and their Role in Wheat Infection Jason Hernandez, Viola Manning, Iovanna Pandelova, and Lynda M

Optimal Harvesting Time in Fish Farming with Heterogenous Population

Creator:: Gasca-Leyva, Eucario, Hernandez, Juan M., and Veliov, Vladimir M.
Abstract:: The optimal harvesting time in a fish farm is analyzed in the paper. Fish population is assumed to be heterogeneous with respect to weight, so a distributed parameter dynamic model is considered. Theoretical and numerical results are obtained and compared with the ones concerning homogeneous fish cultures only. The results...
Resource Type:: Research Paper
Full Text:: Juan M. Hernández, University of Las Palmas de Gran Canaria, jhernandez@dmc.ulpgc.es Vladimir M. Veliov

Optimal Harvesting Time in Aquaculture Assuming Nonlinear Size-Heterogeneous Growth

Creator:: Araneda, Marcelo E., Hernandez, Juan M., and Gasca-Leyva, Eucario
Abstract:: This study explores the optimal harvesting time in a size-heterogeneous population dynamics. The model includes the effect of population density in both the mortality rate and individual growth. An application to specific conditions of shrimp culture in Mexico is presented. The optimal harvesting rule is numerically found for different economic...
Resource Type:: Research Paper
Full Text:: M. Hernandez, Universidad de las Palmas de Gran Canaria, Spain, jhernandez@dmc.ulpgc.es Eucario

Bioeconomic Analysis of Ration Size in Nile Tilapia Feeding: An Example of Yucatan, Mexico

Creator:: Poot-López, Gaspar R., Hernández, Juan M., and Gasca-Leyva, Eucario
Abstract:: Nile tilapia has been cultivated in intensive systems in Yucatan, Mexico, during the first years of this century. Nevertheless, its adoption faces technical (related to the use of commercial feed) and marketing problems (fixed price of $2.14/Kg), which are analyzed in this paper. To do this, a bioeconomic model of...
Resource Type:: Research Paper
Full Text:: , MEXICO Gaspar R. Poot-López, Universidad Autónoma de Yucatán, México gaspar.poot@uady.mx Juan M

Internalising Environmental Cost in Aquaculture Farms

Creator:: Leon-Santana, Miguel and Hernandez, Juan M.
Abstract:: This paper analyses the effect of adopting certain policies of internalising environmental costs on the optimal management of farms. In particular, the optimal harvesting time is analysed once these policies have been implemented. Fish growth and contamination diffusion are represented by means of dynamic stochastic models, including the uncertainty inherent...
Resource Type:: Research Paper
Full Text:: (s): Miguel León-Santana , Juan M. Hernández Abstract: This paper analyses the effect of

Measuring China's export competitiveness in seafood markets: a strategic management approach

Creator:: Revell, Brian James, Liu, Xue, and Fu, Zetian
Abstract:: China accounted for over 8 percent of world exports by value in fish and shellfish in 2002. Over the period 1998-2002 it rose from 4th to 2nd largest amongst exporting countries. Yet, there has been surprisingly little analysis of the trading performance and international competitiveness of China in world fish...
Resource Type:: Research Paper
Full Text:: theory with those of strategic management, through the concept of an Attractiveness-Position (A-P

Impact Reduction in Demersal Fisheries: A Multi-Criteria Assessment of Objective Priorities

Creator:: Innes, James P.
Abstract:: When attempting to mitigate the environmental impacts of a fishery there are typically multiple criteria against which the performance of any measures can be assessed. If the gains are non-commercial (i.e. non-market) in nature, formally determining how well measures perform becomes more difficult. This study applies the analytic hierarchy process...
Resource Type:: Research Paper
Full Text:: OBJECTIVE PRIORITIES James P. Innes, CEMARE, University of Portsmouth, James.Innes@port.ac.uk ABSTRACT

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:: . Hillis, J. P., M. Fitzsimons, V. McEwan, P. E. Rodgers, R. O’Connoir, and B. J. Whelan, 1994. Overall

Enforcement Program Optimisation Through Adaptive Management

Creator:: McKinlay, John P.
Abstract:: Western Australia operates a diverse enforcement and education program aimed at achieving high compliance in a wide range of commercial and recreational fisheries managed using a mix of input and output controls. Since enforcement resources are invariably insufficient to totally eliminate non-compliance with fishery rules, it is important to ensure...
Resource Type:: Research Paper
Full Text:: A ve ra ge N um be r o f I nf rin ge m en ts P er B as ke t Season 98/99 99/00 0.1

ScholarsArchive@OSU

Bioeconomic Dynamic Modelling of the Chilean Southern Demersal Fishery

Small secreted proteins of pyrenophora tritici-repentis and their role in wheat Infection

Optimal Harvesting Time in Fish Farming with Heterogenous Population

Optimal Harvesting Time in Aquaculture Assuming Nonlinear Size-Heterogeneous Growth

Bioeconomic Analysis of Ration Size in Nile Tilapia Feeding: An Example of Yucatan, Mexico

Internalising Environmental Cost in Aquaculture Farms

Measuring China's export competitiveness in seafood markets: a strategic management approach

Impact Reduction in Demersal Fisheries: A Multi-Criteria Assessment of Objective Priorities

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

Enforcement Program Optimisation Through Adaptive Management

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