Index Catalog // ScholarsArchive@OSU

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

Creator:: Emery, Timothy, Tisdell, John, Hartmann, Klaas, Green, Bridget, Gardner, Caleb, and Leon, Rafael
Abstract:: If the spatial and temporal distribution of resources is not homogenous it creates an assignment problem. While the adoption of individual (or transferable) quota management in many commercial fisheries has resolved issues of over-appropriation, assignment problems may remain due to the spatial and temporal complexity of fisheries resources, which creates...
Resource Type:: Presentation
Full Text:: , Klaas Hartmann a, Bridget S. Green a, Caleb Gardner a and Rafael Leon a a Institute for Marine

Creator:: Garcia-Martinez, S. and Nichols, W. J.
Abstract:: Sea turtles have historically been a primary resource for many of the coastal inhabitants of Bahia Magdalena, Baja California Sur, Mexico. Despite their endangered status and the implementation in 1990 of Mexican laws prohibiting the harvest of sea turtles, the demand for and the supply of these animals has persisted...
Resource Type:: Conference Proceeding
Full Text:: Donlou, Chip Fong, Chris Forst, Arturo García-de Leon Ferrer, Amalia Smith, Michael Chuang, Todd Deck

Creator:: Arceo, Patricia, Pérez-España, Horacio, Bello, Javier, Granados-Barba, Alejandro, Salas-Monreal, David, and Ortíz-Lozano, Leonardo D.
Abstract:: 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....
Resource Type:: Research Paper
Full Text:: National Park Veracruz Reef System (Spanish acronym PNSAV), located on the Gulf of Mexico´s east coast

Creator:: International Institute of Fisheries Economics & Trade
Abstract:: Program for IIFET 2022 Galicia, held at Auditorio Mar de Vigo in Vigo, Galicia, Spain, from 18-22 July 2022.
Resource Type:: Conference Proceeding
Full Text:: fisheries in Iceland; What has changed since the 1990’s (Magnús Víðisson*) • Risky Business: Can

Creator:: Coglan, Louisa, Pascoe, Sean, Mardle, Simon, and Hutton, Trevor
Abstract:: Closed areas are often used as either temporary or permanent measures to reduce fishing pressure on stocks. A major concern, however, is what happens to the effort that was previously employed in these areas. When modelling the potential impacts of the closed areas, it is necessary to model changes in...
Resource Type:: Research Paper
Full Text:: requires a degree of risk seeking behaviour. Dreyfus-Léon (1999) developed a neural network model of

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:: ))N(t);S(1(t)N V =−−=& (Eq. 5) Where SV(t) is the daily survival rate (%/day) at time t. In order

Creator:: Lopez, Gaspar Roman Poot and Leyva, Eucario Gasca
Abstract:: Tilapia culture in Yucatan State, Mexico, is largely semi-intensive. The producers are mostly poor farmers who receive government subsidies for purchase of fingerlings and balanced feed. Feeding practices are often inadequate (satiety rations), moreover, producers frequently suffer financial and resource shortfalls. During feed shortages producers are known to use empirical...
Resource Type:: Research Paper
Full Text:: accessories $ 25,200 Discount rate (i) % 7.3 Survivor parameters Constant rate of survival (S) %/day

Creator:: Doyen, Luc and Pereau, Jean-Christophe
Abstract:: This article gives insights on the complex balance between coalitions structure, resource state or dynamics and agents’ heterogeneity to avoid bio-economic collapses. A model bringing together coalition games and a viability approach is proposed to focus on the compatibility between bio-economic constraints and an exploited common stock dynamics. It is...
Resource Type:: Research Paper
Full Text:: CNRS 5113, Université de Bordeaux, Av leon Duguit, 33608 Pessac, France. Email: jean

Creator:: Doyen, Luc, Little, L. Rich, Pereau, Jean-Christophe, and Thébaud, Olivier
Abstract:: This paper deals with the sustainable management of a renewable resource based on individual and transferable quotas (ITQs) when agents differ in terms of harvesting costs or catchability. In a dynamic bio-economic model, we determine the conditions under which the manager of an ITQ system can achieve sustainability objectives which...
Resource Type:: Research Paper
Full Text:: , Universit de Bordeaux, Av leon Duguit, 33608 Pessac, France. Email: jean-christophe.pereau@u-bordeaux4.fr

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