Index Catalog // ScholarsArchive@OSU

Ecopath-based simulation and optimization of management options for the Eastern Gulf of Mexico reef fish fishery

Creator:: Larkin, Sherry, Alvarez, Sergio, Chagaris, Dave, Tetzlaff, Jake, Walters, Carl, Allen, Mike, Mahmoudi, Behzad, Lindberg, Bill, and Pine, Bill
Abstract:: Ecological and economic tradeoffs of proposed management actions were assessed using the Ecopath with Ecosim (EwE) and Ecospace software. The model has 70 biomass pools (e.g., detritus, primary producers, invertebrates, fish, dolphins, sea birds), including multiple age-classes of key species. After mass-balancing, the model was driven using observed fishing mortality...
Resource Type:: Other

Building Ecological-Economic Models and Scenarios of Marine Resource Systems

Creator:: Thebaud, Olivier, Smith, Anthony D. M., Vermard, Youen, Doyen, Luc, Innes, James, Lample, Michel, Macher, Claire, Mullon, Christian, Planque, Benjamin, Quaas, Martin F., and Mahévas, Stéphanie
Abstract:: As part of the ecosystem approach to managing fisheries and other uses of marine ecosystems, there has been a growing call for the development of integrated assessment tools to support the provision of both tactical and strategic management advice. Of particular importance in this domain is the development of models...
Resource Type:: Presentation
Full Text:: stakeholders 8 | 1 / Need to include ecological, economic and social dimensions 2 / Importance of

Combining Fishermen’s Knowledge with Economic Models to Locate and Evaluate Gray Meat Outbreaks in Atlantic Sea Scallops

Creator:: Inglis, Susan, Georgianna, Daniel, Lee, Min-Yang, Levesque, Megan, St. Martin, Kevin, Endicott, Mike, Kristmundsson, Arni, Freeman, Mark A., and Stokesbury, Kevin
Abstract:: Atlantic sea scallop fisheries in Iceland and the United States have been subject to outbreaks of ‘gray meat’, a disease caused by infestation by a new species of apicomplexan parasite that causes progressive myodegeneration of scallop meats that kills scallops and reduces recruitment. Due to reduced exvessel value, fishermen discard...
Resource Type:: Presentation
Full Text:: . University of Iceland Captain Ray Cabral $2 $4 $6 $8 $10 $12

A Comparative Analysis of Recent Trends in the Characteristics of Selected European Fishing Fleets

Creator:: Thebaud, Olivier, Guyader, Olivier, Mardle, Simon, Hutton, Trevor, Le Floc'h, Pascal, Clapes, Juan Pintos, Prellezo, Raul, Steinmetz, Fabien, and Van Oostenbrugge, Hans
Abstract:: The objective of the paper is to briefly present a comparative analysis of trends in the characteristics of selected European fleets, observed over the last fifteen years, as an introduction to three empirical studies of the behavioural determinants of these trends. The analysis presented aims at (i) describing changes observed...
Resource Type:: Research Paper

Evaluation of Integrated Ecological-Economic Models - What are they used for?

Creator:: Schmidt, Jörn O., Nielsen, J. Rasmus, Thunberg, Eric, Holland, Dan, Amboage, Rosa Mato, Bastardie, Francois, Bethke, Eckhard, Da-Rocha, José M., Doering, Ralf, Garcia, Dorleta, Hoff, Ayoe, Macher, Claire, Mahévas, Stéphanie, Palacz, Artur, Prellezo, Raul, Simons, Sarah, Ulrich, Clara, and Waldo, Staffan
Abstract:: This study compares globally available integrated ecological-economic models with focus on use and implementation in scientific and advisory contexts. The Ecosystem based Approach to (Fisheries) Management (EAM) calls for an understanding and management of fisheries and other uses of the marine environment that explicitly take into account ecological, economic and...
Resource Type:: Presentation
Full Text:: first analysis  Further outreach to incorporate more models 8 Model characteristics 1/3 scope

Modeling the Economic Benefits of Temporary Octopus Fisheries Closures

Creator:: Oleson, Kirsten, Oliver, Thomas, and Barnes-Mauthe, Michele
Abstract:: A local fisheries management model employing short-term fisheries closures for rapidly growing species is proliferating across coastal east Africa and Indian Ocean islands. Aiming to improve management and boost incomes, NGOs, international finance institutions, and government agencies are promoting the technique in artisanal fishing communities. In southwest Madagascar alone, over...
Resource Type:: Other
Full Text:: gathered over 8 years to investigate the economic effects of octopus fishery closures in the Velondriake

Privatizing Renewable Resources: Who gains, who loses?

Creator:: Stoeven, Max and Quaas, Martin
Abstract:: Using renewable resources can provide society with (i) resource rent, (ii) consumer surplus and (iii) worker surplus in resource harvesting. In a dynamic analysis we show that privatization increases the present value of consumer surplus and worker surplus if harvesting productivity does not depend on the resource stock. If it...
Resource Type:: Other
Full Text:: value of resource rent by 8 billion Norwegian Krone, while the present value of consumer surplus would

Main-d'oeuvre et migrations côtières au Mexique

Creator:: Fraga, Julia
Abstract:: L’auteur s'attarde aux modalités d'insertion d'une main-d’œuvre agricole dans le secteur halieutique mexicain et en souligne les conséquences pour les communautés d'accueil. Privilégiant comme axes de discussion le type de migrations permanentes et le contexte productif (secteur privé ou coopératives), elle démontre comment la migration, en devenant une stratégie principale...
Resource Type:: Research Paper
Full Text:: 8 communautés côtières, Les résultats soulignent l'existence de stratégies migratoires variées

Improving Management of Atlantic Sea Scallops Through Optimal Rotation of Fishing Grounds

Creator:: Valderrama, Diego and Anderson, James L.
Abstract:: By the mid-1990s, Atlantic sea scallop populations in the northeastern United States had been driven to near depletion due to years of excessive fishing pressure and ineffective fishing regulations. However, above-average recruitment coupled with new regulations based on reduction of fishing effort and demarcation of closed areas with restricted access...
Resource Type:: Research Paper
Full Text:: instituting an 8-year rotation period in Georges Bank (a six- year closure followed by 2 years of intense

Bioeconomic Evaluations of Alternative Management Strategies for the New Zealand Otago and Southland Stock of Red Rock Lobster (Jasus edwardsii)

Creator:: Lallemand, Philippe, Holland, Dan, and Bentley, Nokome
Abstract:: The Otago (CRA 7) and Southland (CRA 8) regions are managed with distinct individual transferable quotas (ITQs) as part of the New Zealand quota management system (QMS). However, for assessment purposes, they are considered as a single stock known as the NSS (North-South Islands - South) rock lobster stock. Currently,...
Resource Type:: Research Paper
Full Text:: (CRA 8) regions are managed with distinct individual transferable quotas (ITQs) as part of the New

ScholarsArchive@OSU

Ecopath-based simulation and optimization of management options for the Eastern Gulf of Mexico reef fish fishery

Building Ecological-Economic Models and Scenarios of Marine Resource Systems

Combining Fishermen’s Knowledge with Economic Models to Locate and Evaluate Gray Meat Outbreaks in Atlantic Sea Scallops

A Comparative Analysis of Recent Trends in the Characteristics of Selected European Fishing Fleets

Evaluation of Integrated Ecological-Economic Models - What are they used for?

Modeling the Economic Benefits of Temporary Octopus Fisheries Closures

Privatizing Renewable Resources: Who gains, who loses?

Main-d'oeuvre et migrations côtières au Mexique

Improving Management of Atlantic Sea Scallops Through Optimal Rotation of Fishing Grounds

Bioeconomic Evaluations of Alternative Management Strategies for the New Zealand Otago and Southland Stock of Red Rock Lobster (Jasus edwardsii)

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