Index Catalog // ScholarsArchive@OSU

Fishing Down the Food Chain: Modeling Trophic interactions in Exploited Marine Ecosystems

Creator:: Wilen, Christopher and Wilen, James
Abstract:: There is increasing concern among fisheries scientists and managers over the ecosystem effects of fisheries exploitation. This concern has been motivated by several publications inferring that the structure of marine ecosystems has been dramatically altered by historical patterns of fishing. Among the most cited studies is the paper by Pauly...
Resource Type:: Other
Full Text:: increasing concern among fisheries scientists and managers over the ecosystem effects of fisheries

Optimal Multispecies Harvesting Targets in Biologically, Technologically, and Temporally interdependent Fisheries

Creator:: Kasperski, Stephen
Abstract:: Every fish species is part of a complex ecosystem which competes with other species for resources. Likewise, the harvesting of fish species often involves technological interactions which results in catching multiple species as well as temporal interactions between species as fishermen allocate their effort across multiple fisheries over the course...
Resource Type:: Other
Full Text:: fisheries over the course of a year. Ecosystem-based approaches to fisheries management should address both

Simulating the Effect of Seasonal Fishing Moratorium on the Pearl River Estuary Coastal Ecosystem for Fisheries Strategies Exploration

Creator:: Duan, Lijie, Li, Shiyu, Liu, Yu, Wang, Ying, Failler, Pierre, Christensen, Villy, and Moreau, Jacques
Abstract:: The coastal ecosystem of the Pearl River Estuary (PRE) has been overfished and received a high level of combined pollution in the past decades. The fisheries stock assessments have shown a declining population and have led to a number of management measures, including fishing moratorium. This study evaluated the effect...
Resource Type:: Research Paper
Full Text:: Management 47(11–12):709–25. Sandberg J. 2007. Cross-ecosystem analyses of pelagic food web structure and

Seafood Market-Series As Fishing Pressure indicators for An Eaf: A Historical Multispecies Analysis of the São Paulo Wholesale Market, Se Brazil

Creator:: Pincinato, Ruth and Gasalla, Maria
Abstract:: The ecosystem approach to fisheries (EAF) challenges the sustainable management of resources at an ecosystem level facing human well-being and environmental health. Here we describe how economic analyses may fill important knowledge gaps for such a challenge when regarding a broader multispecies context, e.g. tracking signals of change in ecosystem...
Resource Type:: Other
Full Text:: ) challenges the sustainable management of resources at an ecosystem level facing human well-being and

Demonstrating the Evolution towards Ecosystem Management in Regional Fishery Management Organizations

Creator:: Brinson, Ayeisha and Die, David
Abstract:: In ecosystem-based fishery management, the ecosystem comprises the natural sub-system and also human components, including user groups, institutions and the processes of management. Regional Fishery Management Organizations (RFMOs), particularly those designed to manage tunas, were not established with an ecosystem view of the pelagic environment. However, tuna RFMOs have evolved...
Resource Type:: Other
Full Text:: Evolution towards Ecosystem Management in Regional Fishery Management Organizations Authors: Ayeisha

Managing for Ecosystem Services through Governance Networks: An Analysis of Oregon Senate Bill 513

Creator:: Paulsen, Harmony
Abstract:: Human adaptation to change is an essential determinant in the resilience of complex social-ecological systems. In the field of water policy and management it has become increasingly clear that traditional government actors cannot fully address emerging water problems at every scale given a demonstrated lack of resources, increasing variability in...
Resource Type:: Presentation
Full Text:: Assembly in 2009 Emphasizes ecosystem-based approach to natural resource management Managing for ecosystem

Special Session: Coupled Economic-Ecological Models for Ecosystem-Based Fishery Management: Exploration of Trade-offs Between Model Complexity and Management Needs

Creator:: Thunberg, Eric, Holland, Dan, Nielsen, Rasmus, and Schmidt, Jörn O.
Abstract:: Ecosystem based fishery management has moved beyond rhetorical statements calling for a more holistic approach to resource management, to implementing decisions on resource use that are compatible with goals of maintaining ecosystem health and resilience. Coupled economic-ecological models are a primary tool for informing these decisions. Recognizing the importance of...
Resource Type:: Other
Full Text:: : Coupled Economic-Ecological Models for Ecosystem-Based Fishery Management: Exploration of Trade-offs

Indicators for Ecosystem Externalities in Fishing

Creator:: Ravn-Jonsen, Lars, Andersen, Ken H., and Vestergaard, Niels
Abstract:: Ecosystem externalities arise when one use of an ecosystem affects its other uses through the production functions of the ecosystem. We use simulations from a size-spectrum ecosystem model to investigate the ecosystem externality created by fishing of multiple species. The model is based upon general ecological principles and is calibrated...
Resource Type:: Presentation
Full Text:: An Indicator for Ecosystem Externalities in Fishing Lars J. Ravn-Jonsen∗, Ken Haste Andersen

Determining Optimal Catch in Age-Structural Multispecies Fisheries

Creator:: Poudel, Diwakar and Steinshamn, Stein Ivar
Abstract:: This study investigates optimal catch of Barents Sea stocks, namely Northeast Arctic Cod and Capelin in multispecies ecosystem. We solve a multispecies age structured bioeconomic model for predator-prey interaction. Barents Sea stock data from ICES are employed for model application. Among others, we also include sustainability constraint in the model...
Resource Type:: Presentation
Full Text:: increase the contribution in the resource management. • In the age structured model, there are individual

An Integrated Approach for Evaluating the Societal Impacts of Fisheries Activities in the Pearl River Delta

Creator:: Wang, Ying, Pan, Haoran, Li, Shiyu, and Failler, Pierre
Abstract:: The paper puts forward a model of the Pearl River Delta (PRD) fishery in the South China Sea that integrates the ecological, social and economic costs and benefits of fisheries activities in a multidisciplinary framework. In particular, In particular, we developed integrated model by linking a regional Social Accounting Matrix...
Resource Type:: Presentation
Full Text:: effect of seasonal fishing closure on the Pearl River Estuary using ecosystem simulation  20-22

ScholarsArchive@OSU

Fishing Down the Food Chain: Modeling Trophic interactions in Exploited Marine Ecosystems

Optimal Multispecies Harvesting Targets in Biologically, Technologically, and Temporally interdependent Fisheries

Simulating the Effect of Seasonal Fishing Moratorium on the Pearl River Estuary Coastal Ecosystem for Fisheries Strategies Exploration

Seafood Market-Series As Fishing Pressure indicators for An Eaf: A Historical Multispecies Analysis of the São Paulo Wholesale Market, Se Brazil

Demonstrating the Evolution towards Ecosystem Management in Regional Fishery Management Organizations

Managing for Ecosystem Services through Governance Networks: An Analysis of Oregon Senate Bill 513

Special Session: Coupled Economic-Ecological Models for Ecosystem-Based Fishery Management: Exploration of Trade-offs Between Model Complexity and Management Needs

Indicators for Ecosystem Externalities in Fishing

Determining Optimal Catch in Age-Structural Multispecies Fisheries

An Integrated Approach for Evaluating the Societal Impacts of Fisheries Activities in the Pearl River Delta

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