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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

Creator:: Abbott, Joshua K. and Fenichel, Eli P.
Abstract:: Fisheries sustainability is a much sought-after goal. Yet, “sustainability” is often too ambiguously defined to be of much practical guidance to policymakers. Furthermore, fisheries managers are increasingly expected to assess and manage fisheries in an “ecosystem-based” manner – accounting for the ecological interdependencies of species and their coupling with the...
Resource Type:: Presentation
Full Text:: Comprehensive Fishery Wealth: A Bioeconomic, Ecosystem- Based Approach to Measuring Fisheries Sustainability

Creator:: Hutniczak, Barbara
Abstract:: Multispecies fisheries pose a considerable management difficulty with respect to quota allocation between species. Externalities of direct control over the harvest may include, among others, creation of unbalanced predator‐prey relationships in the environment. That, in turn, may affect the individual economic incentives of fishing vessels. Combining economic and ecological factors...
Resource Type:: Presentation
Full Text:: Ecosystem Based Management Context Barbara Hutniczak NAAFE Conference May

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

Creator:: Christensen, Villy, Villanueva, Maria Concepcion, and Aiken, Karl A.
Abstract:: The wide expanse of the sea, the inter-linkages among, and the productivity of its resources have until recently led most researchers to consider it unrealistic that humans could have more than local impact on marine ecosystems and their biodiversity. This perception is changing, however, as more evidence of the scale...
Resource Type:: Research Paper
Full Text:: . Keywords: Ecosystem based management of fisheries, ecosystem modeling. Roll on, thou deep and dark

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

Creator:: Olsen, Erik, Dommasnes, Are, Fossum, Petter, Gjøsæter, Harald, Røttingen, Ingolf, and Sandberg, Per
Abstract:: Earlier this year a White Paper from the Norwegian Minister of the Environment presented a new, holistic, area-based management plan for the Norwegian part of the Barents Sea, including the Fishery protection zone around Svalbard. The plan will provide guidelines for managing human activities in relation to their use and...
Resource Type:: Research Paper
Full Text:: Portsmouth Proceedings A SPATIAL ECOSYSTEM-BASED MANAGEMENT PLAN OF HUMAN ACTIVITIES IN THE BARENTS SEA

Creator:: McClurg, Tom
Abstract:: Marine ecosystems are generally more extensive and complex than terrestrial ecosystems. Our understanding of the ecological relationships and biological processes within marine ecosystems is rudimentary but improving. In addition, our appreciation of the range of goods and services available from the marine environment and demand for competing economic uses of...
Resource Type:: Research Paper
Full Text:: sophisticated marine ecosystem management. With this quality of management as a goal, some directions for the

Creator:: Mossop, Joanna
Abstract:: Managing fisheries resources according to an ecosystem approach is an idea that emerged from science and ecology and has now found its way into the international regulation of regional and high seas fisheries. Several fisheries agreements now impose an obligation on states to consider the protection of marine ecosystems. The...
Resource Type:: Research Paper
Full Text:: IIFET 2002 Implementing Ecosystem Management in International

Creator:: De Young, Cassandra
Abstract:: The concept of an ecosystem approach to fisheries management (EAF) is reaching a point of general acceptance by those involved in fisheries. There is also growing agreement that fisheries management must incorporate the complicated and often not-well-understood links between human activities and the environment. As a primary goal of an...
Resource Type:: Research Paper
Full Text:: 1 THE HUMAN SIDE OF THE ECOSYSTEM APPROACH TO FISHERIES MANAGEMENT: PRELIMINARY RESULTS OF AN

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