نتایج جستجو برای: bioeconomic models

تعداد نتایج: 908293  

2005
William Brock Anastasios Xepapadeas

This paper extends Turing analysis to standard recursive optimal control frameworks in economics and applies it to dynamic bioeconomic problems where the interaction of coupled economic and ecological dynamics under optimal control over space creates (or destroys) spatial heterogeneity. We show how our approach reduces the analysis to a tractable extension of linearization methods applied to th...

Journal: :Earth systems and environment 2021

Abstract The main objective of this work is the study effects high tides and low on fishing effort, catches as well profits in a bioeconomic model populations Sardina pilchardus , Engraulis encrasicolus Xiphias gladius Moroccan areas. To achieve objective, we studied stability equilibrium points our biological then added effect effort which maximizes fishermen under constraint conservation biod...

2014
Hampton Pilling

1 Developing a bioeconomic model for WCPO tuna fisheries to assess potential economic outcomes under alternative management BLOCKINoptions Executive BLOCKINSummary Globally, the value of including economic information in the management of fisheries is being increasingly recognized. For most fisheries, the long‐term maximum economic yield (MEY) that can be achieved occurs at higher biomass level...

Journal: :Frontiers in Marine Science 2021

Climate change is anticipated to have long-term and widespread direct consequences for the European marine ecosystems subsequently fishery sector. Additionally, many socio-economic political factors linked climate scenarios will impact future development of fishing industries. Robust projection modeling bioeconomic on sector must identify all these their potential interaction. In this study, fo...

Journal: :Circular Economy and Sustainability 2021

2002
Martin D. Smith James E. Wilen

Marine biologists have shown virtually unqualified support for managing fisheries with marine reserves, signifying a new resource management paradigm that recognizes the importance of spatial processes in exploited systems. Most modeling of reserves employs simplifying assumptions about the behavior of fishermen in response to spatial closures. We show that realistic depiction of the behavior o...

Journal: :Proceedings of the Royal Society B: Biological Sciences 2005

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی 1387

abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...

Journal: :Bulletin of Mathematical Biology 1992

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