Index Catalog // ScholarsArchive@OSU

Creator:: Sigurdsson, Thorir
Abstract:: After 1950 traditional herring fisheries were revolutionized by a new technique: sonar, power block, larger nets and bigger boats. As a result all major herring stocks in the North East Atlantic Ocean collapsed. The most dramatic decline was that of the Atlanto-Scandian stock between Iceland and Norway from millions of...
Resource Type:: Research Paper

Creator:: Akpalu, Wisdom
Abstract:: Studies on compliance with fishing regulations have looked at fishery crimes for which the offender faces a one-period decision problem of maximizing an expected utility. Moreover, the returns to the crimes are uncertain because the offender may lose them if caught. This paper extends these models by considering a fishery...
Resource Type:: Research Paper
Full Text:: . Consequently we incorporate into the existing model, the influence of dynamic deterrence in which the discount

Creator:: Millan, Joaquin A. and Aldaz, Natalia
Abstract:: This study investigates the adjustment process of labor in the fishing industry of the Spanish regions (Autonomous Communities). The analysis is based on a dynamic model applied to a panel of the 10 coastal regions in Spain for the period covering 1965 to 2001. A translog labor demand equation is...
Resource Type:: Research Paper
Full Text:: regions (Autonomous Communities). The analysis is based on a dynamic model applied to a panel of the 10

Creator:: Rupasinghe, Jagath W. and Kennedy, John O.S.
Abstract:: Key decision variables in aquaculture management are stocking level, feeding schedule, temperature control and batch length. In many management problems with an infinite planning horizon, the aim is to find the batch length which results in maximum return if the same batch length applies to all future batches. This may...
Resource Type:: Research Paper
Full Text:: VARIATIONS: A DYNAMIC PROGRAMMING APPROACH Jagath W. Rupasinghe Department of Fisheries and Aquaculture

Creator:: Grant, Gordon E., Tague, Christina, Safeeq, Mohammad, and Lewis, Sarah
Abstract:: Spatial patterns of summer streamflow in the Cascade Mountains of Oregon vary dramatically between the geologically distinct High and Western Cascade regions. A key control is the partitioning of water input between a fast-draining shallow subsurface flow network (Western Cascades) versus a slow-draining deeper groundwater system (High Cascades). These differences...
Resource Type:: Presentation

Creator:: Laloë, Francis
Abstract:: Fisheries models are generally built to assess the dynamics of a resource with a given fishing mortality which level can be decided by some “decision maker” and/or which can be an observed process, e.g. times series proportional to some observed values of fishing effort. In these cases, the resource dynamics...
Resource Type:: Research Paper
Full Text:: dynamic model. Other components can be added, for example taking into account the trends in fishing

Creator:: Cowen, Robert, Nelson, Walt, Allen, Jonathan, Arbuckle, Scarlett, and Folger, Christina
Abstract:: Stabilization of the Yaquina Bay shoreline along the northeastern edge of the Hatfield Marine Science Center (HMSC) campus became necessary to halt erosion that threatened both HMSC critical infrastructure (seawater storage tank) and public access to the HMSC Nature Trail. A Dynamic Revetment (gravel beach) was installed in November, 2011...
Resource Type:: Technical Report
Full Text:: Hatfield Marine Science Center Dynamic Revetment Project DSL permit # 45455-FP Monitoring Report

Creator:: Kimoto, Ai and Matsuishi, Takashi
Abstract:: Unfortunately, most of the stocks are damaged by natural disasters or human activities and rebuilding the stock are urgent requirements. Until now, in the stock management, some policies are commonly believed to valid but have not been confirmed. A simulation model of the population dynamics incorporating uncertainty has been already...
Resource Type:: Research Paper

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

Creator:: Webster, Janet G., Nelson, Walt, Allan, Jonathan, Stephensen, Shawn, Politano, Vincent, and Folger, Christina
Abstract:: Stabilization of the Yaquina Bay shoreline along the northeastern edge of the Hatfield Marine Science Center (HMSC) campus became necessary to halt erosion that threatened both HMSC critical infrastructure (seawater storage tank) and public access to the HMSC Nature Trail. A Dynamic Revetment (gravel beach) was installed in November, 2011...
Resource Type:: Technical Report
Full Text:: Science Center Dynamic Revetment Project DSL permit # 45455-FP Monitoring Report February, 2013

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