This vol ume contains the proceedings of the second U. S. -Austral ia workshop on Renewable Resource Management held at the East-West Center, Honolulu, Hawaii, December 9-12, 1985. The workshop was jointly sponsored by the National Science Foundation (USA) and the Department of Science and Technology (Austral ia) under the U. S. -Austral ia Cooperative Science Program. The objective of the workshop was to focus on problems associated with the management of renewable resource systems. A particular emphasis was given to methods for handling uncertain elements whieh are present in any real system. Toward this end, the partiei pants were chosen so that the collective expertise included mathematical modeling, dynamical control/game theory, ecology, and practical management of real systems. Each participant was invited to give an informal presentation in his field of expertise as related to the overall theme. The formal papers (contained in this vo 1 ume) were written after the workshop so that the authors coul d util ize the workshop experience in relating their own work to others. To further encourage this exchange, each paper contained in this volume was reviewed by two other participants who then wrote formal comments. These comments (with author's reply in some cases) are attached to the end of each paper.

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I Modelling/Biology.- Scale and Predictability in Ecological Modeling.- Behavioral Modelling and Resource Management.- Modeling for Biological Resource Management.- Optimal Harvest Policies for Fisheries with Uncertain Stock Sizes.- Analysis of Environmental Influences on Population Dynamics.- Identification and Control of Stochastic Linear Multispecies Ecosystem Models.- An Evolutionary Response to Harvesting.- Density-Dependent Habitat Selection: A Tool for More Effective Population Management.- II Controls/Techniques.- Approaches to Adaptive Policy Design for Harvest Management.- Computer-Intensive Methods for Fisheries Stock Assessment.- Variability in Ecosystem Models: A Deterministic Approach.- Generating Reachable Set Boundaries for Discrete-Time Systems.- Uncertain Dynamical Systems: An Application to River Pollution Control.- Real Time Management of a Resource Consumption Model.- Control Problems in Irrigation Management.- A Differential Game Between Two Players Harvesting from a Divided fishery.- III Management/Real Problems.- Groundwater-Based Agriculture in the Arid American West: Modeling the Transition to a Steady-State Renewable Resource Economy.- Great Lakes Fisheries: Are Explicit Controls Necessary?.- Sampling Highly Aggregated Populations with Application to California Sardine-Management.- The Structure of Fishing Systems and the Implementation of Management Policy.- Spatial Models of Tuna Dynamics in the Western Pacific: Is International Management Necessary?.- Examination of Institutional Structures in Multiple Resource, Multiple Management Systems: A Control Theoretic Approach.- Optimal Harvesting of a Year-Class of Prawns.