Dresden 2003 – scientific programme

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AKSOE: Physik sozio-ökonomischer Systeme

AKSOE 9: Soziale Systeme und Entscheidungsmodelle

AKSOE 9.3: Talk

Thursday, March 27, 2003, 10:30–11:00, BAR/205

Conflict Resolution, Management and Decision-Making for Sustainable Fisheries: A Qualitative Multi-Agent Approach to Viable Control — •Jürgen Kropp, Klaus Eisenack, and Jürgen Scheffran — Potsdam Institute for Climate Impact Research

The last decade has seen growing concern on the sustainable utilization of living marine resources. The absence or failure of adequate management has lead to the situation that more than 70% of the world’s fish resources are heavily exploited or overexploited.

In our paper we analyse fisheries, including their institutionalised management frameworks from a dynamic multi-agent perspective. To tackle this challenge our novel approach integrates dynamical evolving interactions between economic, environmental and political subsystems assessing viability and sustainability of mangement frameworks. The treatment of the systems parts is facilitated by means of qualitative differential equations, clustering state space into regions of qualitative change. In the model the economic sphere is represented by relevant agents (producers) which interfere with the natural environment (harvest). The human impact is a function of the state of the environment, human efforts and their efficiency which is shaped by technology (catch rate). The third sphere, describing political actors, can interfere via control and management strategies, but has taken lobby pressure into account. By use of dynamic game strategies, we study the impact of integrated approaches for viable and sustainable resource management on environmental conservation that minimizes control complexity via critical couplings, including legal and economic instruments, social and technical measures.