Integration of Ecology in Coastal Engineering

Abstract

This article aims at a brief evaluation of the ECEP-symposium from the viewpoint of ecology. From this viewpoint first of all the importance of coastal zones, and more especially estuaries for man and other life is emphasized. Trial and error in coastal engineering and coastal management is illustrated with some examples derived from the papers of this symposium. On the basis of some rough cost/benefit calculations it becomes clear that without integration of ecological aspects, from the beginning to the end, expensive and unforseen additional expenditures may result with costs comparable or even many times higher than the original project costs. Attention is focussed on the lessons to be learned from the papers. The major observations are briefly classified in order of importance. The main conclusion is first of all to handle carefully the integrity of coastal environments, with special attention for estuaries, and to find solutions for society's problems and wishes without disrupting modifications or transformations. But in doing so the process of change requires a close control in terms of planned modification or transformation, an integral ecosystem approach and an adaptive environmental management strategy. In this relation a new management and design strategy is proposed, with the recognition that we are dealing with a process. It is an open ended strategy which requires adaption to new unforeseen events in decision making or in (new) environments. In conclusion a number of statements are presented.