Bringing together recent advances in the research into the ecology and biology of brown and sea trouth, this book places them in their ecological setting and shows how an understanding of their biology and environment aids efficient management of both fish stocks and the surroundings. In particular, it concentrates on the management of the fish in natural flowing waters, and discusses issues such as how to determine an efficient feeding strategy and the influence of hatchery stocks upon wild populations. A detailed case study focusing on the French experience is of especial interest. Biology and Ecology of the Brown Sea Trout synthesizes the considerable body of research available and provides a significant tool for the better management and conservation of these important fish.

This book contains a collection of 24 state-of-the-art contributions in the area of Information Systems Engineering. It was compiled as a tribute to Professor Janis Bubenko on the occasion of his retirement from the University of Stockholm in February 2000. The contributions are arranged in three sections: - Information Society, with such subjects as B2B E-Commerce, human imperfection, stream data management and enterprise modeling - Approaches to Information Systems Engineering, discussing data warehouse development, web-enabled methods, reuse, and meta-data - Concepts for Information Systems, on more fundamental notions such as time, abstraction, co-operation, intention and information All the contributors are well-known and highly reputed scholars in the area of Information Systems Engineering from all over the world.