Principles and Methods for Determining Ecological Criteria on Hydrobiocenoses is a collection of papers presented at the 1975 European Scientific Colloquium on Principles and Methods for Determining Ecological Criteria on Hydrobiocenoses, held in Luxembourg. This Colloquium aims to define a scientific basis for assessing the results of pollution on aquatic fauna and flora, as well as the biological methods to be used in assessing the extent of such pollution.This book is organized into four parts encompassing 29 chapters. After a brief overview of a series of parameters for the specific uses of different water classifications and regional evaluation of water pollution, this book goes on examining the ecological consequences of water pollution establishment of criteria and the ecological variable and their effect on aquatic fauna. These topics are followed by a discussion of the value of aquatic plants in water quality characterization, as well as the principles of the methods used. The succeeding parts highlight the concepts and practical methods used in the biological monitoring of surface waters. These parts particularly consider the benefits of using bioindicators and laboratory bioassays. The concluding discusses a comparative study of biological-ecological water assessment methods of water quality.This book will be of value to environmental scientists, engineers, and researchers.

Editorial NoteOpening Session Esposto Di Apertur Introductory Report Expose Introductif Introductory Report Opening AddressEcological Consequences of Water Pollution Establisment of Criteria (Dose/Effect) Determinants in Freshwater Ecosystems and Man-modifiable Factors Inducing Change in Hydrobiocenoses Sintesi delle disoussioni avvenute dopo la comunicazione di H.A. Hawkes Summary of the Discussion following the Presentation of the Paper by H.A. Hawkes Variabili ecologiche e loro effetto sulla fauna acquatica Ecological Variables and their Effect on Aquatic Fauna Summary of the Discussion following the Presentation of the Paper Intérêt des végétaux aquatiques dans la caractérisation de la qualité des eaux et principes des méthodes utilisées Value of Aquatic Plants in the Characterization of Water Quality and Principles of the Methods Used Summary of the Discussion following the Presentation of the PaperGeneral Principles of the Biological Monitoring of Surface Waters Principes fondamentaux pour la détermination de critères écologiques relatifs aux biocénoses d'eau courante Basic Principles for the Determination of Ecological Criteria for Hydrobiocenoses of Running Water Summary of the Discussion following the Presentation of the Paper The Tolerance of Aquatic Life to Chemical Pollution and the Idea of Ecological Limits in the Management of International Rivers Summary of the Discussion Following the Presentation of the PaperThe Practical Methods Used in the Biological Monitoring of Surface Waters Biological Monitoring of Rivers in the Community Comparative Study of Biological Water Assessment Methods - Practical Demonstration on the River Main Summary of the Discussion Following the Presentation of the Papers Active Surveillance and Use of Bioindicators Relations entre essais biologiques en laboratoire et expériences in situ Relationship between Laboratory Bioassays and in situ Experiments Summary of the Discussion following the Presentation of the Papers General Discussion (Summary) Rapport De Synthese Et Conclusions Conclusions List of ParticipantsAnnexes I. Comparison of Biological Procedures for Assessment of Water Quality; A Comparative Study pf Water Assesment Methods - Practical Demonstration on the River Main, Federal Republic Germany II. A Systems of Tests for the Assessment of Potential Effects of Chemicals and Quality Data in the Aquatic Environment III. Environmental Protection Terminology Extract from the Official Journal of the European Communities, Vol. 16, No. C112, 20-12-73