Classification of Ecological Status of Lakes and Rivers PDF Download

Author: Saara Bäck
Publisher: Nordic Council of Ministers
ISBN: 9789289307031
Category : Biodiversity
Languages : en
Pages : 100

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Publisher: Nordic Council of Ministers
ISBN: 9789289308243
Category : Lakes
Languages : en
Pages : 140

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Author: P.D. Armitage
Publisher: Springer Science & Business Media
ISBN: 9401107157
Category : Science
Languages : en
Pages : 579

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The dipteran family Chironomidae is the most widely distributed and frequently the most abundant group of insects in freshwater, with rep resentatives in both terrestrial and marine environments. A very wide range of gradients of temperature, pH, oxygen concentration, salinity, current velocity, depth, productivity, altitude and latitude have been exploited, by at least some chironomid species, and in grossly polluted environments chironomids may be the only insects present. The ability to exist in such a wide range of conditions has been achieved largely by behavioural and physiological adaptations with relatively slight morphological changes. It has been estimated that the number of species world-wide may be as high as 15000. This high species diversity has been attributed to the antiquity of the family, relatively low vagility leading to isolation, and evolutionary plasticity. In many aquatic ecosystems the number of chironomid species present may account for at least 50% of the total macroinvertebrate species recorded. This species richness, wide distribution and tolerance to adverse conditions has meant that the group is frequently recorded in ecological studies but taxonomic difficulties have in the past prevented non-specialist identification beyond family or subfamily level. Recent works, including genetic studies, have meant that the family is receiving much more attention globally.

Author: Erik Jeppesen
Publisher: Springer Science & Business Media
ISBN: 1461206952
Category : Science
Languages : en
Pages : 442

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The rapid growth of the discipline of aquatic ecology has been driven both by scientific interest in the complexities of aquatic ecosystems and by their enormous environmental importance and sensitivity. This book focuses on the remarkably diverse roles played by underwater plants, and is divided into three parts: 10 thematic chapters, followed by 18 case studies, and rounded off by three integrative chapters. The topics range from macrophytes as fish food to macrophytes as mollusc and microbe habitat, making this of interest to aquatic ecologists as well as limnologists, ecosystem ecologists, microbial ecologists, fish biologists, and environmental managers.

Author: Mike T. Furse
Publisher: Springer Science & Business Media
ISBN: 1402054939
Category : Science
Languages : en
Pages : 544

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The monitoring of benthic diatoms, macrophytes, macroinvertebrates and fish will be the backbone of future water management in Europe. This book describes and compares the relevant methodologies and tools, based on a large data set covering rivers in most parts of Europe. The 36 articles presented will provide scientists and water managers with a unique insight into background and application of state-of-the-art monitoring tools and techniques.

Author:
Publisher:
ISBN: 9789289456142
Category :
Languages : en
Pages : 87

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This document, produced by Working Group 2.3 REFCOND, aims at guiding experts and stakeholders in the implementation of Directive 2000/60/EC establishing a framework for Community action in the field of water policy (the water framework directive). It focuses on the implementation of the Annexes II and V with special emphasis on inland surface waters and methods and principles for the establishment of reference conditions and class boundaries between high, good and moderate ecological status. The guidance will be useful for: establishing reference conditions and ecological status class boundaries for inland surface waters, and participating in the process as a stakeholder; leading and managing experts undertaking the ecological status analysis; using the results of the ecological status analysis for taking part to the policy making process; or reporting on the ecological status analysis to the European Union as required by the directive.

Author: Thibault Datry
Publisher: Academic Press
ISBN: 0128039043
Category : Science
Languages : en
Pages : 624

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Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. - Provides up-to-date reviews of research findings and management strategies using international examples - Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach - Reveals the relevance of this scientific understanding to managers and policymakers

Author: Nordic Council of Ministers
Publisher: Nordic Council of Ministers
ISBN: 9789289306676
Category : Aquatic ecology
Languages : en
Pages : 86

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Author: Brian A. Whitton
Publisher: Univ of California Press
ISBN: 9780520030169
Category : Nature
Languages : en
Pages : 744

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Author:
Publisher:
ISBN: 9789279929687
Category :
Languages : en
Pages :

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The European Water Framework Directive (WFD) requires the national classifications of good ecological status to be harmonised through an intercalibration exercise. In this exercise, significant differences in status classification among Member States are harmonized by comparing and, if necessary, adjusting the good status boundaries of the national assessment methods. Intercalibration is performed for rivers, lakes, coastal and transitional waters, focusing on selected types of water bodies (intercalibration types), anthropogenic pressures and Biological Quality Elements. Intercalibration exercises were carried out in Geographical Intercalibration Groups - larger geographical units including Member States with similar water body types - and followed the procedure described in the WFD Common Implementation Strategy Guidance document on the intercalibration process (European Commission, 2011). The Technical reports are organized in volumes according to the water category (rivers, lakes, coastal and transitional waters), Biological Quality Element and Geographical Intercalibration group. This volume addresses the intercalibration of the Eastern Continental Lake GIG macrophyte ecological assessment methods. Three countries (Bulgaria, Hungary, Romania) participated in the intercalibration exercise and harmonised their lake macrophyte systems. The results were approved by the WG ECOSTAT and included in the EC Decision on intercalibration (European Commission, 2018).