Results 221 to 230 of about 283,808 (265)
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Ecology and ecological quality of fish in lakes and reservoirs

Fisheries Research, 2016
Abstract The conference ‘Ecology of Fish in Lakes and Reservoirs’ (ECOFIL 2014) was held in September 2014 in Ceske Budĕjovice, Czech Republic. More than 110 lectures and posters presented during the meeting documented rapid methodological developments in freshwater fisheries science and recent advances of studies of biotic integrity and quality of ...
Jan Kubečka   +8 more
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The Need of an Ecological Quality-Concept

Environmental Monitoring and Assessment, 1983
Quality assessments with respect to our environment are done in many different ways. Generally these assessments are connected with functions which the environment has to accomplish for man. These are partial approaches in which some characteristics are selected from the complex reality.
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Ecological perspective on water quality goals

Environmental Management, 1981
The central assumption of nonpoint source pollution control efforts in agricultural watersheds is that traditional erosion control programs are sufficient to insure high quality water resources. We outline the inadequacies of that assumption, especially as they relate to the goal of attaining ecological integrity.
James R. Karr, Daniel R. Dudley
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Ecological quality assessment of the lower Lima Estuary

Marine Pollution Bulletin, 2010
Monitoring biotic factors is gaining in importance within Europe, due in large extent to the ecological approach of the European Water Framework Directive (WFD) and the importance attributed to biological elements in the assessment of quality status. Despite its ecological importance, the Lima Estuary is subjected to a range of perturbations, including
Dias, Sérgia Costa   +2 more
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Visual ecology: exploring the relationships between ecological quality and aesthetic preference

Landscape and Ecological Engineering, 2016
High ecological quality and an attractive environment are usually two primary goals of landscape design. Understanding the relationships between ecological quality and visual aesthetic preference is needed to reach the two goals simultaneously. However, previous work has not provided definite answers regards these relationships.
Jingwei Zhao   +4 more
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Systemic and Ecological Qualities of Families

2013
Systems theory and its offspring family systems theory have evolved and matured over the course of some 4 decades. The developmental history of family systems theory has been rich. If a theory is judged by its utility, or as Kuhn (1962) proposed, by the number of adherents it wins in the scientific community, then family systems theory has accomplished
Stephen A. Anderson   +2 more
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Extrapolation methods for setting ecological standards for water quality: statistical and ecological concerns

Ecotoxicology, 1993
: Extrapolation methods form the basis for most recent techniques used to set 'safe' levels of toxicants for ecosystems. Most methods use information from several single species toxicity tests to predict safety factors for protecting all species in all communities in a nation or group of nations.
E P, Smith, J, Cairns
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DEFINING AND ASSESSING ECOLOGICAL INTEGRITY: BEYOND WATER QUALITY

Environmental Toxicology and Chemistry, 1993
Abstract Emphasis in environmental protection is shifting from primary attention to human health to a more balanced consideration of human and ecological health. This shift provides opportunities and challenges to the scientific community.
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ECOLOGICAL QUALITY OF KARAVASTA LAGOON (ALBANIA)

2009
The ecological quality of the Karavasta lagoon (Albania) was assessed using three benthic index proposed within the WFD. The relationship between macrobenthic community structure and composition, and sediment and water parameters was also investigated.
MUNARI, Cristina, MISTRI, Michele
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