Aquatic Ecosystem Health and Management Society
نویسندگان
چکیده
منابع مشابه
Protecting aquatic ecosystem health : are water quality objective realistic ?
Many regulatory authorities set water quality objectives or thresholds based on nutrient concentrations to safeguard aquatic ecosystem health. But do these criteria adequately assess the biological and ecological status? Our research has been focussing on the performance of constructed wetlands for water quality improvement and ecosystem health. In this paper we present data on macroinvertebrat...
متن کاملAquatic ecosystem assessment using exergy
The recent work is dedicated to the study of behaviour of exergy and structural exergy in physical models of aquatic ecosystems—mesocosms and microcosms and in Lake Baikal. The results of field experiments with mesocosms on Lake Baikal, containing natural plankton assemblage, and laboratory experiments with microcosms containing Daphnia magna and Chlorella vulgaris demonstrated decrease of the ...
متن کاملMeasuring Complexity in an Aquatic Ecosystem
We apply formal measures of emergence, self-organization, homeostasis, autopoiesis and complexity to an aquatic ecosystem; in particular to the physiochemical component of an Arctic lake. These measures are based on information theory. Variables with an homogeneous distribution have higher values of emergence, while variables with a more heterogeneous distribution have a higher self-organizatio...
متن کاملA model for an aquatic ecosystem
An ecosystem made of nutrients, plants, detritus and dissolved oxygen is presented. Its equilibria are established. Sufficient conditions for the existence of the coexistence equilibrium are derived and its feasibility is discussed in every detail.
متن کاملAssessment of aquatic environmental quality using gyrodactylus sp. as a living probe: parasitic biomonitoring of ecosystem health
Biological indicators are species that can be employed to monitor environmental quality and ecosystem health. Different groups of organisms such as plants, animals, bacteria and parasites regularly produce certain molecular signal in response to changes in their environmental milieu. Parasites are important tools for providing wealth of information on physicochemical quality, environmental stre...
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ژورنال
عنوان ژورنال: Umweltwissenschaften und Schadstoff-Forschung
سال: 1990
ISSN: 0934-3504,1865-5084
DOI: 10.1007/bf03039388