Description: Das Projekt "Wasserqualitaet: Entwicklung eines Satzes Biomarker als Instrument zur Bewertung der Wasserqualitaet" wird vom Umweltbundesamt gefördert und von Universität Bern, Zentrum für Fisch- und Wildtiermedizin, Institut für Tierpathologie durchgeführt. The pollution of the environment also causes problems in water systems. The existing waste water protection plants are often overcharged. Although chemical analyses of river systems achieve the legislative conditions, many of the rivers showed decreased fish populations. Thus, to avoid damage to man and the environment, the control of these effluents is necessary as well as the effective recording of the environmental pollution. Even if much effort was made in the last years, many basic questions of how organisms react on environmental pollutants and what the causes for their reactions are, are still open. Our general project consists of two parts: In the first part, expositions and field studies are performed to test several biomarker in fish exposed in a river system. This studies are already underway. In the second part, we focus our attention to the fish epidermis as one potential target organ. For this, we develop an in vitro system of cultured fish epidermis which enables us to study pathogenetic mechanisms of pollutant-induced injury or influence on the organnisms defense mechanisms. With this proposal, we apply for funding of the second part only. In summary, the proposed project provides a comprehensive approach to determine the effects of chronic, subtoxic water pollution on the ecosystem using the fish as an indicator organism. By determination of alterations in cellular functions of a living organism, a highly sensitive monitoring system will allow detection of sublethal imbalances of the ecosystem. Leading Questions: Is the epidermis of fish a valuable indicator organ to assess water quality? Which are the most important physiological and biochemical parameters which change specifically under inadequate environmental influences and, therefore, may serve as biomarkers? Is a primary epidermis culture of fish a useful model to study pathogenetic mechanisms triggered by pollutants and adverse environmental conditions?
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Flusssystem ? Fisch ? Fluss ? Biomarker ? Fischbestand ? Fließgewässer ? Gewässerbelastung ? Tracer ? Umweltauswirkung ? Zoopathologie ? Altanlage ? Chemische Analyse ? Fischtest ? Fischzucht ? Gewässerüberwachung ? Gewässerverunreinigung ? Schadensvermeidung ? in vitro ? Gesetzgebung ? Biotest ? Exposition ? Haut ? Monitoring ? Aquatisches Ökosystem ? Feldstudie ? Studie ? Testorganismus ? Umweltmodell ? Umweltverschmutzung ? Pathogenität ? Wasserqualität ? Wassergefährdende Stoffe ? Wasserverschmutzung ? Gewässerschutz ? Abwasser ? Wasser ? Bioindikator ? Ökosystemfunktion ? Kenngröße ? Ökosystem ? Organ ? Organismen ? Population ? Finanzierung ? apoptosis ? pathogenetic mechanism ? Subtoxische-Verunreinigung ? usp ? waterquality ? in vitro system ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1996-04-01 - 1999-03-31
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