caa a22 4500 469106301 CHVBK 20180323133057.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF00044173 doi (NATIONALLICENCE)springer-10.1007/BF00044173 Kratzberg Gail Water Resources Branch, Ontario Ministry of the Environment, 40 St. Clair Ave. W., M4V 1M2, Toronto, Ontario, Canada aut Ecosystem health as measured from the molecular to the community level of organization, with reference to sediment bioassessment [Elektronische Daten] [Gail Kratzberg] The current recognition that chemical measurements are uncertain indicators of biological consequences of pollution has shifted the emphasis away from assessing environmental chemistry alone toward the inclusion of measurements of the health of organisms. Effects of pollutants begin with the individual, have subsequent repercussions on population level processes, and ramifications for community structure and functions. Pollutants act at a molecular level and the biochemical lesions is the first step in the manifestation of effects. Technologies that operate at the cellular level assist in elucidating toxicity. Higher levels of integration include an organism's capacity for growth. Laboratory bioassays andin situ research can monitor physiological incapacities and assist in predicting population level effects. A yet higher level of organization is that of the ecological community. Kluwer Academic Publishers, 1992 sediment bioassays nationallicence chronic toxicity nationallicence biomarkers nationallicence sediment bioassessment nationallicence Journal of Aquatic Ecosystem Health Kluwer Academic Publishers 1/4(1992-12-01), 319-328 0925-1014 1:4<319 1992 1 10813 https://doi.org/10.1007/BF00044173 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00044173 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kratzberg Gail Water Resources Branch, Ontario Ministry of the Environment, 40 St. Clair Ave. W., M4V 1M2, Toronto, Ontario, Canada aut NATIONALLICENCE 773 0- Journal of Aquatic Ecosystem Health Kluwer Academic Publishers 1/4(1992-12-01), 319-328 0925-1014 1:4<319 1992 1 10813 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer