scholarly journals Pollution-induced community tolerance (PICT): towards an ecologically relevant risk assessment of chemicals in aquatic systems

2015 ◽  
Vol 61 (12) ◽  
pp. 2141-2151 ◽  
Author(s):  
Ahmed Tlili ◽  
Annette Berard ◽  
Hans Blanck ◽  
Agnes Bouchez ◽  
Fernanda Cássio ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Aquatic Systems ◽  
Community Tolerance

Ecological risk to aquatic systems from salinity increases

2003 ◽  
Vol 51 (6) ◽  
pp. 689 ◽  
Author(s):  
Barry T. Hart ◽  
P. S. Lake ◽  
J. Angus Webb ◽  
Michael R. Grace
Keyword(s):  
Risk Assessment ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
Agricultural Land ◽  
Probabilistic Approach ◽  
Assessment Method ◽  
Ecological Condition ◽  
Aquatic Systems ◽  
Terrestrial Environment ◽  
Assessment Approach

Salinity is a major problem in many regions of Australia, and is predicted to get considerably worse over the next 30–50 years. Most effort has focused on the terrestrial environment, and specifically on the loss of productive agricultural land. Increased salinity can also result in unwanted changes to aquatic ecosystems in rivers, streams and particularly wetlands.This paper first reviews the importance of assessing risks from salinity increases in a catchment context, and then introduces a disturbance–response conceptual model to assist with the understanding of such situations. Two factors are shown to be particularly important in assessing which freshwater systems will be most susceptible to increases in salinity—the location of the systems in the landscape, and the current ecological condition of the system. The resilience of an ecosystem to salinity disturbances is shown to be a useful concept which with further knowledge may be incorporated into risk-assessment approaches.The development of a new ecological risk assessment approach for assessing risks to aquatic systems in the Goulburn–Broken catchment from increases in salinity over the medium (20 years) and long (100 years) term is reported. The risks to the biota in Hughes Creek, a tributary of the Goulburn River, are assessed by using a probabilistic approach. Current salinity levels in the creek present a low risk to the biota.Finally, the paper addresses the challenge of making the ecological risk assessment method more quantitative by discussing the following two key aspects: how to better quantify the linkages between the key stressors and the biotic components, and how to better handle uncertainties.

Pollution-Induced Community Tolerance To Diagnose Hazardous Chemicals in Multiple Contaminated Aquatic Systems

2015 ◽  
Vol 49 (16) ◽  
pp. 10048-10056 ◽  
Author(s):  
Stefanie Rotter ◽  
Roman Gunold ◽  
Sibylle Mothes ◽  
Albrecht Paschke ◽  
Werner Brack ◽  
...  
Keyword(s):  
Aquatic Systems ◽  
Hazardous Chemicals ◽  
Community Tolerance

Large-Scale Risk Assessment of Acid Rain Impacts on Fisheries: Models and Lessons

1986 ◽  
Vol 43 (4) ◽  
pp. 900-921 ◽  
Author(s):  
C. K. Minns ◽  
J. R. M. Kelso ◽  
M. G. Johnson
Keyword(s):  
Risk Assessment ◽  
Resource Management ◽  
Acid Rain ◽  
Survey Data ◽  
Fish Species ◽  
Large Scale ◽  
Emission Control ◽  
Aquatic Systems ◽  
The World

Lakes, streams, and their watersheds in large parts of the world have little ability to neutralize acidity associated with precipitation. Resource management agencies are concerned with the extent of these impacts including the loss/hazard to key fish species, and the likely status of these aquatic systems given alternate emission control scenarios. Two models designed to provide such a large-scale risk assessment are presented herein. The strengths and weaknesses are identified. Since models draw together the best of our theories, experimental, and survey data, these are compared with existing knowledge, theories, and data.

Procedure to select test organisms for environmental risk assessment of genetically modified crops in aquatic systems

2017 ◽  
Vol 13 (6) ◽  
pp. 974-979 ◽  
Author(s):  
Angelika Hilbeck ◽  
Rebecca Bundschuh ◽  
Mirco Bundschuh ◽  
Frieder Hofmann ◽  
Bernadette Oehen ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Genetically Modified ◽  
Genetically Modified Crops ◽  
Aquatic Systems ◽  
Test Organisms
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