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DETERMINATION OF THE BIOLOGICALLY RELEVANT SAMPLING DEPTH FOR TERRESTRIAL AND AQUATIC ECOLOGICAL RISK ASSESSMENTS
Kravitz, M. and R.H. Anderson.
EPA 600-R-15-176, ERASC-015F, 75 pp, 2015
Based upon an extensive review of ecological literature, this report attempts to provide defensible approximations for identification of the depth of the biotic zone in soils and sediments. Actual sampling depths may be modified by the assessor based on the purpose of the assessment. The primary audience for this document is Superfund staff and contractors and ecological risk assessors. The methods used in this study differ somewhat between Part 1 (Terrestrial Biotic Zone) and Part 2 (Aquatic Biotic Zone). In Part 1, biological activity was quantified in forests and grasslands as a function of depth across selected metrics. In Part 2, the reviewers based the biotic zone(s) in various habitats on the 80th percentile of abundance or on biomass depth distributions. http://cfpub.epa.gov/ncea/erasc/recordisplay.cfm?deid=310058
EPA 600-R-15-176, ERASC-015F, 75 pp, 2015
Based upon an extensive review of ecological literature, this report attempts to provide defensible approximations for identification of the depth of the biotic zone in soils and sediments. Actual sampling depths may be modified by the assessor based on the purpose of the assessment. The primary audience for this document is Superfund staff and contractors and ecological risk assessors. The methods used in this study differ somewhat between Part 1 (Terrestrial Biotic Zone) and Part 2 (Aquatic Biotic Zone). In Part 1, biological activity was quantified in forests and grasslands as a function of depth across selected metrics. In Part 2, the reviewers based the biotic zone(s) in various habitats on the 80th percentile of abundance or on biomass depth distributions. http://cfpub.epa.gov/ncea/erasc/recordisplay.cfm?deid=310058
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