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Use of sequential sampling of amphipod abundance to classify the biotic integrity of acid-sensitive lakes

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Title: Use of sequential sampling of amphipod abundance to classify the biotic integrity of acid-sensitive lakes
Author: France, Robert
Abstract: A sequential sampling program is described for ubiquitous, cost-effective biomonitoring of the effects of lake acidification. Spring densities of the littoral amphipod Hyalella azteca are quantitatively sorted into 5 abundance categories. Stratification of proportional densities per unit macrophyte biomass in relation to the aqueous total phosphorus concentration is an essential step in the a priori definition of decision criteria. Density rankings were related to lake acidity and to detailed lake-specific information on patterns of Hyalella life history and acid tolerance. Incorporation of Hyalella abundance as a potential metric for the assessment of the biological integrity of acid-sensitive waters is recommended. The temporal integration of transient changes in spring meltwater chemistry is an important rationale for the development of such biomonitoring procedures.
URI: http://hdl.handle.net/10214/15589
Date: 1991
Rights: Queen's Printer for Ontario, Crown Copyright, Non-Commercial Use Permitted
Rights Holder: Queen's Printer for Ontario


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