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Rationale for Data Collection and Interpretation in the Northern Lakes Long-Term Ecological Research Program / TK. Kratz, JJ. Magnuson, CB. Bowser, TM. Frost

Conference Author
Rationale for Sampling and Interpretation of Ecological Data in the Assessment of Freshwater Ecosystems (1983 : Philadelphia, Pennsylvania)
Physical Description
1 online resource (12 pages) : illustrations, figures, tables
Additional Creators
Bowser, CB., Frost, TM., Kratz, TK., Magnuson, JJ., American Society for Testing and Materials, and ASTM International
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Summary
The Northern Lakes Long-Term Ecological Research Program has three general goals: (1) to detect long-term changes in physical, chemical, and biotic features of lakes, (2) to understand linkages among water and sediment chemistry, hydrology, climate, and biology, and (3) to detect lake features associated with stability and resilience to natural and human disturbance. To accomplish these goals we selected eight northern Wisconsin lakes for semi-intensive study. These lakes lie in the same local groundwater flow system and include oligotrophic, mesotrophic, and dystrophic types. To meet the first goal we have established an ongoing sampling program to provide seasonal or annual estimates of important physical (including light penetration and heat budgets), chemical (including nutrients, pH, alkalinity, and major cations and anions), and biotic (including phytoplankton, zooplankton, macroinvertebrates, and fish) parameters. Frequency and timing of measurements are designed to allow comparisons among lakes, seasons, or years. In addition, we are making long-term comparisons of recent data with those collected from the same lakes by Birge and Juday in the 1930's. To accomplish the second goal we have instituted a series of shorter term, process-oriented studies designed to describe mechanisms of interaction among system parts and to help us refine our sampling protocol. To meet the third goal we are involved in a whole-lake acidification experiment and in ecological studies of invading fish and crayfish.
Dates of Publication and/or Sequential Designation
Volume 1986, Issue 894 (January 1986)
Subject(s)
Other Subject(s)
ISBN
9780803149649 (e-ISBN)
9780803104556
0803104553
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 8.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1986. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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