US Long-Term Ecological Research Network

Biocomplexity Project: Water Color

Sample Collection:
  • Samples are surface water, filtered in the field through 0.45u nuclepore membrane filters into 125-ml poly bottles. The minimum amount needed is about 60 ml; if filtering is easy, fill the bottles to allow for the possibility of running duplicate scans. Biocomplexity color samples are collected once each summer, during the water chemistry sampling for each lake. Store samples cold and dark, then allow them to warm to room temperature just before running the scans.
 
Analysis
  • Turn on spec and allow to wa

Lake Metabolism

Study sites
We sampled surface waters of 31 lakes in the Northern Highland Lake district of Wisconsin and the Upper Peninsula of Michigan during July and August of 2000 (Table 1). The lakes were chosen to span wide and orthogonal ranges in DOC and TP concentrations and for their close proximity to the Trout Lake Station in Vilas county, Wisconsin. The order in which the lakes were sampled was randomized.

Water Color Scans

Sample Collection
The samples are surface water, filtered in the field through 0.45u polycarbonate filters into 125ml poly bottles.  The minimum amount needed is about 60ml; if filtering is easy, fill the bottles to allow for the possibility of running duplicate scans.  Color samples are collected four times per year, during the quarterly chemistry sampling weeks.  Quarterly sample dates include February under ice, spring mixis, August stratification, and fall mixis.  Store samples cold and dark, then allow them to warm to room temperature just before running the sca
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