Updated – Eutrophication Matrix as of February 2008
| Indicator/State Listed in Above Table |
Specific Indicator |
Priority Indicator Preferences |
Scientifically Valid |
Responsive to Change |
Cause and Effect Link |
Accurate Data Available |
Relevant to Users |
Comparable Regionally |
Useful at Different Scales |
Comparable to Targets, Thresholds, or Standards |
Indicates a Condition (i.e. Not Just A Measurement) |
| Nutrients |
Calculated Nitrogen Load (g/m2/yr) |
Mike Doan, Marilyn ten Brink, Becky Weidman, John Brawley, Jim Latimer preference (5) | Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
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| Calculated Phosphorus Load (g/m2/yr) | Mike Doan, Becky Weidman, John Brawley, Jim Latimer preference (4) | Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
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| Nitrogen Concentration | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||
| Phosphurus Concentration | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||
| Redfied Ratio | Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
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| Water Clarity |
Secchi Depth |
Mike Doan, Marilyn ten Brink, Chris Deacutis, Becky Weidman, John Brawley, Jim Latimer preference (6) | Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
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| Kd (Light extinction) |
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| Total Suspended Solids (TSS) |
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| System Metabolism |
Dissolved Oxygen Concentrations | Mike Doan, Marilyn ten Brink, Jim Latimer, Chris Deacutis preference (4) NOTE: NEEDS TO BE AT AN ADEQUATE FREQUENCY | Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| P/R ratio | |||||||||||
| Phytoplankton | Chlorophyll a Concentration |
Mike Doan, Chris Deacutis, Becky Weidman, John Brawley, Marilyn ten Brink preference (5) | Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Green Algal Type
|
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| Pigment Types |
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| Species Composition/Changes in Food Web |
Nuisance Macroalgae Distribution/Abundance |
Jim Latimer (1) |
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| Species reduction |
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| Number and duration of harmful algal blooms |
Yes |
Yes |
Yes? |
Yes |
Yes |
Yes |
No |
Yes |
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| Submerged Aquatic Vegetation Distribution & Abundance – Aquatic Habitat Indicator | |||||||||||
Submerged Aquatic Vegetation Health
|
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| Foraminifera taxa makeup |
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| Diatom taxa makeup |
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| Dinoflagellate makeup |
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| Macro-invertebrate taxa makeup (NCA) – Contaminant Indicator |
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| BHQ – state (coupled sediment-organism indicator |