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State of New Jersey Department of Environmental Protection
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Fish Monitoring Sections

 


Bureau of Freshwater & Biological Monitoring

High Gradient Metrics and Scoring

Click on each Metric for Scoring

Metric Ecological Class Response to Stress Scoring
% Rheophilic Species*

Stream Flow

Decrease (Adjusted Value/27.19)*100
% Coldwater & Nontolerant Coolwater Species** Thermal Decrease (Adjusted Value/85.53)*100
% Generalist Feeders* Trophic Increase ((78-Metric Value)(49.62))*100
Tolerance Index Tolerance Increase ((9.32-Metric Value)(4.84))*100
% Lithophilic Spawners* Reproduction Decrease (Metric Value/69.02)*100
% Cyprinidae** Composition Decrease (Adjusted Value/75.29)*100
% Dominant 3 Taxa** Composition Increase ((92.39-Metric Value)(63.46))*100
% Benthic Insectivore Species* Habitat Decrease (Metric Value/37.75)*100

* Proportion of Species

** Proportion of Individuals

"Adjusted Value" - Metric value adjusted for catchment size, click on metric for scoring explanation

 

 

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Last Updated: August 10, 2017