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State of New Jersey Department of Environmental Protection
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Fish Monitoring Sections

 


Bureau of Freshwater & Biological Monitoring

Headwaters High Gradient Metrics and Scoring

Click on each Metric for Scoring Explanation

Metric Ecological Class Response to Stress Scoring
Intolerant Vertebrate Richness

Richness

Decrease (Metric/3)*100
Proportion of Vertebrate Richness as Top Carnivores Trophic Decrease (Metric/38)*100
% Tolerant Fish Individuals Tolerance Increase (96.1-Metric)/(96.1)*100
Proportion of Total Richness as Native Non-Native Decrease (Metric/100)*100
% Native Crayfish Composition Decrease (Metric/100)*100
Brook Trout Density Composition/Indicator Species Decrease (# Brook trout/100m2÷10.1)*100

 

 

 

 

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Last Updated: August 10, 2017