new jersey department of environmental protection  
Water Monitoring & Standards
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Metric 1

Total Number of Fish Species

This metric is simply a measure of the total number of fish species identified from a sample collection.

A reduction of taxonomic richness may indicate a pollution problem (e.g., organic enrichment, toxicity)

and/or physical habitat loss. Fish species with the least tolerance to environmental change, typically

are the first to become absent when water degradation occurs.

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Copyright © State of New Jersey, 1996-2013
Department of Environmental Protection
P. O. Box 402
Trenton, NJ 08625-0402

Last Updated: May 29, 2009

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