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Water Monitoring & Standards
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Metric 7

Proportion of Individuals as Insectivorous Cyprinids


Like many streams found in North America, cyprinids are the dominant insectivorous fish in

New Jersey (excluding Pineland streams). A shift from specialized invertebrate feeders to

generalists with flexible foraging behaviors often indicates poor conditions associated with

water quality and/or physical habitat degradation (Karr et al. 1986). Similar to the benthic

insectivore metric, insectivorous cyprinids in some instances, may indirectly measure the

effects of toxicity.

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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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