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  Bureau of Freshwater & Biological Monitoring



This table displays and compares assessment ratings for sampling from Rounds 2, 3, and 4 for all five (5) regions (Basins) throughout NJ in which this ambient biological monitoring is conducted. Round 2 data were collected from 1997 to 2001 while Round 3 data were collected from 2002 to 2007. Currently, the table contains the Round 4 results for the Northeast basin, the Northwest basin (Upper Delaware), the Lower Delaware basin (newest, highlighted), the Raritan basin, and the Atlantic basin along with the previously released results. As additional data becomes available, it will be added to this web site.

For comparison purposes, earlier round results have been recalculated using recently adopted genus level multi-metric indices. Round 1 raw data was recorded for each site at the family level, rather than genus level taxonomy. Therefore, assessments could not be accurately recalculated and compared to the genus level multi-metric indices used in subsequent rounds. Because of this, Round 1 assessments were not added to this table. A Standard Operating Procedure is available for all aspects of the AMNET program including a summary of the index development and scoring criteria.

This table contains results only. Summary information is contained in the appropriate basin Summary Reports. The assessment of these results may be found in the NJ Water Quality Monitoring and Assessment reports.

A Key for the Assessment Ratings used in the table below is available. For questions or additional information, please feel free to contact us at 609-292-0427.


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Last Updated: January 16, 2018