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KRIS Humboldt Bay: Chart Page

Area Basin-wide/Regional
Topic Aquatic Insects: Richness Index Humboldt Bay Locations 1994-98
Caption:  This chart shows the number of species or taxa richness, which is also termed the Richness index for all Humboldt Bay tributary sampling locations for all years sampled. Harrington (1999) characterized healthy communities as having more than 36 species, while those with fewer than 26 species fall within the range of impaired. Click on the Picture tab to see a map of relative monitoring locations. Data were collected by PALCO. See Info Links for more information on using aquatic insects as indicators.

To learn more about this topic click Info Links .
To view additional information (data source, aquisition date etc.) about this page, click Metadata .
To view the table with the chart's data, click Chart Table web page.
To download the table with the chart's data, click richness_hb_all_94_98.dbf (size 1,696 bytes)
To download the table with the chart's data as an Excel spreadsheet, click richness_hb_all_94_98.dbf.xls (size 6,144 bytes) .