Browse History: James River (2006)

Reporting Region Summary:



  Estuary Selection Map

Scores & Conceptual Diagram


Benthic Index of Biotic Integrity Icon
Bay Health Index  
45%
C

Top-ranked grade: C
  • Second best Water Quality Index due to very good dissolved oxygen and moderate chlorophyll a scores.
  • Very poor phytoplankton community score and moderate benthic community score.

Score Legend
Locator Map
  Index/Indicator Score     Index/Indicator Score
Benthic Index of Biotic Integrity Icon Chlorophyll a
53%
  Benthic Index of Biotic Integrity Icon Aquatic grasses
35%
Benthic Index of Biotic Integrity Icon Dissolved oxygen
98%
  Benthic Index of Biotic Integrity Icon Benthic Index of Biotic Integrity
46%
Benthic Index of Biotic Integrity Icon Water clarity
3%
  Benthic Index of Biotic Integrity Icon Phytoplankton Index of Biotic Integrity
33%
 
Benthic Index of Biotic Integrity Icon Water Quality Index
52%
  Biotic Index Icon Biotic Index
38%
 
Excel Spreadsheet

Dynamic Conceptual Diagram

Editable Vector Diagram (SVG)

Maps

This indicator map is already zoomed to the area of this region. You can pan and zoom and also change to another indicator map.


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Trends Graph

This graph is dynamic, you can check and uncheck indicators ( checkboxes in legend), select year range ( click and drag), and export as an image (right click).


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Excel Spreadsheet

Region Info

The James River watershed drains approximately 10,000 square miles of land. The river begins in the Allegheny Mountains, where it is formed by the confluence of the Jackson and Cowpasture Rivers and flows approximately 340 miles to the Chesapeake Bay. Sub-tributaries include the Appomattox, Chickahominy, and Elizabeth Rivers. Land use within the watershed is predominantly forest, with agriculture/farming accounting for approximately one-fifth of land use. Major cities in the watershed include Richmond and Hampton Roads. The census population for 2000 in the watershed was over 2,500,000 people. Based on information in Dauer, et al., 2005 (http://www.deq.virginia.gov/bay/) and the James River Association.

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