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Browse History: York River (2013)

Chesapeake Bay - Reporting Region Summary:



  Estuary Selection Map

Scores & Conceptual Diagram


Bay Health Index
Benthic Index of Biotic Integrity Icon
35%
D+
York River: 2013

Poor ecosystem health. Continued improvements in total nitrogen, total phosphorus, dissolved oxygen, and aquatic grasses has led to an increase in the overall score. 


Score Legend
Locator Map
  Index/Indicator Score     Index/Indicator Score
Benthic Index of Biotic Integrity Icon Chlorophyll a
24%
  Benthic Index of Biotic Integrity Icon Aquatic grasses
19%
Benthic Index of Biotic Integrity Icon Dissolved oxygen
80%
  Benthic Index of Biotic Integrity Icon Benthic Index of Biotic Integrity
24%
Benthic Index of Biotic Integrity Icon Water clarity
4%
  Total Nitrogen Icon Total Nitrogen
69%
Total Phosphorus Icon Total Phosphorus
24%
       

Excel Spreadsheet

Dynamic Conceptual Diagram

Editable Vector Diagram (SVG)

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Region Info

The York River watershed drains approximately 2,600 square miles of land. The York River watershed includes all of the area flowing into the Pamunkey and Mattaponi Rivers and their many tributaries. The Pamunkey and Mattaponi rivers begin in the Blue Ridge Mountains and meander through the Piedmont. Major cities in the watershed include Ashland, Gloucester Point, Hampton, and West Point. The census population for 2000 in the watershed was 372,488. Based on information in Dauer, et al., 2005 and The York River and Small Coastal Basins Roundtable.

york_riverconceptual diagram.png

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