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Browse History: Overall Bay (2013)

Chesapeake Bay - Reporting Region Summary:



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Scores & Conceptual Diagram


Bay Health Index
Benthic Index of Biotic Integrity Icon
45%
C
Overall Bay: 2013

Moderate ecosystem health. Overall, Chesapeake Bay scored a 45%, a C, which is almost the exact same score as last year even though there was a lot more rain. Water clarity in the Bay is declining; the amount of chlorophyll in the water was also higher, which added to the murkier water conditions. The indicator with the most improvement was aquatic grasses, largely due to increases of wigeon grass or Ruppia.

Score Legend
Locator Map
  Index/Indicator Score     Index/Indicator Score
Benthic Index of Biotic Integrity Icon Chlorophyll a
25%
  Benthic Index of Biotic Integrity Icon Aquatic grasses
24%
Benthic Index of Biotic Integrity Icon Dissolved oxygen
84%
  Benthic Index of Biotic Integrity Icon Benthic Index of Biotic Integrity
46%
Benthic Index of Biotic Integrity Icon Water clarity
10%
  Total Nitrogen Icon Total Nitrogen
56%
Total Phosphorus Icon Total Phosphorus
70%
  Bay Anchovy Icon Bay Anchovy
100%
Blue Crabs Icon Blue Crabs
68%
  Striped Bass Icon Striped Bass
100%

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