EcoCheck banner


Browse History: Choptank River (2012)

Chesapeake Bay - Reporting Region Summary:



  Estuary Selection Map

Scores & Conceptual Diagram


Bay Health Index
Benthic Index of Biotic Integrity Icon
46%
C
Choptank River: 2012

Moderate ecosystem health. Decreases in total phosphorus and aquatic grass scores were offset by large improvements in the remaining five indicators. Benthic community score was the highest out of all regions.


Score Legend
Locator Map
  Index/Indicator Score     Index/Indicator Score
Benthic Index of Biotic Integrity Icon Chlorophyll a
46%
  Benthic Index of Biotic Integrity Icon Aquatic grasses
6%
Benthic Index of Biotic Integrity Icon Dissolved oxygen
92%
  Benthic Index of Biotic Integrity Icon Benthic Index of Biotic Integrity
83%
Benthic Index of Biotic Integrity Icon Water clarity
23%
  Total Nitrogen Icon Total Nitrogen
20%
Total Phosphorus Icon Total Phosphorus
51%
       

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.


Region Info

The Choptank River watershed drains approximately 795 square miles. Counties included in the watershed include portions of Caroline, Dorchester, Queen Anne's, and Talbot. The Choptank River starts in Delaware and becomes tidal near Greensboro, Maryland. Some of the larger bodies of water include the Choptank, Little Choptank, and Tred Avon Rivers. Almost half of the land in the Choptank watershed is agricultural land, with a third being covered in forest. Cambridge is the largest city in the Choptank River watershed, with a population of 11,000. Other major cities and towns include Easton and Denton. The 2000 census population for the Maryland part of the watershed was 71,000. There are four major wastewater treatment plants in the watershed. Three of the four utilize Best Management Practices. (Based on MD DNR Tributary Strategy Report by Aadland et al., 2007 and updated 2000 land use classifications).

choptank_riverconceptual diagram.png

Editable Vector Version (SVG)