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- Title
Can Oyster Restoration Reverse Cultural Eutrophication in Chesapeake Bay?
- Authors
Cerco, Carl F.; Noel, Mark R.
- Abstract
We investigated the hypothesis that effects of cultural eutrophication can be reversed through natural resource restoration via addition of an oyster module to a predictive eutrophication model. We explored the potential effects of native oyster restoration on dissolved oxygen (DO), chlorophyll, light attenuation, and submerged aquatic vegetation (SAV) in eutrophic Chesapeake Bay. A tenfold increase in existing oyster biomass is projected to reduce system-wide summer surface chlorophyll by approximately 1 mg m-3, increase summer-average deep-water DO by 0.25 g m-3, add 2100 kg C (20%) to summer SAV biomass, and remove 30,000 kg d-1 nitrogen through enhanced denitrification. The influence of oyster restoration on deep extensive pelagic waters is limited. Oyster restoration is recommended as a supplement to nutrient load reduction, not as a substitute.
- Subjects
CHESAPEAKE Bay (Md. &; Va.); MARYLAND; VIRGINIA; OYSTER fisheries; EUTROPHICATION control; DESTRATIFICATION of lakes; DISSOLVED oxygen in water; NATURAL resources
- Publication
Estuaries & Coasts, 2007, Vol 30, Issue 2, p331
- ISSN
1559-2723
- Publication type
Article
- DOI
10.1007/BF02700175