SS4.09 Does Intentional Nutrient Fertilization (N,P And Fe) Foster C Sequestration and/or Increased Fish Fertilization?
Date: Tuesday, June 11, 2002
Time: 11:15:00 AM
Location: Colwood
 
SharpJH, Graduate College of Marine Studies, Univeristy of Delaware, Lewes, USA, jsharp@udel.edu
 
NUTRIENT FERTILIZATION - CAN WE LEARN FROM FAILURE IN ESTUARINE EUTROPHICATION?
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Most nutrient fertilization scientific experiments have been performed in oceanic environments and both oceanic and coastal waters are targets for proposed large-scale intentional fertilization projects. However, extensive fertilization has occurred over the past century or so in most of the estuarine and coastal waters of the world near large human populations. Clearly, with massive hypoxia and anoxia as well as apparent increased harmful algal blooms, this unintentional fertilization has not been successful. This presentation will examine broad spatial and temporal scales of nutrient, organic matter, and primary production information from the Delaware Estuary, one of the most nutrient enriched estuaries in North America. Comparison will be made of nutrient fluxes and phytoplankton responses in the Delaware to other estuaries to coastal and oceanic environments.