Benthic algae chlorophyll measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA.

Benthic chlorophyl measurements of surface sediments (top 0-2cm) from a variety of habitats in saltmarsh tidal creeks of the Rowley River, Rowley and Ipswich, MA. Habitats include: mudflat, filamentous algae, tall Spartina alterniflora, short Spartina alterniflora and Spartina patens zones. The TIDE project aims to simulate eutrophication on a large scale by the addition of NO3- aiming to reach 70µM concentrations from May to September every year during the growing season. This fertilization of the marsh has been going on at Sweeney Creek since the 2004 growing season through 2011 and at Clubhead Creek in 2005 and then from 2009 till 2011.