Presence or absence of marsh plant species along transects through a nutrient enriched marsh receiving wastewater effluent and a reference (unenriched) marsh, Plum Island Ecosystems LTER.

Presence or absence of marsh plant species along transects through a nutrient enriched marsh receiving wastewater effluent and a reference (unenriched) marsh. Nutrient enrichment comes from the Ipswich Wastewater Treatment Facility on Greenwood Creek in Ipswich.  The marsh around Clubhead Creek, Rowley, MA was used as a reference.