During the end of season production sampling, sub-samples of each species from each transect are taken and CHN analysis is run on them at a later date in the lab. The species collected are Spartina alterniflora (tall and short forms) , Distichlis spicata, and Spartina patens. This comparison helps to better understand the chemcial composition and how there may be differences between nutrient enriched and references. Abbreviations: TSA- Spartina alterniflora (tall form) SSA- Spartina alterniflora (short form) DS- Distichlis spicata SP- Spartina patens Creeks- Reference creeks are West and Nelson Nutrient Enriched creeks are Sweeney and Clubhead. Sweeney has been fertilized every summer from 2004-2011. Clubhead had been fertilized in 2005 and then from 2009-2011. All creeks have two branches determined by direction at confluence while facing upstream (Left or Right). Plant transects run perpendicular to creeks at various points with a front pole at the creek bank and a back pole an the high marsh. Transects are in the order of 1, 2, 4, 3 or blue, green, red, yellow from confluence of branch.